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Repository: chroblert/SecurityBaselineCheck
Branch: master
Commit: 048a8a7e4c9a
Files: 11
Total size: 336.4 KB
Directory structure:
gitextract_nnm6_la9/
├── .gitattributes
├── LICENSE
├── README/
│ └── 77766a601331a6c9ef597b778706fd9c.png-quanzi
├── README.md
├── baseline_check_JC0o0l.sh
├── baseline_check_v2.1_JC0o0l.sh
├── baseline_check_v2.2_JC0o0l.sh
├── baseline_check_v2_JC0o0l.sh
├── linux_baseline_check.sh
├── sec.inf
└── win2012_baseline_check.ps1
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FILE: LICENSE
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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
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You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.
================================================
FILE: README.md
================================================
# SecurityBaselineCheck
[<h1>脚本请到AssetManage项目下的Agent目录下去下载<h1>](https://github.com/chroblert/AssetManage/tree/master/Agent)
## 0x01 介绍
这个项目准备打造一个安全基线检查平台，期望能够以最简单的方式在需要进行检查的服务器上运行。能够达到这么一种效果：基线检查脚本(以后称之为agent)可以单独在目标服务器上运行，并展示出相应不符合基线的地方，并且可以将检查时搜集到的信息以json串的形式上传到后端处理服务器上，后端服务器可以进行统计并进行可视化展示。
Agent用到的技术：
- Shell脚本
- Powershell脚本
后端服务器用到的技术：
- python
- django
- bootstrap
- html
存储所用：
- sqlite3
Linux Agent：
Windows Agent：
后端：
基线扫描记录：
基线扫描详情与检查结果：
## 0x02 项目进展
- 20191215 根据CIS制定Centos7检查基线
- 20191228 发布LinuxAgent v1.0
- 只能本地运行展示结果，无法上传JSON串
- 只能对Centos7系统进行基线检查
- 20191230 更新LinuxAgent v2.0
- 重构代码，增加上传JSON串功能
- 20191231 根据CIS制定Window2012检查基线
- 20200103 发布WindowsAgent v1.0
- 只能在本地运行，无法上传JSON串
- 20200105 发布WindowsAgent v2.0
- 修改部分代码
- 可以上传json串
- 20200108 更新AssetManage
- 增加Windows基线检查图形展示界面
- 20200110 更新AssetManage，更新Linux基线检查脚本
- 增加完善Linux基线检查图形展示界面
- 20200113 发布后端图形展示界面
- 后端展示界面源代码位于：`github.com/chroblert/assetmanage`
- 后端展示界面docker镜像位于：
## 0x03 使用步骤
1\. 下载AssetManage这个后端展示项目,
源码地址位于：[AssetManage](https://github.com/chroblert/AssetManage)
docker镜像位于：`registry.cn-hangzhou.aliyuncs.com/jc0o0l/assetmanage:2.0`
```shell
# 提前安装最新版SQLite3.30,python3.6
# git clone项目
git clone https://github.com/chroblert/assetmanage.git
cd AssetManage
# 使用python3安装依赖包
python3 -m pip install -r requirements
python3 manage.py makemigrations
python3 manage.py migrate
python3 manage.py runserver 0.0.0.0:8888
# 假定该服务器的IP未112.112.112.112
```
2\. 更改agent中后端服务器的ip和端口为上一步中服务器的IP`112.112.112.112`和端口`8888`
**对于Windows：**
**对于Linux：**
3\. 将Agent拖到要进行基线检查的服务器上，以管理员权限运行agent
4\. 访问后端服务器可视化展示界面：`http://112.112.112.112:8888`,
**点击基线检查，查看扫描记录**
**点击`Click Me`查看检查结果**
最后，希望大家多多关注下`信安札记`，给点支持@~@
---
参考资料：[在Django 2.2中启动开发服务器时处理SQLite3错误](https://cloud.tencent.com/developer/article/1439327)
================================================
FILE: baseline_check_JC0o0l.sh
================================================
#!/bin/bash
function get_ip_info {
local ipList=`ifconfig | grep inet |grep -v inet6|grep -v 127|sed 's/^[ ]*//g'|cut -d" " -f2`
echo $ipList
}
function get_basic_info {
echo [·] collect basic info
hostname=`hostname`
ipList=`get_ip_info`
kernelVersion=`uname -r`
if [[ $(cat /proc/version) =~ "Red Hat" ]]; then
osVersion=`cat /etc/redhat-release|cut -f1,4 -d" "`
fi
basic_info={\"hostname\":\"$hostname\",\"ipList\":\"$ipList\",\"kernelVersion\":\"$kernelVersion\",\"osVersion\":\"$osVersion\"}
echo -e "\033[32m$basic_info \033[0m"
}
function init_check {
# 1. init configuration
echo [·] check init configuration
# 1.1 file system configuration
# 1.1.1 /tmp separate mount
mount|grep /tmp |while read res;do
if [[ -z $res ]]; then
echo -e "\033[31m[-] /tmp/ not mounted on separate dick\033[0m"
# 1.1.2 /tmp noexec nosuid
elif [[ ! $res =~ "noexec" ]];then
echo -e "\033[31m[-] no noexec option on /tmp partion\033[0m"
if [[ ! $res =~ "nosuid" ]];then
echo -e "\033[31m[-] no nosuid option on /tmp partion\033[0m"
fi
elif [[ ! $res =~ "nosuid" ]];then
echo -e "\033[31m[-] no nosuid option on /tmp partion\033[0m"
fi
done
# 1.2 secure boot configuration
# 1.2.1 /boot/grub2/grub.cfg permission /boot/grub2/user.cfg permission 0600 root:root
if [[ -f /boot/grub2/grub.cfg ]];then
res=`stat /boot/grub2/grub.cfg |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4`
if [[ `echo $res|cut -d"/" -f1` = "0600" ]]; then
echo -e "\033[32m[+] /boot/grub2/grub.cfg permission is 0600 \033[0m"
else
echo -e "\033[31m[-] /boot/grub2/grub.cfg permission is not 0600 \033[0m"
fi
fi
# 1.2.2 Ensure bootloader password is set
if [[ -f /boot/grub2/grub.cfg ]];then
res=`grep "^GRUB2 PASSWORD" /boot/grub2/grub.cfg`
if [[ -n $res ]]; then
echo -e "\033[32m[+] /boot/grub2/grub.cfg seted password \033[0m"
else
echo -e "\033[31m[-] /boot/grub2/grub.cfg not set password \033[0m"
fi
fi
# 1.2.3 single user mode need authentication
if [[ -f /usr/lib/systemd/system/rescue.service ]] && [[ -f /usr/lib/systemd/system/emergency.service ]]; then
res1=`grep /sbin/sulogin /usr/lib/systemd/system/rescue.service`
res2=`grep /sbin/sulogin /usr/lib/systemd/system/emergency.service`
if [[ $res1 = "ExecStart=-/bin/sh -c \"/usr/sbin/sulogin; /usr/bin/systemctl --fail --no-block default\"" ]] && [[ $res2 = "ExecStart=-/bin/sh -c \"/usr/sbin/sulogin; /usr/bin/systemctl --fail --no-block default\"" ]]; then
echo -e "\033[32m[+] single user mode need authentication \033[0m"
else
echo -e "\033[31m[+] single user mode does not need authentication \033[0m"
fi
fi
# 1.3 Mantary Access Control
# 1.3.1 ensure the SELinux state is enforcing
if [[ -f /etc/selinux/config ]]; then
local num=$(sestatus|grep -c enforcing)
if [[ $num -gt 1 ]]; then
echo -e "\033[32m[+] SELinux state is enforcing \033[0m"
else
echo -e "\033[31m[-] SELinux state is not enforcing \033[0m"
fi
fi
# 1.3.2 ensure selinux policy is configured
if [[ -f /etc/selinux/config ]]; then
res=$(sestatus|grep targeted)
if [[ -n $res ]]; then
echo -e "\033[32m[+] SELinux policy is configured \033[0m"
else
echo -e "\033[31m[-] SELinux policy is not configure to targeted \033[0m"
fi
fi
}
function service_check {
# 2. service configuration
echo [·] check service configuration
# 2.1 time sync
# 2.1.1 time sync service is installed
if $(rpm -q ntp 1>/dev/null||rpm -q chrony 1>/dev/null) ; then
if $(rpm -q ntp 1>/dev/null) ; then
if [[ -f /etc/ntp.conf ]]; then
local res=$(egrep "^(server|pool)" /etc/ntp.conf)
if [[ -n $res ]]; then
echo -e "\033[32m[+] remote ntp server is configured \033[0m"
else
echo -e "\033[31m[-] remote ntp server is not configured \033[0m"
fi
fi
fi
if $(rpm -q chrony 1>/dev/null); then
if [[ -f /etc/chrony.conf ]]; then
local res=$(egrep "^(server|pool)" /etc/chrony.conf)
if [[ -n $res ]]; then
echo -e "\033[32m[+] remote chrony server is configured \033[0m"
else
echo -e "\033[31m[-] remote chrony server is not configured \033[0m"
fi
fi
fi
fi
# 2.1.2 x-window
local res=$(rpm -qa xorg-x11*)
if [[ -z $res ]]; then
echo -e "\033[32m[+] x11-windows is not installed \033[0m"
else
echo -e "\033[31m[-] x11-windows is installed \033[0m"
fi
}
function network_check {
# 3. network configuration
echo [·] check network configuration
# 3.1 hosts file configuration
# 3.1.1 check /etc/hosts.deny file
if [[ -f /etc/hosts.deny ]]; then
echo -e "\033[32m[+] file /etc/hosts.deny exists \033[0m"
local res=`stat /etc/hosts.deny |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4`
if [[ $(echo $res|cut -d"/" -f1) = "0644" ]];then
echo -e "\033[32m[+] file /etc/hosts.deny permission is 0644 \033[0m"
else
echo -e "\033[31m[-] file /etc/hosts.deny permission is not 0644 \033[0m"
fi
local res=$(egrep "^[^#].+" /etc/hosts.deny)
if [[ -n $res ]]; then
echo -e "\033[32m[+] file /etc/hosts.deny is configured \033[0m"
else
echo -e "\033[31m[-] file /etc/hosts.deny is not configured \033[0m"
fi
else
echo -e "\033[31m[-] file /etc/hosts.deny does not exists \033[0m"
fi
# 3.1.2 check /etc/hosts.allow file
if [[ -f /etc/hosts.allow ]]; then
echo -e "\033[32m[+] file /etc/hosts.allow exists \033[0m"
local res=`stat /etc/hosts.allow |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4`
if [[ $(echo $res|cut -d"/" -f1) = "0644" ]];then
echo -e "\033[32m[+] file /etc/hosts.allow permission is 0644 \033[0m"
else
echo -e "\033[31m[-] file /etc/hosts.allow permission is not 0644 \033[0m"
fi
local res=$(egrep "^[^#].+" /etc/hosts.deny)
if [[ -n $res ]]; then
echo -e "\033[32m[+] file /etc/hosts.allow is configured \033[0m"
else
echo -e "\033[31m[-] file /etc/hosts.allow is not configured \033[0m"
fi
else
echo -e "\033[31m[-] file /etc/hosts.allow does not exists \033[0m"
fi
# 3.2 firewall configuration
# 3.2.1 ensure iptables is installed
if $(rpm -q iptables 1>/dev/null); then
echo -e "\033[32m[+] iptables is installed \033[0m"
# 3.2.2 ensure INPUT OUTPUT chain policy is DROP
iptables -L|grep policy|while read x;do
if [[ $x =~ "INPUT" ]] && [[ $x =~ "DROP" ]]; then
echo -e "\033[32m[+] INPUT chain policy is DROP \033[0m"
elif [[ $x =~ "INPUT" ]] && [[ ! $x =~ "DROP" ]]; then
echo -e "\033[31m[-] INPUT chain policy is not DROP \033[0m"
fi
if [[ $x =~ "OUTPUT" ]] && [[ $x =~ "DROP" ]]; then
echo -e "\033[32m[+] OUTPUT chain policy is DROP \033[0m"
elif [[ $x =~ "OUTPUT" ]] && [[ ! $x =~ "DROP" ]]; then
echo -e "\033[31m[-] OUTPUT chain policy is not DROP \033[0m"
fi
done
else
echo -e "\033[31m[-] iptables is not installed \033[0m"
fi
}
function auditd_check {
# 4. auditd configuration
echo [·] check auditd configuration
# 4.1 ensure auditd is enabled
echo "-[·] check auditd if is enabled"
if [[ $(systemctl is-enabled auditd) = "enabled" ]]; then
echo -e "\033[32m-[+] auditd is enabled \033[0m"
else
echo -e "\033[31m-[-] auditd is not enabled \033[0m"
fi
# 4.2 some settings in /etc/audit/auditd.conf
echo "-[·] settings in /etc/audit/auditd.conf"
if [[ -f /etc/audit/auditd.conf ]]; then
maxLogFile=$(grep "^max_log_file[[:blank:]]=" /etc/audit/auditd.conf|sed "s/ //g"|cut -d"=" -f 2)
maxLogFileAction=$(grep "^max_log_file_action" /etc/audit/auditd.conf|sed "s/ //g"|cut -d"=" -f 2)
spaceLeftAction=$(grep "^space_left_action" /etc/audit/auditd.conf|sed "s/ //g"|cut -d"=" -f 2)
numLogs=$(grep "^num_logs" /etc/audit/auditd.conf|sed "s/ //g"|cut -d"=" -f 2)
if [[ -n $maxLogFile ]]; then
echo -e "\033[32m-[+] max_log_file size is ${maxLogFile} M \033[0m"
else
echo -e "\033[31m-[-] max_log_file size is not setted \033[0m"
fi
if [[ -n $maxLogFileAction ]]; then
echo -e "\033[32m-[+] max_log_file_action is ${maxLogFileAction}\033[0m"
else
echo -e "\033[31m-[-] max_log_file_action is not setted \033[0m"
fi
if [[ -n $spaceLeftAction ]]; then
echo -e "\033[32m-[+] space_left_action is ${spaceLeftAction}\033[0m"
else
echo -e "\033[31m-[-] space_left_action is not setted \033[0m"
fi
if [[ -n $numLogs ]]; then
echo -e "\033[32m-[+] the num of logs is ${numLogs} \033[0m"
else
echo -e "\033[31m-[-] num_logs is not setted \033[0m"
fi
fi
# 4.3 rules in /etc/audit/audit.rules
# arch 64
echo "-[·] time-change"
if [[ -f /etc/audit/audit.rules ]]; then
echo -e "\033[32m-[+] /etc/audit/audit.rules is exist \033[0m"
# 4.3.1 time-change
if [[ -n $(grep time /etc/audit/audit.rules) ]]; then
local timeChangeList=$(egrep "(stime|clock_settime|adjtimex|settimeofday|/etc/localtime)" /etc/audit/audit.rules|wc -l)
if [[ ${timeChangeList} -gt 3 ]]; then
echo -e "\033[32m-[+] audith the change of date and time \033[0m"
elif [[ ${timeChangeList} -gt 1 ]]; then
echo -e "\033[31m-[-] not fully set rule about audit the change of date and time \033[0m"
else
echo -e "\033[31m-[-] not set rule about audit the change of date and time \033[0m"
fi
else
echo -e "\033[31m-[-] not set rule about audit the change of date and time \033[0m"
fi
# 4.3.2 user and group change
echo "-[·] user and group change"
local keyArray=("/etc/passwd" "/etc/group" "/etc/gshadow" "/etc/shadow" "/etc/security/opasswd")
for i in ${keyArray[@]} ; do
if [[ -n $(grep $i /etc/audit/audit.rules) ]]; then
echo -e "\033[32m-[+] audit the change of $i \033[0m"
else
echo -e "\033[31m-[-] not audit the change of $i \033[0m"
fi
done
# 4.3.3 system's network environment change
echo "-[·] system's network environment change"
local keyArray=("/etc/issue" "/etc/issue.net" "/etc/hosts" "/etc/sysconfig/network" "/etc/sysconfig/network-scripts/" )
for i in ${keyArray[@]} ; do
if [[ -n $(grep $i /etc/audit/audit.rules) ]]; then
echo -e "\033[32m-[+] audit the change of $i \033[0m"
else
echo -e "\033[31m-[-] not audit the change of $i \033[0m"
fi
done
local keyArray=("sethostname" "setdomainname")
for i in ${keyArray[@]} ; do
if [[ -n $(grep $i /etc/audit/audit.rules) ]]; then
echo -e "\033[32m-[+] audit the use of syscall $i \033[0m"
else
echo -e "\033[31m-[-] not audit the use of syscall $i \033[0m"
fi
done
# 4.3.4 system's Mandatory Access Controls change
echo "-[·] system's Mandatory Access Controls change"
local keyArray=("/etc/selinux" "/usr/share/selinux")
for i in ${keyArray[@]} ; do
if [[ -n $(grep $i /etc/audit/audit.rules) ]]; then
echo -e "\033[32m-[+] audit the change of $i \033[0m"
else
echo -e "\033[31m-[-] not audit the change of $i \033[0m"
fi
done
# 4.3.5 audit events of login and logout
echo "-[·] audit events of login and logout"
local keyArray=("/var/log/lastlog" "/var/run/faillock/")
for i in ${keyArray[@]} ; do
if [[ -n $(grep $i /etc/audit/audit.rules) ]]; then
echo -e "\033[32m-[+] audit the change of $i \033[0m"
else
echo -e "\033[31m-[-] not audit the change of $i \033[0m"
fi
done
# 4.3.6 audit the change of discretionary access control
echo "-[·] audit the change of discretionary access control"
local keyArray=("(chmod|fchmod|fchmodat)" "(chown|fchown|fchownat)" "(setxattr|lsetxattr|removexattr)" "(lock|time)")
for i in ${keyArray[@]} ; do
if [[ -n $(egrep $i /etc/audit/audit.rules) ]]; then
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g')
echo -e "\033[32m-[+] audit the use of systemcall $i \033[0m"
else
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g')
echo -e "\033[31m-[-] not audit the use of systemcall $i \033[0m"
fi
done
# 4.3.7 audit the events of unsuccessful unauthorized file access attempts
echo "-[·] audit the events of unsuccessful unauthorized file access attempts"
local keyArray=("(create|open|openat|truncate|ftruncate).*?exit=-EACCESS" "(create|open|openat|truncate|ftruncate).*?exit=-EPERM" )
for i in ${keyArray[@]} ; do
if [[ -n $(egrep $i /etc/audit/audit.rules) ]]; then
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[32m-[+] audit the use of systemcall $i \033[0m"
else
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[31m-[-] not audit the use of systemcall $i \033[0m"
fi
done
# 4.3.8 audit the use of privileged commands
echo "-[·] audit the use of privileged commands"
#find / -name "passwd"
local res=$(find / -xdev \( -perm -4000 -o -perm -2000 \) -type f) #|awk '{print "-a always,exit -F path="$1"-F perm=x -F auid>=1000 -F auid!=4294967295 -k privileged"}'
for i in ${res[@]} ; do
if [[ -n $(egrep $i /etc/audit/audit.rules) ]]; then
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[32m-[+] audit the use of command $i \033[0m"
else
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[31m-[-] not audit the use of command $i \033[0m"
fi
done
# 4.3.9 audit the change of file sudoer
echo "-[·] audit the change of file sudoer"
local keyArray=("/etc/sudoers" "/etc/sudoers.d/")
for i in ${keyArray[@]} ; do
if [[ -n $(egrep $i /etc/audit/audit.rules) ]]; then
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[32m-[+] audit the change of file $i \033[0m"
else
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[31m-[-] not audit the change of file $i \033[0m"
fi
done
# 4.3.10 check the audit configuration is setted to immutable unless reboot the server
echo "-[·] check the audit configuration is setted to immutable unless reboot the server"
local res=$(grep "^\s*[^#]" /etc/audit/audit.rules|tail -1|egrep "-e.*?2")
if [[ -n $res ]]; then
echo -e "\033[32m-[+] auditd setted -e 2 \033[0m"
else
echo -e "\033[31m-[-] auditd not setted -e 2 \033[0m"
fi
else
echo -e "\033[32m[+] /etc/audit/audit.rules is not exist \033[0m"
fi
}
function log_check {
echo "[·] check log configuration"
# 5.1 ensure auditd is enabled
echo "-[·] check rsyslog if is enabled"
if [[ $(systemctl is-enabled rsyslog) = "enabled" ]]; then
echo -e "\033[32m-[+] rsyslog is enabled \033[0m"
else
echo -e "\033[31m-[-] rsyslog is not enabled \033[0m"
fi
}
function authentication_check {
echo "[·] check cron ssh pam and env configuration"
# 6.1 cron configuration
echo "-[·] check cron configuration"
# 6.1.1 check cron service is enabled
echo "-[·] check crond if is enabled"
if [[ $(systemctl is-enabled crond) = "enabled" ]]; then
echo -e "\033[32m-[+] crond is enabled \033[0m"
else
echo -e "\033[31m-[-] crond is not enabled \033[0m"
fi
# 6.1.2 check cron's configuration file permission
echo "-[·] check cron's configuration file permission"
local keyArray=("/etc/crontab" "/etc/cron.hourly" "/etc/cron.daily" "/etc/cron.weekly" "/etc/cron.monthly" "/etc/cron.d")
for i in ${keyArray[@]} ; do
local res=$(stat $i |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4|cut -d"/" -f1)
if [[ $res = "0600" ]] || [[ $res = "0700" ]]; then
echo -e "\033[32m-[+] file $i's permission is $res \033[0m"
else
echo -e "\033[31m-[-] file $i's permission is $res ,not 0600 or 0700 \033[0m"
fi
done
# 6.1.3 check cron.allow cron.deny permission and owner
echo "-[·] check cron.allow cron.deny configuration file permission"
local keyArray=("/etc/cron.allow" "/etc/cron.deny")
for i in ${keyArray[@]} ; do
if [[ ! -f $i ]]; then
echo -e "\033[31m-[-] file $i not exist \033[0m"
continue
fi
local res1=$(stat $i |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4|cut -d"/" -f1)
local res2=$(stat $i |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f3,4|sed 's/)//g'|cut -d" " -f3,6)
if [[ $res1 = "0600" ]] || [[ $res1 = "0700" ]]; then
echo -e "\033[32m-[+] file $i's permission is $res \033[0m"
else
echo -e "\033[31m-[-] file $i's permission is $res ,not 0600 or 0700 \033[0m"
fi
if [[ $res2 = "root root" ]]; then
echo -e "\033[32m-[+] file $i's owner is $res2 \033[0m"
else
echo -e "\033[31m-[-] file $i's owner is not root \033[0m"
fi
done
# 6.2 SSH configuration
echo "-[·] check ssh configuration"
if [[ $(systemctl is-enabled sshd) = "enabled" ]]; then
# 6.2.1 /etc/ssh/sshd_config permission 0600
local file="/etc/ssh/sshd_config"
local res=$(stat $file |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4|cut -d"/" -f1)
if [[ $res = "0600" ]]; then
echo -e "\033[32m-[+] file $file's access permission is $res \033[0m"
else
echo -e "\033[3-m-[-] file $file's access permission is $res \033[0m"
fi
# 6.2.2 check ssh x11 forwarding if is disabled
local res=$(grep "^X11Forwaring" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep no) ]]; then
echo -e "\033[32m-[+] X11Forwarding no \033[0m"
else
echo -e "\033[31m-[-] not set X11Forwarding no \033[0m"
fi
# 6.2.3 check ssh MaxAUTHTries if is 4
local res=$(grep "^MaxAuthTries" /etc/ssh/sshd_config)
if [[ -n $res ]]; then
echo -e "\033[32m-[+] $res \033[0m"
else
echo -e "\033[31m-[-] not set MaxAuthTries \033[0m"
fi
# 6.2.4 check ssh IgnoreRhosts if is enabled
local res=$(grep "^IgnoreRhosts" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep yes) ]]; then
echo -e "\033[32m-[+] IgnoreRhosts yes \033[0m"
else
echo -e "\033[31m-[-] not set IgnoreRhosts no\033[0m"
fi
# 6.2.5 check ssh HostbasedAuthentication if is disabled
local res=$(grep "^HostbasedAuthentication" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep no) ]]; then
echo -e "\033[32m-[+] HostbasedAuthentication no \033[0m"
else
echo -e "\033[31m-[-] not set HostbasedAuthentication no\033[0m"
fi
# 6.2.6 check ssh root login if is diabled
local res=$(grep "^PermitRootLogin" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep no) ]]; then
echo -e "\033[32m-[+] PermitRootLogin no \033[0m"
else
echo -e "\033[31m-[-] not set PermitRootLogin no\033[0m"
fi
# 6.2.7 check ssh PermitEmptyPasswords if is diabled
local res=$(grep "^PermitEmptyPasswords" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep no) ]]; then
echo -e "\033[32m-[+] PermitEmptyPasswords no \033[0m"
else
echo -e "\033[31m-[-] not set PermitEmptyPasswords no\033[0m"
fi
# 6.2.8 check ssh PermitUserEnvironment if is diabled
local res=$(grep "^PermitUserEnvironment" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep no) ]]; then
echo -e "\033[32m-[+] PermitUserEnvironment no \033[0m"
else
echo -e "\033[31m-[-] not set PermitUserEnvironment no\033[0m"
fi
# 6.2.9 check if set specific MAC algorithms
local res=$(grep "^MACs" /etc/ssh/sshd_config)
if [[ -n $res ]]; then
echo -e "\033[32m-[+] will use specific MAC algorithms $res \033[0m"
else
echo -e "\033[31m-[-] not set specific MAC algorithms\033[0m"
fi
# 6.2.10 check SSH idle Timeout Interval if is configured
local res=$(grep "^ClientAliveInterval" /etc/ssh/sshd_config)
if [[ -n $res ]]; then
echo -e "\033[32m-[+] $res \033[0m"
else
echo -e "\033[31m-[-] not set ClientAliveInterval \033[0m"
fi
# 6.2.11 check SSH LoginGrace Time
local res=$(grep "^LoginGraceTime" /etc/ssh/sshd_config)
if [[ -n $res ]]; then
echo -e "\033[32m-[+] $res \033[0m"
else
echo -e "\033[31m-[-] not set LoginGraceTime \033[0m"
fi
else
echo -e "\033[32m-[+] sshd is not enabled \033[0m"
fi
# 6.3 PAM configuration
echo "-[·] check pam configuration"
# 6.3.1 password creation policy
if [[ -f /etc/security/pwquality.conf ]]; then
local minlen=$(grep ^minlen /etc/security/pwquality.conf | sed 's/ //g')
local minclass=$(grep ^minclass /etc/security/pwquality.conf |sed 's/ //g')
if [[ -n $minlen ]]; then
echo -e "\033[32m-[+] minimime length of password is $(echo $minlen|cut -d= -f2) \033[0m"
else
echo -e "\033[31m-[-] not set minlen \033[0m"
fi
if [[ -n $minclass ]]; then
echo -e "\033[32m-[+] minclass of password is $(echo $minclass|cut -d= -f2) \033[0m"
else
local keyArray=("^dcredit" "^lcredit" "^ocredit" "^ucredit")
local tmpCount=0
for i in ${keyArray[@]}; do
if [[ -n $(grep $i /etc/security/pwquality.conf) ]]; then
tmpCount=$(expr 1 + $tmpCount)
fi
done
if [[ tmpCount -ge 2 ]]; then
echo -e "\033[32m-[+] minclass of passwd is $tmpCount \033[0m"
else
echo -e "\033[31m-[-] not set minclass \033[0m"
fi
fi
fi
# 6.3.2 lock account and unlock time
local files=("/etc/pam.d/password-auth" "/etc/pam.d/system-auth")
local keyArray=("pam_faillock\.so.*?unlock_time")
for i in ${files[@]}; do
for k in ${keyArray[@]}; do
if [[ -n $(egrep $k $i ) ]]; then
echo -e "\033[32m-[+] set lock and unlock_time in $i \033[0m"
else
echo -e "\033[31m-[-] not set lock and unlock_time in $i \033[0m"
fi
done
done
# 6.3.3 check password reuse if is limited
for i in ${files[@]}; do
local res=$(egrep '^password\s+sufficient\s+pam_unix.so' $i)
if [[ -n $res ]] && [[ $res =~ "remember=" ]]; then
local tmp=$(echo $res|sed 's/.*\(remember=[[:digit:]]\).*/\1/g'|sed 's/ //g'|cut -d= -f2)
echo -e "\033[32m-[+] password reuse limit is $tmp in $i \033[0m"
else
echo -e "\033[31m-[-] passowrd reuse limit not set in $i \033[0m"
fi
done
# 6.3.4 check the algorithm of store password if is sha512
for i in ${files[@]}; do
local res=$(egrep '^password\s+sufficient\s+pam_unix.so' $i)
if [[ -n $res ]] && [[ $res =~ "sha512" ]]; then
echo -e "\033[32m-[+] password storage algorithm is set to sha512 in $i \033[0m"
else
echo -e "\033[31m-[-] password storage algorithm is not specific to sha512 in $i \033[0m"
fi
done
# 6.4 user accounts and environment
echo "-[·] check user accounts and environment"
if [[ -f /etc/login.defs ]]; then
# 6.4.1 basic settings
local file='/etc/login.defs'
passMaxDays=$(grep ^PASS_MAX_DAYS $file|sed -r 's/[^1234567890]*([1234567890]{1,})/\1/g')
passMinDays=$(grep ^PASS_MIN_DAYS $file|sed -r 's/[^1234567890]*([1234567890]{1,})/\1/g')
passWarnAge=$(grep ^PASS_WARN_DAYS $file|sed -r 's/[^1234567890]*([1234567890]{1,})/\1/g')
inactive=$(useradd -D|grep INACTIVE|sed 's/ //g'|cut -d= -f2)
if [[ $passMaxDays -le 90 ]]; then
echo -e "\033[32m-[+] the maximume days of password have to change is $passMaxDays \033[0m"
else
echo -e "\033[31m-[-] the maximume days of password have to change is $passMaxDays ,should less than 90 day\033[0m"
fi
if [[ $passMinDays -ge 7 ]]; then
echo -e "\033[32m-[+] the minimume days of password have to change is $passMinDays \033[0m"
else
echo -e "\033[31m-[-] the minimume days of password have to change is $passMinDays ,should great than 7 day\033[0m"
fi
if [[ $passWarnAge -ge 7 ]]; then
echo -e "\033[32m-[+] the minimume days of warn password need to change is $passWarnAge \033[0m"
else
echo -e "\033[31m-[-] the minimume days of warn password need to change is $passWarnAge ,should greate than 7 day\033[0m"
fi
if [[ $inactive != -1 ]]; then
echo -e "\033[32m-[+] auto lock account when the $inactive day haven't login \033[0m"
else
echo -e "\033[31m-[-] haven't set day of auto lock accounts \033[0m"
fi
# 6.4.2 check system's account if is unlogin
local res=$(egrep -v "^\+" /etc/passwd | awk -F: '($1!="root" && $1!="sync" && $1!="shutdown" && $1!="halt" && $3<1000 && $7!="/sbin/nologin" && $7!="/bin/false") {print}')
if [[ -z $res ]]; then
echo -e "\033[32m-[+] system account can't login \033[0m"
else
echo -e "\033[31m-[-] the below user's shell need set to /sbin/nologin \033[0m"
fi
# 6.4.3 check default group for the root account if is GID 0
local res=$(grep "^root:" /etc/passwd|cut -d: -f4)
if [[ $res = 0 ]]; then
echo -e "\033[32m-[+] default group for the root account is GID 0 \033[0m"
else
echo -e "\033[31m-[-]] default group for the root account is is GID $res,not GID 0 \033[0m"
fi
# 6.4.4 check default user shell timeout if is 900 seconds or less
local files=("/etc/bashrc" "/etc/profile")
for file in ${files[@]}; do
if [[ ! -f $file ]]; then
continue
fi
local res=$(grep "^TMOUT" $file|sed 's/ //g'|cut -d= -f2)
if [[ -z $res ]]; then
echo -e "\033[31m-[-] not set TMOUT in file $file \033[0m"
continue
fi
if [[ $res -le 900 ]]; then
echo -e "\033[32m-[+] when idle time great then $res seconds will close connection \033[0m"
else
echo -e "\033[31m-[-] when idle time great then $res seconds will close connection,the time should less than 900 seconds \033[0m"
fi
done
# 6.4.5 check access to su command if is restricted
local res=$(grep pam_wheel.so /etc/pam.d/su)
if [[ -n $res ]]; then
local res=$(grep wheel /etc/group|cut -d: -f4)
if [[ -n $res ]]; then
echo -e "\033[32m-[+] access to su command is specific to $res \033[0m"
else
echo -e "\033[31m-[-] access to su command is not restricted \033[0m"
fi
else
echo -e "\033[31m-[-] access to su command is not restricted \033[0m"
fi
else
echo -e "\033[31m-[-] file /etc/login.defs is not exist \033[0m"
fi
}
function system_check {
echo "[·] check permission of important file and configuration of user and group"
# 7.1 check permission of important file and uid gid
echo "-[·] check permission of important file"
local files=("/etc/passwd" "/etc/shadow" "/etc/group" "/etc/gshadow" "/etc/passwd-" "/etc/shadow-" "/etc/group-" "/etc/gshadow-")
for file in ${files[@]}; do
local perm=$(stat $file |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4|cut -d"/" -f1)
local uidGid=$(stat /etc/passwd |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f3,4|sed 's/ //g'|sed -r 's/([[:digit:]]{1,}).*([[:digit:]]{1,}).*/\1 \2/g'|cut -d" " -f1,2)
if [[ $file =~ "shadow" ]]; then
if [[ $perm = "0000" ]]; then
echo -e "\033[32m-[+] file $file's permission is $perm \033[0m"
else
echo -e "\033[31m-[-] file $file's permission is $perm,should set to 0000 \033[0m"
fi
else
if [[ $perm = "0644" ]]; then
echo -e "\033[32m-[+] file $file's permission is $perm \033[0m"
else
echo -e "\033[31m-[-] file $file's permission is $perm,should set to 0644 \033[0m"
fi
fi
if [[ $uidGid = "0 0" ]]; then
echo -e "\033[32m-[+] file $file's uid gid is $uidGid \033[0m"
else
echo -e "\033[31m-[-] file $file's uid gid is $uidGid,should set to 0 0 \033[0m"
fi
done
# 7.2 check configuration of user and group
echo "-[·] check configuration of user and group"
# 7.2.1 check if user's password is empty
users=$(cat /etc/shadow |awk -F: '($2=="!!"){print $1}'|while read x;do
res=$(grep ${x} /etc/passwd|cut -d: -f7); if [[ $res != "/sbin/nologin" ]] && [[ $res != "/sbin/shutdon" ]] && [[ $res != "/sbin/halt" ]]; then
echo $x
#echo -e "\033[31m-[-] $x should have a passwd,not empty \033[0m";
fi;
done)
if [[ -z $users ]]; then
echo -e "\033[32m-[+] all user account have set password \033[0m"
else
echo -e "\033[31m-[-] user:$(echo $users|sed 's/\n/ /g') should set a password ,rather than empty \033[0m"
fi
# 7.2.2 check if root is the only UID 0 account
local users=$(cat /etc/passwd|awk -F: '($3==0){print $1}')
if [[ $users = 'root' ]]; then
echo -e "\033[32m-[+] root is the only account that uid is 0 \033[0m"
else
echo -e "\033[31m-[-] $(echo $users|sed 's/root//g') uid should not be 0 \033[0m"
fi
# 7.2.3 check root PATH integrith
if [ "$(echo $PATH|grep ::)" != "" ]; then
echo -e "\033[31m-[-] Empty Directory in PATH (::) \033[0m"
fi
if [ "$(echo $PATH|grep :$)" != "" ]; then
echo -e "\033[31m-[-] Trailing : in PATH \033[0m"
fi
path=$( echo $PATH|sed -e 's/::/:/' -e 's/:$//' -e 's/:/ /g')
set -- $path
while [[ $1 != "" ]]; do
if [[ $1 = "." ]]; then
echo -e "\033[31m-[-] PATH contains . \033[0m"
shift
continue
fi
if [[ -d $1 ]]; then
local dirperm=$(ls -ldH $1|cut -d" " -f1)
if [[ $(echo $dirperm|cut -c6) != "-" ]]; then
echo -e "\033[31m-[-] Group Write permission should not set on directory $1 \033[0m"
fi
if [[ $(echo $dirperm|cut -c9) != "-" ]]; then
echo -e "\033[31m-[-] Other Write permission should not set on directory $1 \033[0m"
fi
local dirown=$(ls -ldH $1|awk '{print $3}')
if [[ $dirown != "root" ]]; then
echo -e "\033[31m-[-] dir $1's owner is $dirown,should be root \033[0m"
fi
else
echo -e "\033[31m-[-] $1 is not a directory or not exist \033[0m"
fi
shift
done
# 7.2.4 check if is all users' home directories exist
cat /etc/passwd|egrep -v '^(root|halt|sync|shutdown)'|awk -F: '($7 != "/sbin/nologin" && $7 != "/bin/false"){print $1 " " $6}'|while read user dir; do
if [[ ! -d $dir ]]; then
echo -e "\033[31m-[-] the home directory ($dir) of user $user does not exist \033[0m"
else
# 7.2.5 check if users' home directories permissions are 750 or more restrictive
local dirperm=$(ls -ld $dir|cut -d" " -f1)
if [[ $(echo $dirperm |cut -c6) != "-" ]]; then
echo -e "\033[31m-[-] Group Write permission set on the home directory ($dir) of user $user \033[0m"
fi
if [[ $(echo $dirperm |cut -c8) != "-" ]]; then
echo -e "\033[31m-[-] Other Read permission set on the home directory ($dir) of user $user \033[0m"
fi
if [[ $(echo $dirperm |cut -c9) != "-" ]]; then
echo -e "\033[31m-[-] Other Write permission set on the home directory ($dir) of user $user \033[0m"
fi
if [[ $(echo $dirperm |cut -c10) != "-" ]]; then
echo -e "\033[31m-[-] Other Execute permission set on the home directory ($dir) of user $user \033[0m"
fi
# 7.2.6 check if is users own their home directory
local owner=$(stat -L -c "%U" $dir)
if [[ $owner != $user ]]; then
echo -e "\033[31m-[-]The home directory ($dir) of user $user is owned by $owner \033[0m"
fi
# 7.2.7 check users' dot files are not group or world writable
for file in $dir/.[A-Za-z0-9]*; do
if [[ ! -h $file ]] && [[ -f $file ]]; then
local fileperm=$(ls -ld $file|cut -d" " -f1)
if [[ $(echo $fileperm|cut -c6) != "-" ]]; then
echo -e "\033[31m-[-] Group Write permission set on file $file \033[0m"
fi
if [[ $(echo $fileperm|cut -c9) != "-" ]]; then
echo -e "\033[31m-[-] Other Write permission set on file $file \033[0m"
fi
fi
done
# 7.2.8 check if no usrs have .netrc .rhosts .forward file
if [[ ! -h $dir/.netrc ]] && [[ -f $dir/.netrc ]]; then
echo -e "\033[31m-[-] .netrc file $dir/.netrc exists \033[0m"
fi
if [[ ! -h $dir/.rhosts ]] && [[ -f $dir/.rhosts ]]; then
echo -e "\033[31m-[-] .rhosts file $dir/.rhosts exists \033[0m"
fi
if [[ ! -h $dir/.forward ]] && [[ -f $dir/.forward ]]; then
echo -e "\033[31m-[-] .forward file $dir/.forward exists \033[0m"
fi
fi
# 7.2.9 check if all groups in /etc/passwd exist in /etc/group
for i in $(cut -d: -s -f4 /etc/passwd|sort -u); do
grep -q -P "^.*?:[^:]*:$i" /etc/group
if [[ $? -ne 0 ]]; then
echo -e "\033[31m-[-] Group $i is referenced by /etc/passwd but does not exist in /etc/group \033[0m"
fi
done
done
# 7.2.10 check if every user has a unique UID
cat /etc/passwd|cut -d":" -f3|sort -n|uniq -c|while read x; do
[[ -z $x ]] && break
set - $x
if [[ $1 -gt 1 ]]; then
local users=$(awk -F: '($3==n){print $1}' n=$2 /etc/passwd|xargs)
echo -e "\033[31m-[-] Duplicate UID $2 : $users \033[0m"
fi
done
# 7.2.11 check if every group has a unique GID
cat /etc/group|cut -d":" -f3|sort -n|uniq -c|while read x; do
[[ -z $x ]] && break
set - $x
if [[ $1 -gt 1 ]]; then
local groups=$(awk -F: '($3==n){print $1}' n=$2 /etc/group|xargs)
echo -e "\033[31m-[-] Duplicate GID $2 : $groups \033[0m"
fi
done
# 7.2.12 check if user name is unique
cat /etc/passwd|cut -d":" -f1|sort -n|uniq -c|while read x; do
[[ -z $x ]] && break
set - $x11
if [[ $1 -gt 1 ]]; then
local uids=$(awk -F: '($1 == n){print $3}' n=$2 /etc/passwd|xargs)
echo -e "\033[31m-[-] Duplicate user name $2 : $uids \033[0m"
fi
done
# 7.2.13 check if group name is unique
cat /etc/group|cut -d":" -f1|sort -n|uniq -c|while read x; do
[[ -z $x ]] && break
set - $x11
if [[ $1 -gt 1 ]]; then
local gids=$(awk -F: '($1 == n){print $3}' n=$2 /etc/group|xargs)
echo -e "\033[31m-[-] Duplicate group name $2 : $gids \033[0m"
fi
done
}
echo """
==================================
| Linux 基线检查工具 |
| author:JC0o0l |
| version:1.0 |
==================================
"""
#get_basic_info
#init_check
#service_check
#network_check
#auditd_check
#log_check
#authentication_check
system_check
================================================
FILE: baseline_check_v2.1_JC0o0l.sh
================================================
#!/bin/bash
function get_ip_info {
local ipList=`ifconfig | grep inet |grep -v inet6|grep -v 127|sed 's/^[ ]*//g'|cut -d" " -f2`
echo $ipList
}
function get_basic_info {
echo [·] collect basic info
hostname=`hostname`
ipList=`get_ip_info`
kernelVersion=`uname -r`
if [[ $(cat /proc/version) =~ "Red Hat" ]]; then
osVersion=`cat /etc/redhat-release|cut -f1,4 -d" "`
fi
basic_info={\"hostname\":\"$hostname\",\"ipList\":\"$ipList\",\"kernelVersion\":\"$kernelVersion\",\"osVersion\":\"$osVersion\"}
echo $basic_info
}
function init_check {
# 1. init configuration
echo [·] check init configuration
# 1.1 file system configuration
# 1.1.1 /tmp separate mount
local tmpIfSeparate #=""
local tmpIfNoexec #=""
local tmpIfNosuid #=""
local res=$(mount|grep "/tmp ")
if [[ -z $res ]]; then
echo -e "\033[31m-[-] /tmp/ not mounted on separate dick\033[0m"
tmpIfSeparate="false"
tmpIfNoexec="false"
tmpIfNosuid="false"
else
tmpIfSeparate="true"
tmpIfNoexec="true"
tmpIfNosuid="true"
fi
if $tmpIfSeparate; then
#mount|grep "/sys/kernel/debug " |while read res;do
while read res;do
#echo "mount | grep /sys --result-->" $res
# 1.1.2 /tmp noexec nosuid
local diskPart=$(echo $res|cut -d" " -f3)
if [[ ! $res =~ "noexec" ]];then
echo -e "\033[31m-[-] no noexec option on $diskPart partion\033[0m"
tmpIfNoexec="false"
if [[ ! $res =~ "nosuid" ]];then
echo -e "\033[31m-[-] no nosuid option on $diskPart partion\033[0m"
tmpIfNosuid="false"
fi
elif [[ ! $res =~ "nosuid" ]];then
echo -e "\033[31m-[-] no nosuid option on $diskPart partion\033[0m"
tmpIfNosuid="false"
fi
done < <(mount | grep "/tmp ")
fi
tmp_partition_info={\"tmpIfSeparate\":\"$tmpIfSeparate\",\"tmpIfNoexec\":\"$tmpIfNoexec\",\"tmpIfNosuid\":\"$tmpIfNosuid\"}
#echo $tmp_partition_info
# 1.2 secure boot configuration
if [[ -f /boot/grub2/grub.cfg ]];then
grubcfgIfExist="true"
grubcfgPermission="0600"
grubcfgIfSetPasswd="true"
else
grubcfgIfExist="false"
grubcfgPermission="0000"
grubcfgIfSetPasswd="false"
fi
if $grubcfgIfExist; then
# 1.2.1 /boot/grub2/grub.cfg permission /boot/grub2/user.cfg permission 0600 root:root
res=$(stat /boot/grub2/grub.cfg |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4)
grubcfgPermission=$(echo $res|cut -d"/" -f1)
if [[ $(echo $res|cut -d"/" -f1) = "0600" ]]; then
echo -e "\033[32m-[+] /boot/grub2/grub.cfg permission is 0600 \033[0m"
else
echo -e "\033[31m-[-] /boot/grub2/grub.cfg permission is not 0600 \033[0m"
fi
# 1.2.2 Ensure bootloader password is set
res=$(grep "^GRUB2 PASSWORD" /boot/grub2/grub.cfg)
if [[ -n $res ]]; then
echo -e "\033[32m-[+] /boot/grub2/grub.cfg seted password \033[0m"
grubcfgIfSetPasswd="true"
else
echo -e "\033[31m-[-] /boot/grub2/grub.cfg not set password \033[0m"
grubcfgIfSetPasswd="false"
fi
fi
# 1.2.3 single user mode need authentication
if [[ -f /usr/lib/systemd/system/rescue.service ]] && [[ -f /usr/lib/systemd/system/emergency.service ]]; then
res1=`grep /sbin/sulogin /usr/lib/systemd/system/rescue.service`
res2=`grep /sbin/sulogin /usr/lib/systemd/system/emergency.service`
if [[ $res1 = "ExecStart=-/bin/sh -c \"/usr/sbin/sulogin; /usr/bin/systemctl --fail --no-block default\"" ]] && [[ $res2 = "ExecStart=-/bin/sh -c \"/usr/sbin/sulogin; /usr/bin/systemctl --fail --no-block default\"" ]]; then
echo -e "\033[32m-[+] single user mode need authentication \033[0m"
singleUserModeIfNeedAuth="true"
else
echo -e "\033[31m-[+] single user mode does not need authentication \033[0m"
singleUserModeIfNeedAuth="false"
fi
fi
# 1.3 Mantary Access Control
# 1.3.1 ensure the SELinux state is enforcing
if [[ -f /etc/selinux/config ]]; then
local num=$(sestatus|grep -c enforcing)
if [[ $num -gt 1 ]]; then
echo -e "\033[32m-[+] SELinux state is enforcing \033[0m"
selinuxStateIfEnforcing="true"
else
echo -e "\033[31m-[-] SELinux state is not enforcing \033[0m"
selinuxStateIfEnforcing="false"
fi
fi
# 1.3.2 ensure selinux policy is configured
if [[ -f /etc/selinux/config ]]; then
res=$(sestatus|grep targeted)
if [[ -n $res ]]; then
echo -e "\033[32m-[+] SELinux policy is configured \033[0m"
selinuxPolicyIfConfigured="true"
else
echo -e "\033[31m-[-] SELinux policy is not configure to targeted \033[0m"
selinuxPolicyIfConfigured="false"
fi
fi
boot_secure_info={\"grubcfgIfExist\":\"$grubcfgIfExist\",\"grubcfgPermission\":\"$grubcfgPermission\",\"grubcfgIfSetPasswd\":\"$grubcfgIfSetPasswd\",\"singleUserModeIfNeedAuth\":\"$singleUserModeIfNeedAuth\",\"selinuxStateIfEnforcing\":\"$selinuxStateIfEnforcing\",\"selinuxPolicyIfConfigured\":\"$selinuxPolicyIfConfigured\"}
#echo $boot_secure_info
init_check_res={\"tmp_partition_info\":$tmp_partition_info,\"boot_secure_info\":$boot_secure_info}
}
function service_check {
# 2. service configuration
echo [·] check service configuration
# 2.1 time sync
# 2.1.1 time sync service is installed
if $(rpm -q ntp 1>/dev/null||rpm -q chrony 1>/dev/null) ; then
if $(rpm -q ntp 1>/dev/null) ; then
if [[ -f /etc/ntp.conf ]]; then
local res=$(egrep "^(server|pool)" /etc/ntp.conf)
if [[ -n $res ]]; then
echo -e "\033[32m-[+] remote ntp server is configured \033[0m"
timeSyncServerIfConfigured="true"
else
echo -e "\033[31m-[-] remote ntp server is not configured \033[0m"
timeSyncServerIfConfigured="false"
fi
fi
fi
if $(rpm -q chrony 1>/dev/null); then
if [[ -f /etc/chrony.conf ]]; then
local res=$(egrep "^(server|pool)" /etc/chrony.conf)
if [[ -n $res ]]; then
echo -e "\033[32m-[+] remote chrony server is configured \033[0m"
timeSyncServerIfConfigured="true"
else
echo -e "\033[31m-[-] remote chrony server is not configured \033[0m"
timeSyncServerIfConfigured="false"
fi
fi
fi
fi
# 2.1.2 x-window
local res=$(rpm -qa xorg-x11*)
if [[ -z $res ]]; then
echo -e "\033[32m-[+] x11-windows is not installed \033[0m"
x11windowIfNotInstalled="true"
else
echo -e "\033[31m-[-] x11-windows is installed \033[0m"
x11windowIfNotInstalled="false"
fi
service_check_res={\"timeSyncServerIfConfigured\":\"$timeSyncServerIfConfigured\",\"x11windowIfNotInstalled\":\"$x11windowIfNotInstalled\"}
}
function network_check {
# 3. network configuration
echo [·] check network configuration
# 3.1 hosts file configuration
# 3.1.1 check /etc/hosts.deny file
if [[ -f /etc/hosts.deny ]]; then
hostsDenyFileIfExist="true"
echo -e "\033[32m-[+] file /etc/hosts.deny exists \033[0m"
local res=$(stat /etc/hosts.deny |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4)
hostsDenyFilePermission=$(echo $res|cut -d"/" -f1)
if [[ $(echo $res|cut -d"/" -f1) = "0644" ]];then
echo -e "\033[32m-[+] file /etc/hosts.deny permission is 0644 \033[0m"
else
echo -e "\033[31m-[-] file /etc/hosts.deny permission is not 0644 \033[0m"
fi
local res=$(egrep "^[^#].+" /etc/hosts.deny)
if [[ -n $res ]]; then
hostsDenyFileIfConfigured="true"
echo -e "\033[32m-[+] file /etc/hosts.deny is configured \033[0m"
else
hostsDenyFileIfConfigured="false"
echo -e "\033[31m-[-] file /etc/hosts.deny is not configured \033[0m"
fi
else
hostsDenyFileIfExist="false"
echo -e "\033[31m-[-] file /etc/hosts.deny does not exists \033[0m"
fi
# 3.1.2 check /etc/hosts.allow file
if [[ -f /etc/hosts.allow ]]; then
hostsAllowFileIfExist="true"
echo -e "\033[32m-[+] file /etc/hosts.allow exists \033[0m"
local res=`stat /etc/hosts.allow |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4`
hostsAllowFilePermission=$(echo $res|cut -d"/" -f1)
if [[ $(echo $res|cut -d"/" -f1) = "0644" ]];then
echo -e "\033[32m-[+] file /etc/hosts.allow permission is 0644 \033[0m"
else
echo -e "\033[31m-[-] file /etc/hosts.allow permission is not 0644 \033[0m"
fi
local res=$(egrep "^[^#].+" /etc/hosts.deny)
if [[ -n $res ]]; then
hostsAllowFileIfConfigured="true"
echo -e "\033[32m-[+] file /etc/hosts.allow is configured \033[0m"
else
hostsAllowFileIfConfigured="false"
echo -e "\033[31m-[-] file /etc/hosts.allow is not configured \033[0m"
fi
else
hostsAllowFileIfExist="false"
echo -e "\033[31m-[-] file /etc/hosts.allow does not exists \033[0m"
fi
# 3.2 firewall configuration
# 3.2.1 ensure iptables is installed
if $(rpm -q iptables 1>/dev/null); then
iptablesIfInstalled="true"
echo -e "\033[32m-[+] iptables is installed \033[0m"
# 3.2.2 ensure INPUT OUTPUT chain policy is DROP
#iptables -L|grep policy|while read x;do
while read x;do
if [[ $x =~ "INPUT" ]] && [[ $x =~ "DROP" ]]; then
iptablesInputPolicyIfDrop="true"
echo -e "\033[32m-[+] INPUT chain policy is DROP \033[0m"
elif [[ $x =~ "INPUT" ]] && [[ ! $x =~ "DROP" ]]; then
iptablesInputPolicyIfDrop="false"
echo -e "\033[31m-[-] INPUT chain policy is not DROP \033[0m"
fi
if [[ $x =~ "OUTPUT" ]] && [[ $x =~ "DROP" ]]; then
iptablesOutputPolicyIfDrop="true"
echo -e "\033[32m-[+] OUTPUT chain policy is DROP \033[0m"
elif [[ $x =~ "OUTPUT" ]] && [[ ! $x =~ "DROP" ]]; then
iptablesOutputPolicyIfDrop="false"
echo -e "\033[31m-[-] OUTPUT chain policy is not DROP \033[0m"
fi
done < <(iptables -L|grep policy)
else
iptablesIfInstalled="false"
echo -e "\033[31m-[-] iptables is not installed \033[0m"
fi
network_check_res={\"hostsAllowFileIfExist\":\"$hostsAllowFileIfExist\",\"hostsAllowFilePermission\":\"$hostsAllowFilePermission\",\"hostsAllowFileIfConfigured\":\"$hostsAllowFileIfConfigured\",\"hostsDenyFileIfExist\":\"$hostsDenyFileIfExist\",\"hostsDenyFilePermission\":\"$hostsDenyFilePermission\",\"hostsDenyFileIfConfigured\":\"$hostsDenyFileIfConfigured\",\"iptablesIfInstalled\":\"$iptablesIfInstalled\",\"iptablesInputPolicyIfDrop\":\"$iptablesInputPolicyIfDrop\",\"iptablesOutputPolicyIfDrop\":\"$iptablesOutputPolicyIfDrop\"}
}
function auditd_check {
# 4. auditd configuration
echo [·] check auditd configuration
# 4.1 ensure auditd is enabled
echo "-[·] check auditd if is enabled"
if [[ $(systemctl is-enabled auditd) = "enabled" ]]; then
echo -e "\033[32m-[+] auditd is enabled \033[0m"
auditdIfEnabled="true"
else
auditdIfEnabled="false"
echo -e "\033[31m-[-] auditd is not enabled \033[0m"
fi
# 4.2 some settings in /etc/audit/auditd.conf
echo "-[·] settings in /etc/audit/auditd.conf"
if [[ -f /etc/audit/auditd.conf ]]; then
auditdconfIfExist="true"
maxLogFile=$(grep "^max_log_file[[:blank:]]=" /etc/audit/auditd.conf|sed "s/ //g"|cut -d"=" -f 2)
maxLogFileAction=$(grep "^max_log_file_action" /etc/audit/auditd.conf|sed "s/ //g"|cut -d"=" -f 2)
spaceLeftAction=$(grep "^space_left_action" /etc/audit/auditd.conf|sed "s/ //g"|cut -d"=" -f 2)
numLogs=$(grep "^num_logs" /etc/audit/auditd.conf|sed "s/ //g"|cut -d"=" -f 2)
if [[ -n $maxLogFile ]]; then
auditdIfSetMaxLogFile=$maxLogFile
echo -e "\033[32m-[+] max_log_file size is ${maxLogFile} M \033[0m"
else
auditdIfSetMaxLogFile="false"
echo -e "\033[31m-[-] max_log_file size is not setted \033[0m"
fi
if [[ -n $maxLogFileAction ]]; then
auditdIfSetMaxLogFileAction="$maxLogFileAction"
echo -e "\033[32m-[+] max_log_file_action is ${maxLogFileAction}\033[0m"
else
auditdIfSetMaxLogFileAction="false"
echo -e "\033[31m-[-] max_log_file_action is not setted \033[0m"
fi
if [[ -n $spaceLeftAction ]]; then
auditdIfSetSpaceLeftAction="$spaceLeftAction"
echo -e "\033[32m-[+] space_left_action is ${spaceLeftAction}\033[0m"
else
auditdIfSetSpaceLeftAction="false"
echo -e "\033[31m-[-] space_left_action is not setted \033[0m"
fi
if [[ -n $numLogs ]]; then
auditdIfSetNumLogs="$numLogs"
echo -e "\033[32m-[+] the num of logs is ${numLogs} \033[0m"
else
auditdIfSetNumLogs="false"
echo -e "\033[31m-[-] num_logs is not setted \033[0m"
fi
else
auditdconfIfExist="false"
fi
auditd_config_info={\"auditdIfEnabled\":\"$auditdIfEnabled\",\"auditdconfIfExist\":\"$auditdconfIfExist\",\"auditdIfSetMaxLogFile\":\"$auditdIfSetMaxLogFile\",\"auditdIfSetMaxLogFileAction\":\"$auditdIfSetMaxLogFileAction\",\"auditdIfSetSpaceLeftAction\":\"$auditdIfSetSpaceLeftAction\",\"auditdIfSetNumLogs\":\"$auditdIfSetNumLogs\"}
echo $auditd_config_info
# 4.3 rules in /etc/audit/audit.rules
# arch 64
echo "-[·] time-change"
if [[ -f /etc/audit/audit.rules ]]; then
auditdrulesIfExist="true"
echo -e "\033[32m-[+] /etc/audit/audit.rules is exist \033[0m"
if [[ ! -n $(grep time /etc/audit/audit.rules) ]]; then
auditdRulesIfNotNull="false"
echo -e "\033[31m-[-] not set rule about audit the change of date and time \033[0m"
else
auditdRulesIfNotNull="true"
# 4.3.1 time-change
local timeChangeList=$(egrep "(stime|clock_settime|adjtimex|settimeofday|/etc/localtime)" /etc/audit/audit.rules|wc -l)
if [[ ${timeChangeList} -gt 3 ]]; then
auditdIfCheckTimechange="true"
echo -e "\033[32m-[+] audith the change of date and time \033[0m"
elif [[ ${timeChangeList} -gt 1 ]]; then
auditdIfCheckTimechange="false"
echo -e "\033[31m-[-] not fully set rule about audit the change of date and time \033[0m"
else
auditdIfCheckTimechange="false"
echo -e "\033[31m-[-] not set rule about audit the change of date and time \033[0m"
fi
# 4.3.2 user and group change
echo "-[·] user and group change"
local keyArray=("/etc/passwd" "/etc/group" "/etc/gshadow" "/etc/shadow" "/etc/security/opasswd")
tmpArray1=()
tmpArray2=()
for i in ${keyArray[@]} ; do
if [[ -n $(grep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i)
echo -e "\033[32m-[+] audit the change of $i \033[0m"
else
tmpArray2+=($i)
echo -e "\033[31m-[-] not audit the change of $i \033[0m"
fi
done
auditdRulesCheckedUserandgroupfile=${tmpArray1[@]}
auditdRulesNotCheckedUserandgroupfile=${tmpArray2[@]}
# 4.3.3 system's network environment change
echo "-[·] system's network environment change"
local keyArray=("/etc/issue" "/etc/issue.net" "/etc/hosts" "/etc/sysconfig/network" "/etc/sysconfig/network-scripts/" )
tmpArray1=()
tmpArray2=()
for i in ${keyArray[@]} ; do
if [[ -n $(grep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i)
echo -e "\033[32m-[+] audit the change of $i \033[0m"
else
tmpArray2+=($i)
echo -e "\033[31m-[-] not audit the change of $i \033[0m"
fi
done
local keyArray=("sethostname" "setdomainname")
for i in ${keyArray[@]} ; do
if [[ -n $(grep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i)
echo -e "\033[32m-[+] audit the use of syscall $i \033[0m"
else
echo -e "\033[31m-[-] not audit the use of syscall $i \033[0m"
tmpArray2+=($i)
fi
done
auditdRulesCheckedNetworkenv=${tmpArray1[@]}
auditdRulesNotCheckedNetworkenv=${tmpArray2[@]}
# 4.3.4 system's Mandatory Access Controls change
echo "-[·] system's Mandatory Access Controls change"
local keyArray=("/etc/selinux" "/usr/share/selinux")
tmpArray1=()
tmpArray2=()
for i in ${keyArray[@]} ; do
if [[ -n $(grep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i)
echo -e "\033[32m-[+] audit the change of $i \033[0m"
else
tmpArray2+=($i)
echo -e "\033[31m-[-] not audit the change of $i \033[0m"
fi
done
auditdRulesCheckedMACchange=${tmpArray1[@]}
auditdRulesNotCheckedMACchange=${tmpArray2[@]}
# 4.3.5 audit events of login and logout
echo "-[·] audit events of login and logout"
local keyArray=("/var/log/lastlog" "/var/run/faillock/")
tmpArray1=()
tmpArray2=()
for i in ${keyArray[@]} ; do
if [[ -n $(grep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i)
echo -e "\033[32m-[+] audit the change of $i \033[0m"
else
tmpArray2+=($i)
echo -e "\033[31m-[-] not audit the change of $i \033[0m"
fi
done
auditdRulesCheckedLoginoutEvents=${tmpArray1[@]}
auditdRulesNotCheckedLoginoutEvents=${tmpArray2[@]}
# 4.3.6 audit the change of discretionary access control
echo "-[·] audit the change of discretionary access control"
local keyArray=("(chmod|fchmod|fchmodat)" "(chown|fchown|fchownat)" "(setxattr|lsetxattr|removexattr)" "(lock|time)")
tmpArray1=()
tmpArray2=()
for i in ${keyArray[@]} ; do
if [[ -n $(egrep $i /etc/audit/audit.rules) ]]; then
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g')
echo -e "\033[32m-[+] audit the use of systemcall $i \033[0m"
tmpArray1+=($i)
else
tmpArray2+=($i)
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g')
echo -e "\033[31m-[-] not audit the use of systemcall $i \033[0m"
fi
done
auditdRulesCheckedDACChangeSyscall=${tmpArray1[@]}
auditdRulesNotCheckedDACChangeSyscall=${tmpArray2[@]}
# 4.3.7 audit the events of unsuccessful unauthorized file access attempts
echo "-[·] audit the events of unsuccessful unauthorized file access attempts"
local keyArray=("(create|open|openat|truncate|ftruncate).*?exit=-EACCESS" "(create|open|openat|truncate|ftruncate).*?exit=-EPERM" )
tmpArray1=()
tmpArray2=()
for i in ${keyArray[@]} ; do
if [[ -n $(egrep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i)
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[32m-[+] audit the use of systemcall $i \033[0m"
else
tmpArray2+=($i)
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[31m-[-] not audit the use of systemcall $i \033[0m"
fi
done
auditdRulesCheckedFileAccessAttemptSyscall=${tmpArray1[@]}
auditdRulesNotCheckedFileAccessAttemptSyscall=${tmpArray2[@]}
# 4.3.8 audit the use of privileged commands
echo "-[·] audit the use of privileged commands"
#find / -name "passwd"
local res=$(find / -xdev \( -perm -4000 -o -perm -2000 \) -type f) #|awk '{print "-a always,exit -F path="$1"-F perm=x -F auid>=1000 -F auid!=4294967295 -k privileged"}'
tmpArray1=()
tmpArray2=()
for i in ${res[@]} ; do
if [[ -n $(egrep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i)
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[32m-[+] audit the use of command $i \033[0m"
else
tmpArray2+=($i)
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[31m-[-] not audit the use of command $i \033[0m"
fi
done
auditdRulesCheckedPrivilegedCommand=${tmpArray1[@]}
auditdRulesNotCheckedPrivilegedCommand=${tmpArray2[@]}
# 4.3.9 audit the change of file sudoer
echo "-[·] audit the change of file sudoer"
local keyArray=("/etc/sudoers" "/etc/sudoers.d/")
tmpArray1=()
tmpArray2=()
for i in ${keyArray[@]} ; do
if [[ -n $(egrep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i)
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[32m-[+] audit the change of file $i \033[0m"
else
tmpArray2+=($i)
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[31m-[-] not audit the change of file $i \033[0m"
fi
done
auditdRulesCheckedSudoerFile=${tmpArray1[@]}
auditdRulesNotCheckedSudoerFile=${tmpArray2[@]}
# 4.3.10 check the audit configuration is setted to immutable unless reboot the server
echo "-[·] check the audit configuration is setted to immutable unless reboot the server"
local res=$(grep "^\s*[^#]" /etc/audit/audit.rules|tail -1|egrep "-e.*?2")
if [[ -n $res ]]; then
auditdRulesIfImmutable="true"
echo -e "\033[32m-[+] auditd setted -e 2 \033[0m"
else
auditdRulesIfImmutable="false"
echo -e "\033[31m-[-] auditd not setted -e 2 \033[0m"
fi
fi
else
auditdrulesIfExist="false"
echo -e "\033[32m-[+] /etc/audit/audit.rules is not exist \033[0m"
fi
auditd_rules_info={\"auditdrulesIfExist\":\"$auditdrulesIfExist\",\"auditdRulesIfNotNull\":\"$auditdRulesIfNotNull\",\"auditdIfCheckTimechange\":\"$auditdIfCheckTimechange\",\"auditdRulesCheckedUserandgroupfile\":\"$auditdRulesCheckedUserandgroupfile\",\"auditdRulesNotCheckedUserandgroupfile\":\"$auditdRulesNotCheckedUserandgroupfile\",\"auditdRulesCheckedNetworkenv\":\"$auditdRulesCheckedNetworkenv\",\"auditdRulesNotCheckedNetworkenv\":\"$auditdRulesNotCheckedNetworkenv\",\"auditdRulesCheckedMACchange\":\"$auditdRulesCheckedMACchange\",\"auditdRulesNotCheckedMACchange\":\"$auditdRulesNotCheckedMACchange\",\"auditdRulesCheckedLoginoutEvents\":\"$auditdRulesCheckedLoginoutEvents\",\"auditdRulesNotCheckedLoginoutEvents\":\"$auditdRulesNotCheckedLoginoutEvents\",\"auditdRulesCheckedDACChangeSyscall\":\"$auditdRulesCheckedDACChangeSyscall\",\"auditdRulesNotCheckedDACChangeSyscall\":\"$auditdRulesNotCheckedDACChangeSyscall\",\"auditdRulesCheckedFileAccessAttemptSyscall\":\"$auditdRulesCheckedFileAccessAttemptSyscall\",\"auditdRulesNotCheckedFileAccessAttemptSyscall\":\"$auditdRulesNotCheckedFileAccessAttemptSyscall\",\"auditdRulesCheckedPrivilegedCommand\":\"$auditdRulesCheckedPrivilegedCommand\",\"auditdRulesNotCheckedPrivilegedCommand\":\"$auditdRulesNotCheckedPrivilegedCommand\",\"auditdRulesCheckedSudoerFile\":\"$auditdRulesCheckedSudoerFile\",\"auditdRulesNotCheckedSudoerFile\":\"$auditdRulesNotCheckedSudoerFile\",\"auditdRulesIfImmutable\":\"$auditdRulesIfImmutable\"}
auditd_check_res={\"auditd_config_info\":$auditd_config_info,\"auditd_rules_info\":$auditd_rules_info}
}
function log_check {
echo "[·] check log configuration"
# 5.1 ensure auditd is enabled
echo "-[·] check rsyslog if is enabled"
if [[ $(systemctl is-enabled rsyslog) = "enabled" ]]; then
rsyslogIfEnabled="true"
echo -e "\033[32m-[+] rsyslog is enabled \033[0m"
else
rsyslogIfEnabled="false"
echo -e "\033[31m-[-] rsyslog is not enabled \033[0m"
fi
log_check_res={\"rsyslogIfEnabled\":\"$rsyslogIfEnabled\"}
}
function authentication_check {
echo "[·] check cron ssh pam and env configuration"
# 6.1 cron configuration
echo "-[·] check cron configuration"
# 6.1.1 check cron service is enabled
echo "-[·] check crond if is enabled"
if [[ $(systemctl is-enabled crond) = "enabled" ]]; then
echo -e "\033[32m-[+] crond is enabled \033[0m"
crondIfEnabled="true"
else
crondIfEnabled="false"
echo -e "\033[31m-[-] crond is not enabled \033[0m"
fi
# 6.1.2 check cron's configuration file permission
echo "-[·] check cron's configuration file permission"
local keyArray=("/etc/crontab" "/etc/cron.hourly" "/etc/cron.daily" "/etc/cron.weekly" "/etc/cron.monthly" "/etc/cron.d")
crondConfigFilenameArray=$keyArray
tmpArray=()
for i in ${keyArray[@]} ; do
local res=$(stat $i |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4|cut -d"/" -f1)
tmpArray+=($res)
if [[ $res = "0600" ]] || [[ $res = "0700" ]]; then
echo -e "\033[32m-[+] file $i's permission is $res \033[0m"
else
echo -e "\033[31m-[-] file $i's permission is $res ,not 0600 or 0700 \033[0m"
fi
done
crondConfigFilePermission=${tmpArray[@]}
# 6.1.3 check cron.allow cron.deny permission and owner
echo "-[·] check cron.allow cron.deny configuration file permission"
local keyArray=("/etc/cron.allow" "/etc/cron.deny")
crondallowdenyFilenameArray=$keyArray
tmpArray1=()
tmpArray2=()
tmpArray3=()
for i in ${keyArray[@]} ; do
if [[ ! -f $i ]]; then
tmpArray1+=("false")
echo -e "\033[31m-[-] file $i not exist \033[0m"
continue
else
tmpArray1+=("true")
fi
local res1=$(stat $i |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4|cut -d"/" -f1)
tmpArray2+=($res1)
local res2=$(stat $i |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f3,4|sed 's/)//g'|cut -d" " -f3,6)
tmpArray3+=("$res2")
if [[ $res1 = "0600" ]] || [[ $res1 = "0700" ]]; then
echo -e "\033[32m-[+] file $i's permission is $res \033[0m"
else
echo -e "\033[31m-[-] file $i's permission is $res ,not 0600 or 0700 \033[0m"
fi
if [[ $res2 = "root root" ]]; then
echo -e "\033[32m-[+] file $i's owner is $res2 \033[0m"
else
echo -e "\033[31m-[-] file $i's owner is not root \033[0m"
fi
done
crondallowdenyFileIfExistArray=${tmpArray1[@]}
crondallowdenyFilePermissionArray=${tmpArray2[@]}
crondallowdenyFileOwnerArray=${tmpArray3[@]}
crond_config_info={\"crondIfEnabled\":\"$crondIfEnabled\",\"crondConfigFilenameArray\":\"$crondConfigFilenameArray\",\"crondConfigFilePermissionArray\":\"$crondConfigFilePermissionArray\",\"crondallowdenyFilenameArray\":\"$crondallowdenyFilenameArray\",\"crondallowdenyFileIfExistArray\":\"$crondallowdenyFileIfExistArray\",\"crondallowdenyFilePermissionArray\":\"$crondallowdenyFilePermissionArray\",\"crondallowdenyFileOwnerArray\":\"$crondallowdenyFileOwnerArray\"}
# 6.2 SSH configuration
echo "-[·] check ssh configuration"
if [[ $(systemctl is-enabled sshd) = "enabled" ]]; then
sshdIfEnabled="true"
# 6.2.1 /etc/ssh/sshd_config permission 0600
local file="/etc/ssh/sshd_config"
local res=$(stat $file |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4|cut -d"/" -f1)
if [[ $res = "0600" ]]; then
sshdConfigFilePermission=$res
echo -e "\033[32m-[+] file $file's access permission is $res \033[0m"
else
sshdConfigFilePermission="false"
echo -e "\033[3-m-[-] file $file's access permission is $res \033[0m"
fi
# 6.2.2 check ssh x11 forwarding if is disabled
local res=$(grep "^X11Forwaring" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep no) ]]; then
sshdIfDisableX11forwarding="true"
echo -e "\033[32m-[+] X11Forwarding no \033[0m"
else
sshdIfDisableX11forwarding="false"
echo -e "\033[31m-[-] not set X11Forwarding no \033[0m"
fi
# 6.2.3 check ssh MaxAUTHTries if is 4
local res=$(grep "^MaxAuthTries" /etc/ssh/sshd_config)
if [[ -n $res ]]; then
sshdIfSetMaxAuthTries=$(echo $res|sed -r 's/([^1234567890]*)([[:digit:]]+)/\2/')
echo -e "\033[32m-[+] $res \033[0m"
else
sshdIfSetMaxAuthTries="false"
echo -e "\033[31m-[-] not set MaxAuthTries \033[0m"
fi
# 6.2.4 check ssh IgnoreRhosts if is enabled
local res=$(grep "^IgnoreRhosts" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep yes) ]]; then
sshdIfEnableIgnoreRhosts="true"
echo -e "\033[32m-[+] IgnoreRhosts yes \033[0m"
else
sshdIfEnableIgnoreRhosts="false"
echo -e "\033[31m-[-] not set IgnoreRhosts no\033[0m"
fi
# 6.2.5 check ssh HostbasedAuthentication if is disabled
local res=$(grep "^HostbasedAuthentication" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep no) ]]; then
sshdIfDisableHostbasedAuthentication="true"
echo -e "\033[32m-[+] HostbasedAuthentication no \033[0m"
else
sshdIfDisableHostbasedAuthentication="false"
echo -e "\033[31m-[-] not set HostbasedAuthentication no\033[0m"
fi
# 6.2.6 check ssh root login if is diabled
local res=$(grep "^PermitRootLogin" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep no) ]]; then
sshdIfDisablePermitRootLogin="true"
echo -e "\033[32m-[+] PermitRootLogin no \033[0m"
else
sshdIfDisablePermitRootLogin="false"
echo -e "\033[31m-[-] not set PermitRootLogin no\033[0m"
fi
# 6.2.7 check ssh PermitEmptyPasswords if is diabled
local res=$(grep "^PermitEmptyPasswords" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep no) ]]; then
sshdIfDisablePermitEmptyPasswords="true"
echo -e "\033[32m-[+] PermitEmptyPasswords no \033[0m"
else
sshdIfDisablePermitEmptyPasswords="false"
echo -e "\033[31m-[-] not set PermitEmptyPasswords no\033[0m"
fi
# 6.2.8 check ssh PermitUserEnvironment if is diabled
local res=$(grep "^PermitUserEnvironment" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep no) ]]; then
sshdIfDisablePermitUserEnvironment="true"
echo -e "\033[32m-[+] PermitUserEnvironment no \033[0m"
else
sshdIfDisablePermitUserEnvironment="false"
echo -e "\033[31m-[-] not set PermitUserEnvironment no\033[0m"
fi
# 6.2.9 check if set specific MAC algorithms
local res=$(grep "^MACs" /etc/ssh/sshd_config)
if [[ -n $res ]]; then
sshdIfSpecificMACs="true"
echo -e "\033[32m-[+] will use specific MAC algorithms $res \033[0m"
else
sshdIfSpecificMACs="false"
echo -e "\033[31m-[-] not set specific MAC algorithms\033[0m"
fi
# 6.2.10 check SSH idle Timeout Interval if is configured
local res=$(grep "^ClientAliveInterval" /etc/ssh/sshd_config)
if [[ -n $res ]]; then
sshdIfSetClientAliveInterval=$(echo $res|sed -r 's/([^1234567890]*)([[:digit:]]+)/\2/')
echo -e "\033[32m-[+] $res \033[0m"
else
sshdIfSetClientAliveInterval="false"
echo -e "\033[31m-[-] not set ClientAliveInterval \033[0m"
fi
# 6.2.11 check SSH LoginGrace Time
local res=$(grep "^LoginGraceTime" /etc/ssh/sshd_config)
if [[ -n $res ]]; then
sshdIfSetLoginGraceTime=$(echo $res|sed -r 's/([^1234567890]*)([[:digit:]]+)/\2/')
echo -e "\033[32m-[+] $res \033[0m"
else
sshdIfSetLoginGraceTime="false"
echo -e "\033[31m-[-] not set LoginGraceTime \033[0m"
fi
else
sshdIfEnabled="false"
echo -e "\033[32m-[+] sshd is not enabled \033[0m"
fi
sshd_config_info={\"sshdIfEnabled\":\"$sshdIfEnabled\",\"sshdConfigFilePermission\":\"$sshdConfigFilePermission\",\"sshdIfDisableX11forwarding\":\"$sshdIfDisableX11forwarding\",\"sshdIfSetMaxAuthTries\":\"$sshdIfSetMaxAuthTries\",\"sshdIfEnableIgnoreRhosts\":\"$sshdIfEnableIgnoreRhosts\",\"sshdIfDisableHostbasedAuthentication\":\"$sshdIfDisableHostbasedAuthentication\",\"sshdIfDisablePermitRootLogin\":\"$sshdIfDisablePermitRootLogin\",\"sshdIfDisablePermitEmptyPasswords\":\"$sshdIfDisablePermitEmptyPasswords\",\"sshdIfDisablePermitUserEnvironment\":\"$sshdIfDisablePermitUserEnvironment\",\"sshdIfSpecificMACs\":\"$sshdIfSpecificMACs\",\"sshdIfSetClientAliveInterval\":\"$sshdIfSetClientAliveInterval\",\"sshdIfSetLoginGraceTime\":\"$sshdIfSetLoginGraceTime\"}
# 6.3 PAM configuration
echo "-[·] check pam configuration"
# 6.3.1 password creation policy
if [[ -f /etc/security/pwquality.conf ]]; then
pamPwqualityconfIfExist="true"
local minlen=$(grep ^minlen /etc/security/pwquality.conf | sed 's/ //g')
local minclass=$(grep ^minclass /etc/security/pwquality.conf |sed 's/ //g')
if [[ -n $minlen ]]; then
pamIfSetMinlen=$(echo $minlen|cut -d= -f2)
echo -e "\033[32m-[+] minimime length of password is $(echo $minlen|cut -d= -f2) \033[0m"
else
pamIfSetMinlen="false"
echo -e "\033[31m-[-] not set minlen \033[0m"
fi
if [[ -n $minclass ]]; then
pamIfSetMinclass=$(echo $minclass|cut -d= -f2)
echo -e "\033[32m-[+] minclass of password is $(echo $minclass|cut -d= -f2) \033[0m"
else
local keyArray=("^dcredit" "^lcredit" "^ocredit" "^ucredit")
local tmpCount=0
for i in ${keyArray[@]}; do
if [[ -n $(grep $i /etc/security/pwquality.conf) ]]; then
tmpCount=$(expr 1 + $tmpCount)
fi
done
if [[ $tmpCount = 0 ]]; then
pamIfSetMinclass="false"
else
pamIfSetMinclass=$tmpCount
fi
if [[ tmpCount -ge 2 ]]; then
echo -e "\033[32m-[+] minclass of passwd is $tmpCount \033[0m"
else
echo -e "\033[31m-[-] not set minclass \033[0m"
fi
fi
else
pamPwqualityconfIfExist="false"
fi
# 6.3.2 lock account and unlock time
local files=("/etc/pam.d/password-auth" "/etc/pam.d/system-auth")
local keyArray=("pam_faillock\.so.*?unlock_time")
tmpArray1=()
tmpArray2=()
for i in ${files[@]}; do
for k in ${keyArray[@]}; do
if [[ -n $(egrep $k $i ) ]]; then
echo -e "\033[32m-[+] set lock and unlock_time in $i \033[0m"
tmpArray1+=($i)
else
tmpArray2+=($i)
echo -e "\033[31m-[-] not set lock and unlock_time in $i \033[0m"
fi
done
done
sshdSetedLockAndUnlockTimeFiles=${tmpArray1[@]}
sshdNotSetedLockAndUnlockTimeFiles=${tmpArray2[@]}
# 6.3.3 check password reuse if is limited
sshdPamdFileArray=${files[@]}
tmpArray=()
for i in ${files[@]}; do
local res=$(egrep '^password\s+sufficient\s+pam_unix.so' $i)
if [[ -n $res ]] && [[ $res =~ "remember=" ]]; then
local tmp=$(echo $res|sed 's/.*\(remember=[[:digit:]]\).*/\1/g'|sed 's/ //g'|cut -d= -f2)
tmpArray+=($tmp)
echo -e "\033[32m-[+] password reuse limit is $tmp in $i \033[0m"
else
tmpArray+=("false")
echo -e "\033[31m-[-] passowrd reuse limit not set in $i \033[0m"
fi
done
sshdPamdFileReuseLimitArray=${tmpArray[@]}
# 6.3.4 check the algorithm of store password if is sha512
tmpArray=()
for i in ${files[@]}; do
local res=$(egrep '^password\s+sufficient\s+pam_unix.so' $i)
if [[ -n $res ]] && [[ $res =~ "sha512" ]]; then
tmpArray+=("true")
echo -e "\033[32m-[+] password storage algorithm is set to sha512 in $i \033[0m"
else
tmpArray+=("false")
echo -e "\033[31m-[-] password storage algorithm is not specific to sha512 in $i \033[0m"
fi
done
sshdPamdFileIfSetSha512=${tmpArray[@]}
pam_config_info={\"pamPwqualityconfIfExist\":\"$pamPwqualityconfIfExist\",\"pamIfSetMinlen\":\"$pamIfSetMinlen\",\"pamIfSetMinclass\":\"$pamIfSetMinclass\",\"sshdSetedLockAndUnlockTimeFiles\":\"$sshdSetedLockAndUnlockTimeFiles\",\"sshdNotSetedLockAndUnlockTimeFiles\":\"$sshdNotSetedLockAndUnlockTimeFiles\",\"sshdPamdFileArray\":\"$sshdPamdFileArray\",\"sshdPamdFileReuseLimitArray\":\"$sshdPamdFileReuseLimitArray\",\"sshdPamdFileIfSetSha512\":\"$sshdPamdFileIfSetSha512\"}
# 6.4 user accounts and environment
echo "-[·] check user accounts and environment"
if [[ -f /etc/login.defs ]]; then
accountLogindefsIfExist="true"
# 6.4.1 basic settings
local file='/etc/login.defs'
passMaxDays=$(grep ^PASS_MAX_DAYS $file|sed -r 's/[^1234567890]*([1234567890]{1,})/\1/g')
passMinDays=$(grep ^PASS_MIN_DAYS $file|sed -r 's/[^1234567890]*([1234567890]{1,})/\1/g')
passWarnAge=$(grep ^PASS_WARN_DAYS $file|sed -r 's/[^1234567890]*([1234567890]{1,})/\1/g')
inactive=$(useradd -D|grep INACTIVE|sed 's/ //g'|cut -d= -f2)
accountPassMaxDays=$passMaxDays
accountPassMinDays=$passMinDays
accountPassWarnDays=$passWarnAge
accountPassAutolockInactiveDays=$inactive
if [[ $passMaxDays -le 90 ]]; then
echo -e "\033[32m-[+] the maximume days of password have to change is $passMaxDays \033[0m"
else
echo -e "\033[31m-[-] the maximume days of password have to change is $passMaxDays ,should less than 90 day\033[0m"
fi
if [[ $passMinDays -ge 7 ]]; then
echo -e "\033[32m-[+] the minimume days of password have to change is $passMinDays \033[0m"
else
echo -e "\033[31m-[-] the minimume days of password have to change is $passMinDays ,should great than 7 day\033[0m"
fi
if [[ $passWarnAge -ge 7 ]]; then
echo -e "\033[32m-[+] the minimume days of warn password need to change is $passWarnAge \033[0m"
else
echo -e "\033[31m-[-] the minimume days of warn password need to change is $passWarnAge ,should greate than 7 day\033[0m"
fi
if [[ $inactive != -1 ]]; then
echo -e "\033[32m-[+] auto lock account when the $inactive day haven't login \033[0m"
else
echo -e "\033[31m-[-] haven't set day of auto lock accounts \033[0m"
fi
# 6.4.2 check system's account if is unlogin
local res=$(egrep -v "^\+" /etc/passwd | awk -F: '($1!="root" && $1!="sync" && $1!="shutdown" && $1!="halt" && $3<1000 && $7!="/sbin/nologin" && $7!="/bin/false") {print $1}')
accountShouldUnloginAray=()
if [[ -z $res ]]; then
echo -e "\033[32m-[+] system account can't login \033[0m"
else
accountShouldUnloginAray=($(echo $res|sed 's/\n/ /g'))
echo -e "\033[31m-[-] ($(echo $res|sed 's/\n/ /g'))user's shell need set to /sbin/nologin \033[0m"
fi
# 6.4.3 check default group for the root account if is GID 0
local res=$(grep "^root:" /etc/passwd|cut -d: -f4)
accountGIDOfRoot=$res
if [[ $res = 0 ]]; then
echo -e "\033[32m-[+] default group for the root account is GID 0 \033[0m"
else
echo -e "\033[31m-[-]] default group for the root account is is GID $res,not GID 0 \033[0m"
fi
# 6.4.4 check default user shell timeout if is 900 seconds or less
local files=("/etc/bashrc" "/etc/profile")
tmpArray1=()
tmpArray2=()
for file in ${files[@]}; do
if [[ ! -f $file ]]; then
continue
else
tmpArray1+=($file)
fi
local res=$(grep "^TMOUT" $file|sed 's/ //g'|cut -d= -f2)
tmpArray2+=($res)
if [[ -z $res ]]; then
echo -e "\033[31m-[-] not set TMOUT in file $file \033[0m"
continue
fi
if [[ $res -le 900 ]]; then
echo -e "\033[32m-[+] when idle time great than $res seconds will close connection \033[0m"
else
echo -e "\033[31m-[-] when idle time great than $res seconds will close connection,the time should less than 900 seconds \033[0m"
fi
done
accountProfileFileArray=${tmpArray1[@]}
accountProfileTMOUTArray=${tmpArray2[@]}
# 6.4.5 check access to su command if is restricted
local res=$(grep pam_wheel.so /etc/pam.d/su)
accountIfSetUsersCanAccessSuCommand=
if [[ -n $res ]]; then
local res=$(grep wheel /etc/group|cut -d: -f4)
if [[ -n $res ]]; then
accountIfSetUsersCanAccessSuCommand=$res
echo -e "\033[32m-[+] access to su command is specific to $res \033[0m"
else
accountIfSetUsersCanAccessSuCommand="false"
echo -e "\033[31m-[-] access to su command is not restricted \033[0m"
fi
else
accountIfSetUsersCanAccessSuCommand="false"
echo -e "\033[31m-[-] access to su command is not restricted \033[0m"
fi
else
accountLogindefsIfExist="false"
echo -e "\033[31m-[-] file /etc/login.defs is not exist \033[0m"
fi
account_config_info={\"accountPassMaxDays\":\"$accountPassMaxDays\",\"accountPassMinDays\":\"$accountPassMinDays\",\"accountPassWarnDays\":\"$accountPassWarnDays\",\"accountPassAutolockInactiveDays\":\"$accountPassAutolockInactiveDays\",\"accountShouldUnloginArray\":\"$accountShouldUnloginArray\",\"accountGIDOfRoot\":\"$accountGIDOfRoot\",\"accountProfileFileArray\":\"$accountProfileFileArray\",\"accountProfileTMOUTArray\":\"$accountProfileTMOUTArray\",\"accountIfSetUsersCanAccessSuCommand\":\"$accountIfSetUsersCanAccessSuCommand\"}
authentication_check_res={\"crond_config_info\":$crond_config_info,\"sshd_config_info\":$sshd_config_info,\"pam_config_info\":$pam_config_info,\"account_config_info\":$account_config_info}
}
function system_check {
echo "[·] check permission of important file and configuration of user and group"
# 7.1 check permission of important file and uid gid
echo "-[·] check permission of important file"
local files=("/etc/passwd" "/etc/shadow" "/etc/group" "/etc/gshadow" "/etc/passwd-" "/etc/shadow-" "/etc/group-" "/etc/gshadow-")
importantFilenameArray=${files[@]}
tmpArray1=()
tmpArray2=()
for file in ${files[@]}; do
local perm=$(stat $file |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4|cut -d"/" -f1)
local uidGid=$(stat /etc/passwd |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f3,4|sed 's/ //g'|sed -r 's/([[:digit:]]{1,}).*([[:digit:]]{1,}).*/\1 \2/g'|cut -d" " -f1,2)
tmpArray1+=($perm)
tmpArray2+=($uidGid)
if [[ $file =~ "shadow" ]]; then
if [[ $perm = "0000" ]]; then
echo -e "\033[32m-[+] file $file's permission is $perm \033[0m"
else
echo -e "\033[31m-[-] file $file's permission is $perm,should set to 0000 \033[0m"
fi
else
if [[ $perm = "0644" ]]; then
echo -e "\033[32m-[+] file $file's permission is $perm \033[0m"
else
echo -e "\033[31m-[-] file $file's permission is $perm,should set to 0644 \033[0m"
fi
fi
if [[ $uidGid = "0 0" ]]; then
echo -e "\033[32m-[+] file $file's uid gid is $uidGid \033[0m"
else
echo -e "\033[31m-[-] file $file's uid gid is $uidGid,should set to 0 0 \033[0m"
fi
done
importantFilePermissionArray=${tmpArray1[@]}
importantFileUidgidArray=${tmpArray2[@]}
file_permission_info={\"importantFilenameArray\":\"$importantFilenameArray\",\"importantFilePermissionArray\":\"$importantFilePermissionArray\",\"importantFileUidgidArray\":\"$importantFileUidgidArray\"}
# 7.2 check configuration of user and group
echo "-[·] check configuration of user and group"
# 7.2.1 check if user's password is empty
users=$(cat /etc/shadow |awk -F: '($2=="!!"){print $1}'|while read x;do
res=$(grep ${x} /etc/passwd|cut -d: -f7); if [[ $res != "/sbin/nologin" ]] && [[ $res != "/sbin/shutdon" ]] && [[ $res != "/sbin/halt" ]]; then
echo $x
#echo -e "\033[31m-[-] $x should have a passwd,not empty \033[0m";
fi;
done)
if [[ -z $users ]]; then
userIfSetPasswdOrArray="true"
echo -e "\033[32m-[+] all user account have set password \033[0m"
else
userIfSetPasswdOrArray=$(echo $users|sed 's/\n/ /g')
echo -e "\033[31m-[-] user:$(echo $users|sed 's/\n/ /g') should set a password ,rather than empty \033[0m"
fi
# 7.2.2 check if root is the only UID 0 account
local users=$(cat /etc/passwd|awk -F: '($3==0){print $1}')
if [[ $users = 'root' ]]; then
uid0OnlyRootOrArray="true"
echo -e "\033[32m-[+] root is the only account that uid is 0 \033[0m"
else
uid0OnlyRootOrArray=$(echo $users|sed 's/root//g'|sed 's/\n/ /g')
echo -e "\033[31m-[-] $(echo $users|sed 's/root//g'|sed 's/\n/ /g') uid should not be 0 \033[0m"
fi
# 7.2.3 check root PATH integrith
if [ "$(echo $PATH|grep ::)" != "" ]; then
echo -e "\033[31m-[-] Empty Directory in PATH (::) \033[0m"
fi
if [ "$(echo $PATH|grep :$)" != "" ]; then
echo -e "\033[31m-[-] Trailing : in PATH \033[0m"
fi
path=$( echo $PATH|sed -e 's/::/:/' -e 's/:$//' -e 's/:/ /g')
tmpArray1=()
tmpArray2=()
tmpArray3=()
tmpArray4=()
tmpArray5=()
set -- $path
while [[ $1 != "" ]]; do
if [[ $1 = "." ]]; then
echo -e "\033[31m-[-] PATH contains . \033[0m"
tmpArray1+=(".")
shift
continue
fi
if [[ -d $1 ]]; then
local dirperm=$(ls -ldH $1|cut -d" " -f1)
if [[ $(echo $dirperm|cut -c6) != "-" ]]; then
tmpArray2+=($1)
echo -e "\033[31m-[-] Group Write permission should not set on directory $1 \033[0m"
fi
if [[ $(echo $dirperm|cut -c9) != "-" ]]; then
tmpArray3+=($1)
echo -e "\033[31m-[-] Other Write permission should not set on directory $1 \033[0m"
fi
local dirown=$(ls -ldH $1|awk '{print $3}')
if [[ $dirown != "root" ]]; then
tmpArray4+=($1)
echo -e "\033[31m-[-] dir $1's owner is $dirown,should be root \033[0m"
fi
else
tmpArray5+=($1)
echo -e "\033[31m-[-] $1 is not a directory or not exist \033[0m"
fi
shift
done
if [[ ${#tmpArray1[@]} = 0 ]]; then
pathDirIfNotHasDot="true"
else
pathDirIfNotHasDot="false"
fi
pathDirPermissionHasGWArray=${tmpArray2[@]}
pathDirPermissionHasOWArray=${tmpArray2[@]}
pathDirOwnerIsNotRootArray=${tmpArray4[@]}
pathDirDoesNotExistOrNotDirArray=${tmpArray5[@]}
# 7.2.4 check if is all users' home directories exist
#cat /etc/passwd|egrep -v '^(root|halt|sync|shutdown)'|awk -F: '($7 != "/sbin/nologin" && $7 != "/bin/false"){print $1 " " $6}'|while read user dir; do
tmpArray1=()
tmpArray2=()
tmpArray3=()
tmpArray4=()
tmpArray5=()
tmpArray6=()
while read user dir; do
tmpArray1+=($dir)
if [[ ! -d $dir ]]; then
tmpArray2+=("false")
tmpArray3+=("false")
echo -e "\033[31m-[-] the home directory ($dir) of user $user does not exist \033[0m"
else
tmpArray2+=("true")
# 7.2.5 check if users' home directories permissions are 750 or more restrictive
local dirperm=$(ls -ld $dir|cut -d" " -f1)
tmpArray3+=($dirperm)
if [[ $(echo $dirperm |cut -c6) != "-" ]]; then
echo -e "\033[31m-[-] Group Write permission set on the home directory ($dir) of user $user \033[0m"
fi
if [[ $(echo $dirperm |cut -c8) != "-" ]]; then
echo -e "\033[31m-[-] Other Read permission set on the home directory ($dir) of user $user \033[0m"
fi
if [[ $(echo $dirperm |cut -c9) != "-" ]]; then
echo -e "\033[31m-[-] Other Write permission set on the home directory ($dir) of user $user \033[0m"
fi
if [[ $(echo $dirperm |cut -c10) != "-" ]]; then
echo -e "\033[31m-[-] Other Execute permission set on the home directory ($dir) of user $user \033[0m"
fi
# 7.2.6 check if is users own their home directory
local owner=$(stat -L -c "%U" $dir)
if [[ $owner != $user ]]; then
tmpArray4+=("false")
echo -e "\033[31m-[-]The home directory ($dir) of user $user is owned by $owner \033[0m"
else
tmpArray4+=("true")
fi
# 7.2.7 check users' dot files are not group or world writable
local tmpc=0
for file in $dir/.[A-Za-z0-9]*; do
if [[ ! -h $file ]] && [[ -f $file ]]; then
local fileperm=$(ls -ld $file|cut -d" " -f1)
if [[ $(echo $fileperm|cut -c6) != "-" ]]; then
tmpc=$(expr $tmpc + 1)
echo -e "\033[31m-[-] Group Write permission set on file $file \033[0m"
fi
if [[ $(echo $fileperm|cut -c9) != "-" ]]; then
tmpc=$(expr $tmpc + 1)
echo -e "\033[31m-[-] Other Write permission set on file $file \033[0m"
fi
fi
done
if [[ $tmpc = 0 ]]; then
tmpArray5+=("true")
else
tmpArray5+=("false")
fi
# 7.2.8 check if no usrs have .netrc .rhosts .forward file
tmpc=0
if [[ ! -h $dir/.netrc ]] && [[ -f $dir/.netrc ]]; then
tmpc=$(expr $tmpc + 1)
echo -e "\033[31m-[-] .netrc file $dir/.netrc exists \033[0m"
fi
if [[ ! -h $dir/.rhosts ]] && [[ -f $dir/.rhosts ]]; then
tmpc=$(expr $tmpc + 1)
echo -e "\033[31m-[-] .rhosts file $dir/.rhosts exists \033[0m"
fi
if [[ ! -h $dir/.forward ]] && [[ -f $dir/.forward ]]; then
tmpc=$(expr $tmpc + 1)
echo -e "\033[31m-[-] .forward file $dir/.forward exists \033[0m"
fi
if [[ $tmpc = 0 ]]; then
tmpArray6+=("true")
else
tmpArray6+=("false")
fi
fi
done < <(cat /etc/passwd|egrep -v '^(root|halt|sync|shutdown)'|awk -F: '($7 != "/sbin/nologin" && $7 != "/bin/false"){print $1 " " $6}')
userArray=${tmpArray1[@]}
userHomeDirIfExistArray=${tmpArray2[@]}
UserHomeDirPermissionArray=${tmpArray3[@]}
userIfOwnTheirHomeDirArray=${tmpArray4[@]}
userHomeDirIfHasGWorOWDotFileArray=${tmpArray5[@]}
userHomeDirIfHasOtherFileArray=${tmpArray6[@]}
# 7.2.9 check if all groups in /etc/passwd exist in /etc/group
tmpArray=()
for i in $(cut -d: -s -f4 /etc/passwd|sort -u); do
grep -q -P "^.*?:[^:]*:$i" /etc/group
if [[ $? -ne 0 ]]; then
tmpArray+=($i)
echo -e "\033[31m-[-] Group $i is referenced by /etc/passwd but does not exist in /etc/group \033[0m"
fi
done
groupNotExistInetcgroup=${tmpArray[@]}
# 7.2.10 check if every user has a unique UID
#cat /etc/passwd|cut -d":" -f3|sort -n|uniq -c|while read x; do
tmpArray=()
while read x; do
[[ -z $x ]] && break
set - $x
if [[ $1 -gt 1 ]]; then
local users=$(awk -F: '($3==n){print $1}' n=$2 /etc/passwd|xargs)
tmpArray+=($2:$users\;)
echo -e "\033[31m-[-] Duplicate UID $2 : $users \033[0m"
fi
done < <(cat /etc/passwd|cut -d":" -f3|sort -n|uniq -c)
usersIfHasUniqueUIDArray=${tmpArray[@]}
# 7.2.11 check if every group has a unique GID
tmpArray=()
#cat /etc/group|cut -d":" -f3|sort -n|uniq -c|while read x; do
while read x; do
[[ -z $x ]] && break
set - $x
if [[ $1 -gt 1 ]]; then
local groups=$(awk -F: '($3==n){print $1}' n=$2 /etc/group|xargs)
tmpArray+=($2:$groups\;)
echo -e "\033[31m-[-] Duplicate GID $2 : $groups \033[0m"
fi
done < <(cat /etc/group|cut -d":" -f3|sort -n|uniq -c)
groupsIfHasUniqueGIDArray=${tmpArray[@]}
# 7.2.12 check if user name is unique
tmpArray=()
#cat /etc/passwd|cut -d":" -f1|sort -n|uniq -c|while read x; do
while read x; do
[[ -z $x ]] && break
set - $x11
if [[ $1 -gt 1 ]]; then
local uids=$(awk -F: '($1 == n){print $3}' n=$2 /etc/passwd|xargs)
tmpArray+=($2:$uids\;)
echo -e "\033[31m-[-] Duplicate user name $2 : $uids \033[0m"
fi
done < <(cat /etc/passwd|cut -d":" -f1|sort -n|uniq -c)
usersIfHasUniqueNameArray=${tmpArray[@]}
# 7.2.13 check if group name is unique
tmpArray=()
#cat /etc/group|cut -d":" -f1|sort -n|uniq -c|while read x; do
while read x; do
[[ -z $x ]] && break
set - $x11
if [[ $1 -gt 1 ]]; then
local gids=$(awk -F: '($1 == n){print $3}' n=$2 /etc/group|xargs)
tmpArray+=($2:$gids\;)
echo -e "\033[31m-[-] Duplicate group name $2 : $gids \033[0m"
fi
done < <(cat /etc/group|cut -d":" -f1|sort -n|uniq -c)
groupsIfHasUniqueNameArray=${tmpArray[@]}
usergroup_config_info={\"userIfSetPasswdOrArray\":\"$userIfSetPasswdOrArray\",\"uid0OnlyRootOrArray\":\"$uid0OnlyRootOrArray\",\"pathDirIfNotHasDot\":\"$pathDirIfNotHasDot\",\"pathDirPermissionHasGWArray\":\"$pathDirPermissionHasGWArray\",\"pathDirPermissionHasOWArray\":\"$pathDirPermissionHasOWArray\",\"pathDirOwnerIsNotRootArray\":\"$pathDirOwnerIsNotRootArray\",\"pathDirDoesNotExistOrNotDirArray\":\"$pathDirDoesNotExistOrNotDirArray\",\"userArray\":\"$userArray\",\"userHomeDirIfExistArray\":\"$userHomeDirIfExistArray\",\"UserHomeDirPermissionArray\":\"$UserHomeDirPermissionArray\",\"userIfOwnTheirHomeDirArray\":\"$userIfOwnTheirHomeDirArray\",\"userHomeDirIfHasGWorOWDotFileArray\":\"$userHomeDirIfHasGWorOWDotFileArray\",\"userHomeDirIfHasOtherFileArray\":\"$userHomeDirIfHasOtherFileArray\",\"groupNotExistInetcgroup\":\"$groupNotExistInetcgroup\",\"usersIfHasUniqueUIDArray\":\"$usersIfHasUniqueUIDArray\",\"groupsIfHasUniqueGIDArray\":\"$groupsIfHasUniqueGIDArray\"}
system_check_res={\"file_permission_info\":$file_permission_info,\"usergroup_config_info\":$usergroup_config_info}
}
echo """
==================================
| Linux 基线检查工具 |
| author:JC0o0l |
| version:2.0 |
==================================
"""
get_basic_info
init_check
service_check
network_check
auditd_check
log_check
authentication_check
system_check
if [[ -z $authentication_check_res ]]; then
authentication_check_res={}
fi
if [[ -z $system_check_res ]]; then
system_check_res={}
fi
check_result={\"basic_info\":$basic_info,\"init_check_res\":$init_check_res,\"service_check\":$service_check_res,\"network_check_res\":$network_check_res,\"auditd_check_res\":$auditd_check_res,\"log_check_res\":$log_check_res,\"authentication_check_res\":$authentication_check_res,\"system_check_res\":$system_check_res}
curl -X POST "http://192.168.3.24:8888/baseline/show/" -H "accept:application/json" -H "content-type:application/json" -d "$check_result" 1>/dev/null 2>/dev/null
echo $check_result|jq
================================================
FILE: baseline_check_v2.2_JC0o0l.sh
================================================
#!/bin/bash
function get_ip_info {
local ipList=`ifconfig | grep inet |grep -v inet6|grep -v 127|sed 's/^[ ]*//g'|cut -d" " -f2`
echo $ipList
}
function get_basic_info {
echo [·] collect basic info
scanTime=$(date "+%Y-%m-%d %H:%M:%S")
hostname=`hostname`
macaddr=$(echo $(ifconfig|grep "ether"|sed 's/^[ ]*//g'|cut -d" " -f2)|sed 's/ /;/g')
ipList=$(get_ip_info|sed 's/ /;/g')
kernelVersion=`uname -r`
if [[ $(cat /proc/version) =~ "Red Hat" ]]; then
osVersion=`cat /etc/redhat-release|cut -f1,4 -d" "`
fi
basic_info={\"scanTime\":\"$scanTime\",\"hostname\":\"$hostname\",\"macaddr\":\"$macaddr\",\"ipList\":\"$ipList\",\"kernelVersion\":\"$kernelVersion\",\"osVersion\":\"$osVersion\"}
echo $basic_info
}
function init_check {
# 1. init configuration
echo [·] check init configuration
# 1.1 file system configuration
# 1.1.1 /tmp separate mount
local tmpIfSeparate #=""
local tmpIfNoexec #=""
local tmpIfNosuid #=""
local res=$(mount|grep "/tmp ")
if [[ -z $res ]]; then
echo -e "\033[31m-[-] /tmp/ not mounted on separate dick\033[0m"
tmpIfSeparate="False"
tmpIfNoexec="False"
tmpIfNosuid="False"
else
tmpIfSeparate="True"
tmpIfNoexec="True"
tmpIfNosuid="True"
fi
if [[ $tmpIfSeparate == "True" ]]; then
#mount|grep "/sys/kernel/debug " |while read res;do
while read res;do
#echo "mount | grep /sys --result-->" $res
# 1.1.2 /tmp noexec nosuid
local diskPart=$(echo $res|cut -d" " -f3)
if [[ ! $res =~ "noexec" ]];then
echo -e "\033[31m-[-] no noexec option on $diskPart partion\033[0m"
tmpIfNoexec="False"
if [[ ! $res =~ "nosuid" ]];then
echo -e "\033[31m-[-] no nosuid option on $diskPart partion\033[0m"
tmpIfNosuid="False"
fi
elif [[ ! $res =~ "nosuid" ]];then
echo -e "\033[31m-[-] no nosuid option on $diskPart partion\033[0m"
tmpIfNosuid="False"
fi
done < <(mount | grep "/tmp ")
fi
tmp_partition_info={\"tmpIfSeparate\":\"$tmpIfSeparate\",\"tmpIfNoexec\":\"$tmpIfNoexec\",\"tmpIfNosuid\":\"$tmpIfNosuid\"}
#echo $tmp_partition_info
# 1.2 secure boot configuration
if [[ -f /boot/grub2/grub.cfg ]];then
grubcfgIfExist="True"
grubcfgPermission="0600"
grubcfgIfSetPasswd="True"
else
grubcfgIfExist="False"
grubcfgPermission="0000"
grubcfgIfSetPasswd="False"
fi
if [[ $grubcfgIfExist == "True" ]]; then
# 1.2.1 /boot/grub2/grub.cfg permission /boot/grub2/user.cfg permission 0600 root:root
res=$(stat /boot/grub2/grub.cfg |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4)
grubcfgPermission=$(echo $res|cut -d"/" -f1)
if [[ $(echo $res|cut -d"/" -f1) = "0600" ]]; then
echo -e "\033[32m-[+] /boot/grub2/grub.cfg permission is 0600 \033[0m"
else
echo -e "\033[31m-[-] /boot/grub2/grub.cfg permission is not 0600 \033[0m"
fi
# 1.2.2 Ensure bootloader password is set
res=$(grep "^GRUB2 PASSWORD" /boot/grub2/grub.cfg)
if [[ -n $res ]]; then
echo -e "\033[32m-[+] /boot/grub2/grub.cfg seted password \033[0m"
grubcfgIfSetPasswd="True"
else
echo -e "\033[31m-[-] /boot/grub2/grub.cfg not set password \033[0m"
grubcfgIfSetPasswd="False"
fi
fi
# 1.2.3 single user mode need authentication
if [[ -f /usr/lib/systemd/system/rescue.service ]] && [[ -f /usr/lib/systemd/system/emergency.service ]]; then
res1=`grep /sbin/sulogin /usr/lib/systemd/system/rescue.service`
res2=`grep /sbin/sulogin /usr/lib/systemd/system/emergency.service`
if [[ $res1 = "ExecStart=-/bin/sh -c \"/usr/sbin/sulogin; /usr/bin/systemctl --fail --no-block default\"" ]] && [[ $res2 = "ExecStart=-/bin/sh -c \"/usr/sbin/sulogin; /usr/bin/systemctl --fail --no-block default\"" ]]; then
echo -e "\033[32m-[+] single user mode need authentication \033[0m"
singleUserModeIfNeedAuth="True"
else
echo -e "\033[31m-[+] single user mode does not need authentication \033[0m"
singleUserModeIfNeedAuth="False"
fi
fi
# 1.3 Mantary Access Control
# 1.3.1 ensure the SELinux state is enforcing
if [[ -f /etc/selinux/config ]]; then
local num=$(sestatus|grep -c enforcing)
if [[ $num -gt 1 ]]; then
echo -e "\033[32m-[+] SELinux state is enforcing \033[0m"
selinuxStateIfEnforcing="True"
else
echo -e "\033[31m-[-] SELinux state is not enforcing \033[0m"
selinuxStateIfEnforcing="False"
fi
fi
# 1.3.2 ensure selinux policy is configured
if [[ -f /etc/selinux/config ]]; then
res=$(sestatus|grep targeted)
if [[ -n $res ]]; then
echo -e "\033[32m-[+] SELinux policy is configured \033[0m"
selinuxPolicyIfConfigured="True"
else
echo -e "\033[31m-[-] SELinux policy is not configure to targeted \033[0m"
selinuxPolicyIfConfigured="False"
fi
fi
boot_secure_info={\"grubcfgIfExist\":\"$grubcfgIfExist\",\"grubcfgPermission\":\"$grubcfgPermission\",\"grubcfgIfSetPasswd\":\"$grubcfgIfSetPasswd\",\"singleUserModeIfNeedAuth\":\"$singleUserModeIfNeedAuth\",\"selinuxStateIfEnforcing\":\"$selinuxStateIfEnforcing\",\"selinuxPolicyIfConfigured\":\"$selinuxPolicyIfConfigured\"}
#echo $boot_secure_info
init_check_res={\"tmp_partition_info\":$tmp_partition_info,\"boot_secure_info\":$boot_secure_info}
}
function service_check {
# 2. service configuration
echo [·] check service configuration
# 2.1 time sync
# 2.1.1 time sync service is installed
if $(rpm -q ntp 1>/dev/null||rpm -q chrony 1>/dev/null) ; then
if $(rpm -q ntp 1>/dev/null) ; then
if [[ -f /etc/ntp.conf ]]; then
local res=$(egrep "^(server|pool)" /etc/ntp.conf)
if [[ -n $res ]]; then
echo -e "\033[32m-[+] remote ntp server is configured \033[0m"
timeSyncServerIfConfigured="True"
else
echo -e "\033[31m-[-] remote ntp server is not configured \033[0m"
timeSyncServerIfConfigured="False"
fi
fi
fi
if $(rpm -q chrony 1>/dev/null); then
if [[ -f /etc/chrony.conf ]]; then
local res=$(egrep "^(server|pool)" /etc/chrony.conf)
if [[ -n $res ]]; then
echo -e "\033[32m-[+] remote chrony server is configured \033[0m"
timeSyncServerIfConfigured="True"
else
echo -e "\033[31m-[-] remote chrony server is not configured \033[0m"
timeSyncServerIfConfigured="False"
fi
fi
fi
fi
# 2.1.2 x-window
local res=$(rpm -qa xorg-x11*)
if [[ -z $res ]]; then
echo -e "\033[32m-[+] x11-windows is not installed \033[0m"
x11windowIfNotInstalled="True"
else
echo -e "\033[31m-[-] x11-windows is installed \033[0m"
x11windowIfNotInstalled="False"
fi
service_check_res={\"timeSyncServerIfConfigured\":\"$timeSyncServerIfConfigured\",\"x11windowIfNotInstalled\":\"$x11windowIfNotInstalled\"}
}
function network_check {
# 3. network configuration
echo [·] check network configuration
# 3.1 hosts file configuration
# 3.1.1 check /etc/hosts.deny file
if [[ -f /etc/hosts.deny ]]; then
hostsDenyFileIfExist="True"
echo -e "\033[32m-[+] file /etc/hosts.deny exists \033[0m"
local res=$(stat /etc/hosts.deny |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4)
hostsDenyFilePermission=$(echo $res|cut -d"/" -f1)
if [[ $(echo $res|cut -d"/" -f1) = "0644" ]];then
echo -e "\033[32m-[+] file /etc/hosts.deny permission is 0644 \033[0m"
else
echo -e "\033[31m-[-] file /etc/hosts.deny permission is not 0644 \033[0m"
fi
local res=$(egrep "^[^#].+" /etc/hosts.deny)
if [[ -n $res ]]; then
hostsDenyFileIfConfigured="True"
echo -e "\033[32m-[+] file /etc/hosts.deny is configured \033[0m"
else
hostsDenyFileIfConfigured="False"
echo -e "\033[31m-[-] file /etc/hosts.deny is not configured \033[0m"
fi
else
hostsDenyFileIfExist="False"
echo -e "\033[31m-[-] file /etc/hosts.deny does not exists \033[0m"
fi
# 3.1.2 check /etc/hosts.allow file
if [[ -f /etc/hosts.allow ]]; then
hostsAllowFileIfExist="True"
echo -e "\033[32m-[+] file /etc/hosts.allow exists \033[0m"
local res=`stat /etc/hosts.allow |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4`
hostsAllowFilePermission=$(echo $res|cut -d"/" -f1)
if [[ $(echo $res|cut -d"/" -f1) = "0644" ]];then
echo -e "\033[32m-[+] file /etc/hosts.allow permission is 0644 \033[0m"
else
echo -e "\033[31m-[-] file /etc/hosts.allow permission is not 0644 \033[0m"
fi
local res=$(egrep "^[^#].+" /etc/hosts.deny)
if [[ -n $res ]]; then
hostsAllowFileIfConfigured="True"
echo -e "\033[32m-[+] file /etc/hosts.allow is configured \033[0m"
else
hostsAllowFileIfConfigured="False"
echo -e "\033[31m-[-] file /etc/hosts.allow is not configured \033[0m"
fi
else
hostsAllowFileIfExist="False"
echo -e "\033[31m-[-] file /etc/hosts.allow does not exists \033[0m"
fi
# 3.2 firewall configuration
# 3.2.1 ensure iptables is installed
if $(rpm -q iptables 1>/dev/null); then
iptablesIfInstalled="True"
echo -e "\033[32m-[+] iptables is installed \033[0m"
# 3.2.2 ensure INPUT OUTPUT chain policy is DROP
#iptables -L|grep policy|while read x;do
while read x;do
if [[ $x =~ "INPUT" ]] && [[ $x =~ "DROP" ]]; then
iptablesInputPolicyIfDrop="True"
echo -e "\033[32m-[+] INPUT chain policy is DROP \033[0m"
elif [[ $x =~ "INPUT" ]] && [[ ! $x =~ "DROP" ]]; then
iptablesInputPolicyIfDrop="False"
echo -e "\033[31m-[-] INPUT chain policy is not DROP \033[0m"
fi
if [[ $x =~ "OUTPUT" ]] && [[ $x =~ "DROP" ]]; then
iptablesOutputPolicyIfDrop="True"
echo -e "\033[32m-[+] OUTPUT chain policy is DROP \033[0m"
elif [[ $x =~ "OUTPUT" ]] && [[ ! $x =~ "DROP" ]]; then
iptablesOutputPolicyIfDrop="False"
echo -e "\033[31m-[-] OUTPUT chain policy is not DROP \033[0m"
fi
done < <(iptables -L|grep policy)
else
iptablesIfInstalled="False"
echo -e "\033[31m-[-] iptables is not installed \033[0m"
fi
network_check_res={\"hostsAllowFileIfExist\":\"$hostsAllowFileIfExist\",\"hostsAllowFilePermission\":\"$hostsAllowFilePermission\",\"hostsAllowFileIfConfigured\":\"$hostsAllowFileIfConfigured\",\"hostsDenyFileIfExist\":\"$hostsDenyFileIfExist\",\"hostsDenyFilePermission\":\"$hostsDenyFilePermission\",\"hostsDenyFileIfConfigured\":\"$hostsDenyFileIfConfigured\",\"iptablesIfInstalled\":\"$iptablesIfInstalled\",\"iptablesInputPolicyIfDrop\":\"$iptablesInputPolicyIfDrop\",\"iptablesOutputPolicyIfDrop\":\"$iptablesOutputPolicyIfDrop\"}
}
function auditd_check {
# 4. auditd configuration
echo [·] check auditd configuration
# 4.1 ensure auditd is enabled
echo "-[·] check auditd if is enabled"
if [[ $(systemctl is-enabled auditd) = "enabled" ]]; then
echo -e "\033[32m-[+] auditd is enabled \033[0m"
auditdIfEnabled="True"
else
auditdIfEnabled="False"
echo -e "\033[31m-[-] auditd is not enabled \033[0m"
fi
# 4.2 some settings in /etc/audit/auditd.conf
echo "-[·] settings in /etc/audit/auditd.conf"
if [[ -f /etc/audit/auditd.conf ]]; then
auditdconfIfExist="True"
maxLogFile=$(grep "^max_log_file[[:blank:]]=" /etc/audit/auditd.conf|sed "s/ //g"|cut -d"=" -f 2)
maxLogFileAction=$(grep "^max_log_file_action" /etc/audit/auditd.conf|sed "s/ //g"|cut -d"=" -f 2)
spaceLeftAction=$(grep "^space_left_action" /etc/audit/auditd.conf|sed "s/ //g"|cut -d"=" -f 2)
numLogs=$(grep "^num_logs" /etc/audit/auditd.conf|sed "s/ //g"|cut -d"=" -f 2)
if [[ -n $maxLogFile ]]; then
auditdIfSetMaxLogFile=$maxLogFile
echo -e "\033[32m-[+] max_log_file size is ${maxLogFile} M \033[0m"
else
auditdIfSetMaxLogFile="False"
echo -e "\033[31m-[-] max_log_file size is not setted \033[0m"
fi
if [[ -n $maxLogFileAction ]]; then
auditdIfSetMaxLogFileAction="$maxLogFileAction"
echo -e "\033[32m-[+] max_log_file_action is ${maxLogFileAction}\033[0m"
else
auditdIfSetMaxLogFileAction="False"
echo -e "\033[31m-[-] max_log_file_action is not setted \033[0m"
fi
if [[ -n $spaceLeftAction ]]; then
auditdIfSetSpaceLeftAction="$spaceLeftAction"
echo -e "\033[32m-[+] space_left_action is ${spaceLeftAction}\033[0m"
else
auditdIfSetSpaceLeftAction="False"
echo -e "\033[31m-[-] space_left_action is not setted \033[0m"
fi
if [[ -n $numLogs ]]; then
auditdIfSetNumLogs="$numLogs"
echo -e "\033[32m-[+] the num of logs is ${numLogs} \033[0m"
else
auditdIfSetNumLogs="False"
echo -e "\033[31m-[-] num_logs is not setted \033[0m"
fi
else
auditdconfIfExist="False"
fi
auditd_config_info={\"auditdIfEnabled\":\"$auditdIfEnabled\",\"auditdconfIfExist\":\"$auditdconfIfExist\",\"auditdIfSetMaxLogFile\":\"$auditdIfSetMaxLogFile\",\"auditdIfSetMaxLogFileAction\":\"$auditdIfSetMaxLogFileAction\",\"auditdIfSetSpaceLeftAction\":\"$auditdIfSetSpaceLeftAction\",\"auditdIfSetNumLogs\":\"$auditdIfSetNumLogs\"}
#echo $auditd_config_info
# 4.3 rules in /etc/audit/audit.rules
# arch 64
echo "-[·] time-change"
if [[ -f /etc/audit/audit.rules ]]; then
auditdRulesIfExist="True"
echo -e "\033[32m-[+] /etc/audit/audit.rules is exist \033[0m"
if [[ ! -n $(grep time /etc/audit/audit.rules) ]]; then
auditdRulesIfNotNull="False"
echo -e "\033[31m-[-] not set rule about audit the change of date and time \033[0m"
else
auditdRulesIfNotNull="True"
# 4.3.1 time-change
local timeChangeList=$(egrep "(stime|clock_settime|adjtimex|settimeofday|/etc/localtime)" /etc/audit/audit.rules|wc -l)
if [[ ${timeChangeList} -gt 3 ]]; then
auditdIfCheckTimechange="True"
echo -e "\033[32m-[+] audith the change of date and time \033[0m"
elif [[ ${timeChangeList} -gt 1 ]]; then
auditdIfCheckTimechange="False"
echo -e "\033[31m-[-] not fully set rule about audit the change of date and time \033[0m"
else
auditdIfCheckTimechange="False"
echo -e "\033[31m-[-] not set rule about audit the change of date and time \033[0m"
fi
# 4.3.2 user and group change
echo "-[·] user and group change"
local keyArray=("/etc/passwd" "/etc/group" "/etc/gshadow" "/etc/shadow" "/etc/security/opasswd")
tmpArray1=()
tmpArray2=()
for i in ${keyArray[@]} ; do
if [[ -n $(grep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i\;)
echo -e "\033[32m-[+] audit the change of $i \033[0m"
else
tmpArray2+=($i\;)
echo -e "\033[31m-[-] not audit the change of $i \033[0m"
fi
done
auditdRulesCheckedUserandgroupfile=$(echo ${tmpArray1[@]}|sed 's/ //g')
auditdRulesNotCheckedUserandgroupfile=$(echo ${tmpArray2[@]}|sed 's/ //g')
# 4.3.3 system's network environment change
echo "-[·] system's network environment change"
local keyArray=("/etc/issue" "/etc/issue.net" "/etc/hosts" "/etc/sysconfig/network" "/etc/sysconfig/network-scripts/" )
tmpArray1=()
tmpArray2=()
for i in ${keyArray[@]} ; do
if [[ -n $(grep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i\;)
echo -e "\033[32m-[+] audit the change of $i \033[0m"
else
tmpArray2+=($i\;)
echo -e "\033[31m-[-] not audit the change of $i \033[0m"
fi
done
local keyArray=("sethostname" "setdomainname")
for i in ${keyArray[@]} ; do
if [[ -n $(grep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i\;)
echo -e "\033[32m-[+] audit the use of syscall $i \033[0m"
else
echo -e "\033[31m-[-] not audit the use of syscall $i \033[0m"
tmpArray2+=($i\;)
fi
done
auditdRulesCheckedNetworkenv=$(echo ${tmpArray1[@]}|sed 's/ //g')
auditdRulesNotCheckedNetworkenv=$(echo ${tmpArray2[@]}|sed 's/ //g')
# 4.3.4 system's Mandatory Access Controls change
echo "-[·] system's Mandatory Access Controls change"
local keyArray=("/etc/selinux" "/usr/share/selinux")
tmpArray1=()
tmpArray2=()
for i in ${keyArray[@]} ; do
if [[ -n $(grep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i\;)
echo -e "\033[32m-[+] audit the change of $i \033[0m"
else
tmpArray2+=($i\;)
echo -e "\033[31m-[-] not audit the change of $i \033[0m"
fi
done
auditdRulesCheckedMACchange=$(echo ${tmpArray1[@]}|sed 's/ //g')
auditdRulesNotCheckedMACchange=$(echo ${tmpArray2[@]}|sed 's/ //g')
# 4.3.5 audit events of login and logout
echo "-[·] audit events of login and logout"
local keyArray=("/var/log/lastlog" "/var/run/faillock/")
tmpArray1=()
tmpArray2=()
for i in ${keyArray[@]} ; do
if [[ -n $(grep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i\;)
echo -e "\033[32m-[+] audit the change of $i \033[0m"
else
tmpArray2+=($i\;)
echo -e "\033[31m-[-] not audit the change of $i \033[0m"
fi
done
auditdRulesCheckedLoginoutEvents=$(echo ${tmpArray1[@]}|sed 's/ //g')
auditdRulesNotCheckedLoginoutEvents=$(echo ${tmpArray2[@]}|sed 's/ //g')
# 4.3.6 audit the change of discretionary access control
echo "-[·] audit the change of discretionary access control"
local keyArray=("(chmod|fchmod|fchmodat)" "(chown|fchown|fchownat)" "(setxattr|lsetxattr|removexattr)" "(lock|time)")
tmpArray1=()
tmpArray2=()
for i in ${keyArray[@]} ; do
if [[ -n $(egrep $i /etc/audit/audit.rules) ]]; then
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g')
echo -e "\033[32m-[+] audit the use of systemcall $i \033[0m"
tmpArray1+=($i\;)
else
tmpArray2+=($i\;)
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g')
echo -e "\033[31m-[-] not audit the use of systemcall $i \033[0m"
fi
done
auditdRulesCheckedDACChangeSyscall=$(echo ${tmpArray1[@]}|sed 's/ //g')
auditdRulesNotCheckedDACChangeSyscall=$(echo ${tmpArray2[@]}|sed 's/ //g')
# 4.3.7 audit the events of unsuccessful unauthorized file access attempts
echo "-[·] audit the events of unsuccessful unauthorized file access attempts"
local keyArray=("(create|open|openat|truncate|ftruncate).*?exit=-EACCESS" "(create|open|openat|truncate|ftruncate).*?exit=-EPERM" )
tmpArray1=()
tmpArray2=()
for i in ${keyArray[@]} ; do
if [[ -n $(egrep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i\;)
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[32m-[+] audit the use of systemcall $i \033[0m"
else
tmpArray2+=($i\;)
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[31m-[-] not audit the use of systemcall $i \033[0m"
fi
done
auditdRulesCheckedFileAccessAttemptSyscall=$(echo ${tmpArray1[@]}|sed 's/ //g')
auditdRulesNotCheckedFileAccessAttemptSyscall=$(echo ${tmpArray2[@]}|sed 's/ //g')
# 4.3.8 audit the use of privileged commands
echo "-[·] audit the use of privileged commands"
#find / -name "passwd"
local res=$(find / -xdev \( -perm -4000 -o -perm -2000 \) -type f) #|awk '{print "-a always,exit -F path="$1"-F perm=x -F auid>=1000 -F auid!=4294967295 -k privileged"}'
tmpArray1=()
tmpArray2=()
for i in ${res[@]} ; do
if [[ -n $(egrep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i\;)
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[32m-[+] audit the use of command $i \033[0m"
else
tmpArray2+=($i\;)
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[31m-[-] not audit the use of command $i \033[0m"
fi
done
auditdRulesCheckedPrivilegedCommand=$(echo ${tmpArray1[@]}|sed 's/ //g')
auditdRulesNotCheckedPrivilegedCommand=$(echo ${tmpArray2[@]}|sed 's/ //g')
# 4.3.9 audit the change of file sudoer
echo "-[·] audit the change of file sudoer"
local keyArray=("/etc/sudoers" "/etc/sudoers.d/")
tmpArray1=()
tmpArray2=()
for i in ${keyArray[@]} ; do
if [[ -n $(egrep $i /etc/audit/audit.rules) ]]; then
tmpArray1+=($i\;)
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[32m-[+] audit the change of file $i \033[0m"
else
tmpArray2+=($i\;)
i=$(echo $i|sed 's/|/ /g'|sed 's/(//g'|sed 's/)//g'|sed 's/\.\*?/ /g')
echo -e "\033[31m-[-] not audit the change of file $i \033[0m"
fi
done
auditdRulesCheckedSudoerFile=$(echo ${tmpArray1[@]}|sed 's/ //g')
auditdRulesNotCheckedSudoerFile=$(echo ${tmpArray2[@]}|sed 's/ //g')
# 4.3.10 check the audit configuration is setted to immutable unless reboot the server
echo "-[·] check the audit configuration is setted to immutable unless reboot the server"
local res=$(grep "^\s*[^#]" /etc/audit/audit.rules|tail -1|egrep "-e.*?2")
if [[ -n $res ]]; then
auditdRulesIfImmutable="True"
echo -e "\033[32m-[+] auditd setted -e 2 \033[0m"
else
auditdRulesIfImmutable="False"
echo -e "\033[31m-[-] auditd not setted -e 2 \033[0m"
fi
fi
else
auditdRulesIfExist="False"
echo -e "\033[32m-[+] /etc/audit/audit.rules is not exist \033[0m"
fi
auditd_rules_info={\"auditdRulesIfExist\":\"$auditdRulesIfExist\",\"auditdRulesIfNotNull\":\"$auditdRulesIfNotNull\",\"auditdIfCheckTimechange\":\"$auditdIfCheckTimechange\",\"auditdRulesCheckedUserandgroupfile\":\"$auditdRulesCheckedUserandgroupfile\",\"auditdRulesNotCheckedUserandgroupfile\":\"$auditdRulesNotCheckedUserandgroupfile\",\"auditdRulesCheckedNetworkenv\":\"$auditdRulesCheckedNetworkenv\",\"auditdRulesNotCheckedNetworkenv\":\"$auditdRulesNotCheckedNetworkenv\",\"auditdRulesCheckedMACchange\":\"$auditdRulesCheckedMACchange\",\"auditdRulesNotCheckedMACchange\":\"$auditdRulesNotCheckedMACchange\",\"auditdRulesCheckedLoginoutEvents\":\"$auditdRulesCheckedLoginoutEvents\",\"auditdRulesNotCheckedLoginoutEvents\":\"$auditdRulesNotCheckedLoginoutEvents\",\"auditdRulesCheckedDACChangeSyscall\":\"$auditdRulesCheckedDACChangeSyscall\",\"auditdRulesNotCheckedDACChangeSyscall\":\"$auditdRulesNotCheckedDACChangeSyscall\",\"auditdRulesCheckedFileAccessAttemptSyscall\":\"$auditdRulesCheckedFileAccessAttemptSyscall\",\"auditdRulesNotCheckedFileAccessAttemptSyscall\":\"$auditdRulesNotCheckedFileAccessAttemptSyscall\",\"auditdRulesCheckedPrivilegedCommand\":\"$auditdRulesCheckedPrivilegedCommand\",\"auditdRulesNotCheckedPrivilegedCommand\":\"$auditdRulesNotCheckedPrivilegedCommand\",\"auditdRulesCheckedSudoerFile\":\"$auditdRulesCheckedSudoerFile\",\"auditdRulesNotCheckedSudoerFile\":\"$auditdRulesNotCheckedSudoerFile\",\"auditdRulesIfImmutable\":\"$auditdRulesIfImmutable\"}
auditd_check_res={\"auditd_config_info\":$auditd_config_info,\"auditd_rules_info\":$auditd_rules_info}
}
function log_check {
echo "[·] check log configuration"
# 5.1 ensure auditd is enabled
echo "-[·] check rsyslog if is enabled"
if [[ $(systemctl is-enabled rsyslog) = "enabled" ]]; then
rsyslogIfEnabled="True"
echo -e "\033[32m-[+] rsyslog is enabled \033[0m"
else
rsyslogIfEnabled="False"
echo -e "\033[31m-[-] rsyslog is not enabled \033[0m"
fi
log_check_res={\"rsyslogIfEnabled\":\"$rsyslogIfEnabled\"}
}
function authentication_check {
echo "[·] check cron ssh pam and env configuration"
# 6.1 cron configuration
echo "-[·] check cron configuration"
# 6.1.1 check cron service is enabled
echo "-[·] check crond if is enabled"
if [[ $(systemctl is-enabled crond) = "enabled" ]]; then
echo -e "\033[32m-[+] crond is enabled \033[0m"
crondIfEnabled="True"
else
crondIfEnabled="False"
echo -e "\033[31m-[-] crond is not enabled \033[0m"
fi
# 6.1.2 check cron's configuration file permission
echo "-[·] check cron's configuration file permission"
local keyArray=("/etc/crontab" "/etc/cron.hourly" "/etc/cron.daily" "/etc/cron.weekly" "/etc/cron.monthly" "/etc/cron.d")
crondConfigFilenameArray=$(echo ${keyArray[@]}|sed 's/ /;/g')
tmpArray=()
for i in ${keyArray[@]} ; do
local res=$(stat $i |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4|cut -d"/" -f1)
tmpArray+=($res\;)
if [[ $res = "0600" ]] || [[ $res = "0700" ]]; then
echo -e "\033[32m-[+] file $i's permission is $res \033[0m"
else
echo -e "\033[31m-[-] file $i's permission is $res ,not 0600 or 0700 \033[0m"
fi
done
crondConfigFilePermissionArray=$(echo ${tmpArray[@]}|sed 's/ //g')
# 6.1.3 check cron.allow cron.deny permission and owner
echo "-[·] check cron.allow cron.deny configuration file permission"
local keyArray=("/etc/cron.allow" "/etc/cron.deny")
crondallowdenyFilenameArray=$(echo ${keyArray[@]}|sed 's/ /;/g')
tmpArray1=()
tmpArray2=()
tmpArray3=()
for i in ${keyArray[@]} ; do
if [[ ! -f $i ]]; then
tmpArray1+=("False;")
tmpArray2+=("False;")
tmpArray3+=("False;")
echo -e "\033[31m-[-] file $i not exist \033[0m"
continue
else
tmpArray1+=("True;")
fi
local res1=$(stat $i |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4|cut -d"/" -f1)
tmpArray2+=($res1\;)
local res2=$(stat $i |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f3,4|sed 's/)//g'|cut -d" " -f3,6)
tmpArray3+=($res2\;)
if [[ $res1 = "0600" ]] || [[ $res1 = "0700" ]]; then
echo -e "\033[32m-[+] file $i's permission is $res \033[0m"
else
echo -e "\033[31m-[-] file $i's permission is $res ,not 0600 or 0700 \033[0m"
fi
if [[ $res2 = "root root" ]]; then
echo -e "\033[32m-[+] file $i's owner is $res2 \033[0m"
else
echo -e "\033[31m-[-] file $i's owner is not root \033[0m"
fi
done
crondallowdenyFileIfExistArray=$(echo ${tmpArray1[@]}|sed 's/ //g')
crondallowdenyFilePermissionArray=$(echo ${tmpArray2[@]}|sed 's/ //g')
crondallowdenyFileOwnerArray=$(echo ${tmpArray3[@]}|sed 's/; /;/g')
crond_config_info={\"crondIfEnabled\":\"$crondIfEnabled\",\"crondConfigFilenameArray\":\"$crondConfigFilenameArray\",\"crondConfigFilePermissionArray\":\"$crondConfigFilePermissionArray\",\"crondallowdenyFilenameArray\":\"$crondallowdenyFilenameArray\",\"crondallowdenyFileIfExistArray\":\"$crondallowdenyFileIfExistArray\",\"crondallowdenyFilePermissionArray\":\"$crondallowdenyFilePermissionArray\",\"crondallowdenyFileOwnerArray\":\"$crondallowdenyFileOwnerArray\"}
# 6.2 SSH configuration
echo "-[·] check ssh configuration"
if [[ $(systemctl is-enabled sshd) = "enabled" ]]; then
sshdIfEnabled="True"
# 6.2.1 /etc/ssh/sshd_config permission 0600
local file="/etc/ssh/sshd_config"
local res=$(stat $file |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4|cut -d"/" -f1)
if [[ $res = "0600" ]]; then
sshdConfigFilePermission=$res
echo -e "\033[32m-[+] file $file's access permission is $res \033[0m"
else
sshdConfigFilePermission="False"
echo -e "\033[3-m-[-] file $file's access permission is $res \033[0m"
fi
# 6.2.2 check ssh x11 forwarding if is disabled
local res=$(grep "^X11Forwaring" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep no) ]]; then
sshdIfDisableX11forwarding="True"
echo -e "\033[32m-[+] X11Forwarding no \033[0m"
else
sshdIfDisableX11forwarding="False"
echo -e "\033[31m-[-] not set X11Forwarding no \033[0m"
fi
# 6.2.3 check ssh MaxAUTHTries if is 4
local res=$(grep "^MaxAuthTries" /etc/ssh/sshd_config)
if [[ -n $res ]]; then
sshdIfSetMaxAuthTries=$(echo $res|sed -r 's/([^1234567890]*)([[:digit:]]+)/\2/')
echo -e "\033[32m-[+] $res \033[0m"
else
sshdIfSetMaxAuthTries="False"
echo -e "\033[31m-[-] not set MaxAuthTries \033[0m"
fi
# 6.2.4 check ssh IgnoreRhosts if is enabled
local res=$(grep "^IgnoreRhosts" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep yes) ]]; then
sshdIfEnableIgnoreRhosts="True"
echo -e "\033[32m-[+] IgnoreRhosts yes \033[0m"
else
sshdIfEnableIgnoreRhosts="False"
echo -e "\033[31m-[-] not set IgnoreRhosts no\033[0m"
fi
# 6.2.5 check ssh HostbasedAuthentication if is disabled
local res=$(grep "^HostbasedAuthentication" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep no) ]]; then
sshdIfDisableHostbasedAuthentication="True"
echo -e "\033[32m-[+] HostbasedAuthentication no \033[0m"
else
sshdIfDisableHostbasedAuthentication="False"
echo -e "\033[31m-[-] not set HostbasedAuthentication no\033[0m"
fi
# 6.2.6 check ssh root login if is diabled
local res=$(grep "^PermitRootLogin" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep no) ]]; then
sshdIfDisablePermitRootLogin="True"
echo -e "\033[32m-[+] PermitRootLogin no \033[0m"
else
sshdIfDisablePermitRootLogin="False"
echo -e "\033[31m-[-] not set PermitRootLogin no\033[0m"
fi
# 6.2.7 check ssh PermitEmptyPasswords if is diabled
local res=$(grep "^PermitEmptyPasswords" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep no) ]]; then
sshdIfDisablePermitEmptyPasswords="True"
echo -e "\033[32m-[+] PermitEmptyPasswords no \033[0m"
else
sshdIfDisablePermitEmptyPasswords="False"
echo -e "\033[31m-[-] not set PermitEmptyPasswords no\033[0m"
fi
# 6.2.8 check ssh PermitUserEnvironment if is diabled
local res=$(grep "^PermitUserEnvironment" /etc/ssh/sshd_config)
if [[ -n $(echo $res|grep no) ]]; then
sshdIfDisablePermitUserEnvironment="True"
echo -e "\033[32m-[+] PermitUserEnvironment no \033[0m"
else
sshdIfDisablePermitUserEnvironment="False"
echo -e "\033[31m-[-] not set PermitUserEnvironment no\033[0m"
fi
# 6.2.9 check if set specific MAC algorithms
local res=$(grep "^MACs" /etc/ssh/sshd_config)
if [[ -n $res ]]; then
sshdIfSpecificMACs="True"
echo -e "\033[32m-[+] will use specific MAC algorithms $res \033[0m"
else
sshdIfSpecificMACs="False"
echo -e "\033[31m-[-] not set specific MAC algorithms\033[0m"
fi
# 6.2.10 check SSH idle Timeout Interval if is configured
local res=$(grep "^ClientAliveInterval" /etc/ssh/sshd_config)
if [[ -n $res ]]; then
sshdIfSetClientAliveInterval=$(echo $res|sed -r 's/([^1234567890]*)([[:digit:]]+)/\2/')
echo -e "\033[32m-[+] $res \033[0m"
else
sshdIfSetClientAliveInterval="False"
echo -e "\033[31m-[-] not set ClientAliveInterval \033[0m"
fi
# 6.2.11 check SSH LoginGrace Time
local res=$(grep "^LoginGraceTime" /etc/ssh/sshd_config)
if [[ -n $res ]]; then
sshdIfSetLoginGraceTime=$(echo $res|sed -r 's/([^1234567890]*)([[:digit:]]+)/\2/')
echo -e "\033[32m-[+] $res \033[0m"
else
sshdIfSetLoginGraceTime="False"
echo -e "\033[31m-[-] not set LoginGraceTime \033[0m"
fi
else
sshdIfEnabled="False"
echo -e "\033[32m-[+] sshd is not enabled \033[0m"
fi
sshd_config_info={\"sshdIfEnabled\":\"$sshdIfEnabled\",\"sshdConfigFilePermission\":\"$sshdConfigFilePermission\",\"sshdIfDisableX11forwarding\":\"$sshdIfDisableX11forwarding\",\"sshdIfSetMaxAuthTries\":\"$sshdIfSetMaxAuthTries\",\"sshdIfEnableIgnoreRhosts\":\"$sshdIfEnableIgnoreRhosts\",\"sshdIfDisableHostbasedAuthentication\":\"$sshdIfDisableHostbasedAuthentication\",\"sshdIfDisablePermitRootLogin\":\"$sshdIfDisablePermitRootLogin\",\"sshdIfDisablePermitEmptyPasswords\":\"$sshdIfDisablePermitEmptyPasswords\",\"sshdIfDisablePermitUserEnvironment\":\"$sshdIfDisablePermitUserEnvironment\",\"sshdIfSpecificMACs\":\"$sshdIfSpecificMACs\",\"sshdIfSetClientAliveInterval\":\"$sshdIfSetClientAliveInterval\",\"sshdIfSetLoginGraceTime\":\"$sshdIfSetLoginGraceTime\"}
# 6.3 PAM configuration
echo "-[·] check pam configuration"
# 6.3.1 password creation policy
if [[ -f /etc/security/pwquality.conf ]]; then
pamPwqualityconfIfExist="True"
local minlen=$(grep ^minlen /etc/security/pwquality.conf | sed 's/ //g')
local minclass=$(grep ^minclass /etc/security/pwquality.conf |sed 's/ //g')
if [[ -n $minlen ]]; then
pamIfSetMinlen=$(echo $minlen|cut -d= -f2)
echo -e "\033[32m-[+] minimime length of password is $(echo $minlen|cut -d= -f2) \033[0m"
else
pamIfSetMinlen="False"
echo -e "\033[31m-[-] not set minlen \033[0m"
fi
if [[ -n $minclass ]]; then
pamIfSetMinclass=$(echo $minclass|cut -d= -f2)
echo -e "\033[32m-[+] minclass of password is $(echo $minclass|cut -d= -f2) \033[0m"
else
local keyArray=("^dcredit" "^lcredit" "^ocredit" "^ucredit")
local tmpCount=0
for i in ${keyArray[@]}; do
if [[ -n $(grep $i /etc/security/pwquality.conf) ]]; then
tmpCount=$(expr 1 + $tmpCount)
fi
done
if [[ $tmpCount = 0 ]]; then
pamIfSetMinclass="False"
else
pamIfSetMinclass=$tmpCount
fi
if [[ tmpCount -ge 2 ]]; then
echo -e "\033[32m-[+] minclass of passwd is $tmpCount \033[0m"
else
echo -e "\033[31m-[-] not set minclass \033[0m"
fi
fi
else
pamPwqualityconfIfExist="False"
fi
# 6.3.2 lock account and unlock time
local files=("/etc/pam.d/password-auth" "/etc/pam.d/system-auth")
local keyArray=("pam_faillock\.so.*?unlock_time")
tmpArray1=()
tmpArray2=()
for i in ${files[@]}; do
for k in ${keyArray[@]}; do
if [[ -n $(egrep $k $i ) ]]; then
echo -e "\033[32m-[+] set lock and unlock_time in $i \033[0m"
tmpArray1+=($i\;)
else
tmpArray2+=($i\;)
echo -e "\033[31m-[-] not set lock and unlock_time in $i \033[0m"
fi
done
done
sshdSetedLockAndUnlockTimeFiles=$(echo ${tmpArray1[@]}|sed 's/; /;/g')
sshdNotSetedLockAndUnlockTimeFiles=$(echo ${tmpArray2[@]}|sed 's/; /;/g')
# 6.3.3 check password reuse if is limited
sshdPamdFileArray=$(echo ${files[@]}|sed 's/ /;/g')
tmpArray=()
for i in ${files[@]}; do
local res=$(egrep '^password\s+sufficient\s+pam_unix.so' $i)
if [[ -n $res ]] && [[ $res =~ "remember=" ]]; then
local tmp=$(echo $res|sed 's/.*\(remember=[[:digit:]]\).*/\1/g'|sed 's/ //g'|cut -d= -f2)
tmpArray+=($tmp\;)
echo -e "\033[32m-[+] password reuse limit is $tmp in $i \033[0m"
else
tmpArray+=("False;")
echo -e "\033[31m-[-] passowrd reuse limit not set in $i \033[0m"
fi
done
sshdPamdFileReuseLimitArray=$(echo ${tmpArray[@]}|sed 's/; /;/g')
# 6.3.4 check the algorithm of store password if is sha512
tmpArray=()
for i in ${files[@]}; do
local res=$(egrep '^password\s+sufficient\s+pam_unix.so' $i)
if [[ -n $res ]] && [[ $res =~ "sha512" ]]; then
tmpArray+=("True;")
echo -e "\033[32m-[+] password storage algorithm is set to sha512 in $i \033[0m"
else
tmpArray+=("False;")
echo -e "\033[31m-[-] password storage algorithm is not specific to sha512 in $i \033[0m"
fi
done
sshdPamdFileIfSetSha512Array=$(echo ${tmpArray[@]}|sed 's/; /;/g')
pam_config_info={\"pamPwqualityconfIfExist\":\"$pamPwqualityconfIfExist\",\"pamIfSetMinlen\":\"$pamIfSetMinlen\",\"pamIfSetMinclass\":\"$pamIfSetMinclass\",\"sshdSetedLockAndUnlockTimeFiles\":\"$sshdSetedLockAndUnlockTimeFiles\",\"sshdNotSetedLockAndUnlockTimeFiles\":\"$sshdNotSetedLockAndUnlockTimeFiles\",\"sshdPamdFileArray\":\"$sshdPamdFileArray\",\"sshdPamdFileReuseLimitArray\":\"$sshdPamdFileReuseLimitArray\",\"sshdPamdFileIfSetSha512Array\":\"$sshdPamdFileIfSetSha512Array\"}
# 6.4 user accounts and environment
echo "-[·] check user accounts and environment"
if [[ -f /etc/login.defs ]]; then
accountLogindefsIfExist="True"
# 6.4.1 basic settings
local file='/etc/login.defs'
passMaxDays=$(grep ^PASS_MAX_DAYS $file|sed -r 's/[^1234567890]*([1234567890]{1,})/\1/g')
passMinDays=$(grep ^PASS_MIN_DAYS $file|sed -r 's/[^1234567890]*([1234567890]{1,})/\1/g')
passWarnAge=$(grep ^PASS_WARN_DAYS $file|sed -r 's/[^1234567890]*([1234567890]{1,})/\1/g')
inactive=$(useradd -D|grep INACTIVE|sed 's/ //g'|cut -d= -f2)
accountPassMaxDays=$passMaxDays
accountPassMinDays=$passMinDays
accountPassWarnDays=$passWarnAge
accountPassAutolockInactiveDays=$inactive
if [[ $passMaxDays -le 90 ]]; then
echo -e "\033[32m-[+] the maximume days of password have to change is $passMaxDays \033[0m"
else
echo -e "\033[31m-[-] the maximume days of password have to change is $passMaxDays ,should less than 90 day\033[0m"
fi
if [[ $passMinDays -ge 7 ]]; then
echo -e "\033[32m-[+] the minimume days of password have to change is $passMinDays \033[0m"
else
echo -e "\033[31m-[-] the minimume days of password have to change is $passMinDays ,should great than 7 day\033[0m"
fi
if [[ $passWarnAge -ge 7 ]]; then
echo -e "\033[32m-[+] the minimume days of warn password need to change is $passWarnAge \033[0m"
else
echo -e "\033[31m-[-] the minimume days of warn password need to change is $passWarnAge ,should greate than 7 day\033[0m"
fi
if [[ $inactive != -1 ]]; then
echo -e "\033[32m-[+] auto lock account when the $inactive day haven't login \033[0m"
else
echo -e "\033[31m-[-] haven't set day of auto lock accounts \033[0m"
fi
# 6.4.2 check system's account if is unlogin
local res=$(egrep -v "^\+" /etc/passwd | awk -F: '($1!="root" && $1!="sync" && $1!="shutdown" && $1!="halt" && $3<1000 && $7!="/sbin/nologin" && $7!="/bin/false") {print $1}')
tmpArray=()
if [[ -z $res ]]; then
tmpArray+=("False;")
echo -e "\033[32m-[+] system account can't login \033[0m"
else
tmpArray+=($(echo $res|sed 's/\n/ /g'))
echo -e "\033[31m-[-] ($(echo $res|sed 's/\n/ /g'))user's shell need set to /sbin/nologin \033[0m"
fi
accountShouldUnloginAray=$(echo ${tmpArray[@]}|sed 's/ /;/g')
# 6.4.3 check default group for the root account if is GID 0
local res=$(grep "^root:" /etc/passwd|cut -d: -f4)
accountGIDOfRoot=$res
if [[ $res = 0 ]]; then
echo -e "\033[32m-[+] default group for the root account is GID 0 \033[0m"
else
echo -e "\033[31m-[-]] default group for the root account is is GID $res,not GID 0 \033[0m"
fi
# 6.4.4 check default user shell timeout if is 900 seconds or less
local files=("/etc/bashrc" "/etc/profile")
tmpArray1=()
tmpArray2=()
for file in ${files[@]}; do
if [[ ! -f $file ]]; then
continue
else
tmpArray1+=($file\;)
fi
local res=$(grep "^TMOUT" $file|sed 's/ //g'|cut -d= -f2)
if [[ -z $res ]]; then
tmpArray2+=("False;")
echo -e "\033[31m-[-] not set TMOUT in file $file \033[0m"
continue
fi
tmpArray2+=($res\;)
if [[ $res -le 900 ]]; then
echo -e "\033[32m-[+] when idle time great than $res seconds will close connection \033[0m"
else
echo -e "\033[31m-[-] when idle time great than $res seconds will close connection,the time should less than 900 seconds \033[0m"
fi
done
accountProfileFileArray=$(echo ${tmpArray1[@]}|sed 's/; /;/g')
accountProfileTMOUTArray=$(echo ${tmpArray2[@]}|sed 's/; /;/g')
# 6.4.5 check access to su command if is restricted
local res=$(grep pam_wheel.so /etc/pam.d/su)
# accountIfSetUsersCanAccessSuCommand=
if [[ -n $res ]]; then
local res=$(grep wheel /etc/group|cut -d: -f4)
if [[ -n $res ]]; then
accountIfSetUsersCanAccessSuCommand=$(echo $res|sed 's/\n/;/g')
echo -e "\033[32m-[+] access to su command is specific to $(echo $res|sed 's/\n/;/g') \033[0m"
else
accountIfSetUsersCanAccessSuCommand="False"
echo -e "\033[31m-[-] access to su command is not restricted \033[0m"
fi
else
accountIfSetUsersCanAccessSuCommand="False"
echo -e "\033[31m-[-] access to su command is not restricted \033[0m"
fi
else
accountLogindefsIfExist="False"
echo -e "\033[31m-[-] file /etc/login.defs is not exist \033[0m"
fi
account_config_info={\"accountPassMaxDays\":\"$accountPassMaxDays\",\"accountPassMinDays\":\"$accountPassMinDays\",\"accountPassWarnDays\":\"$accountPassWarnDays\",\"accountPassAutolockInactiveDays\":\"$accountPassAutolockInactiveDays\",\"accountShouldUnloginArray\":\"$accountShouldUnloginArray\",\"accountGIDOfRoot\":\"$accountGIDOfRoot\",\"accountProfileFileArray\":\"$accountProfileFileArray\",\"accountProfileTMOUTArray\":\"$accountProfileTMOUTArray\",\"accountIfSetUsersCanAccessSuCommand\":\"$accountIfSetUsersCanAccessSuCommand\"}
authentication_check_res={\"crond_config_info\":$crond_config_info,\"sshd_config_info\":$sshd_config_info,\"pam_config_info\":$pam_config_info,\"account_config_info\":$account_config_info}
}
function system_check {
echo "[·] check permission of important file and configuration of user and group"
# 7.1 check permission of important file and uid gid
echo "-[·] check permission of important file"
local files=("/etc/passwd" "/etc/shadow" "/etc/group" "/etc/gshadow" "/etc/passwd-" "/etc/shadow-" "/etc/group-" "/etc/gshadow-")
importantFilenameArray=$(echo ${files[@]}|sed 's/ /;/g')
tmpArray1=()
tmpArray2=()
for file in ${files[@]}; do
local perm=$(stat $file |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4|cut -d"/" -f1)
local uidGid=$(stat /etc/passwd |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f3,4|sed 's/ //g'|sed -r 's/([[:digit:]]{1,}).*([[:digit:]]{1,}).*/\1 \2/g'|cut -d" " -f1,2)
tmpArray1+=($perm\;)
tmpArray2+=($uidGid\;)
if [[ $file =~ "shadow" ]]; then
if [[ $perm = "0000" ]]; then
echo -e "\033[32m-[+] file $file's permission is $perm \033[0m"
else
echo -e "\033[31m-[-] file $file's permission is $perm,should set to 0000 \033[0m"
fi
else
if [[ $perm = "0644" ]]; then
echo -e "\033[32m-[+] file $file's permission is $perm \033[0m"
else
echo -e "\033[31m-[-] file $file's permission is $perm,should set to 0644 \033[0m"
fi
fi
if [[ $uidGid = "0 0" ]]; then
echo -e "\033[32m-[+] file $file's uid gid is $uidGid \033[0m"
else
echo -e "\033[31m-[-] file $file's uid gid is $uidGid,should set to 0 0 \033[0m"
fi
done
importantFilePermissionArray=$(echo ${tmpArray1[@]}|sed 's/; /;/g')
importantFileUidgidArray=$(echo ${tmpArray2[@]}|sed 's/; /;/g')
file_permission_info={\"importantFilenameArray\":\"$importantFilenameArray\",\"importantFilePermissionArray\":\"$importantFilePermissionArray\",\"importantFileUidgidArray\":\"$importantFileUidgidArray\"}
# 7.2 check configuration of user and group
echo "-[·] check configuration of user and group"
# 7.2.1 check if user's password is empty
users=$(cat /etc/shadow |awk -F: '($2=="!!"){print $1}'|while read x;do
res=$(grep ${x} /etc/passwd|cut -d: -f7); if [[ $res != "/sbin/nologin" ]] && [[ $res != "/sbin/shutdon" ]] && [[ $res != "/sbin/halt" ]]; then
echo $x
#echo -e "\033[31m-[-] $x should have a passwd,not empty \033[0m";
fi;
done)
if [[ -z $users ]]; then
userIfSetPasswdOrArray="True"
echo -e "\033[32m-[+] all user account have set password \033[0m"
else
userIfSetPasswdOrArray=$(echo $users|sed 's/ /;/g')
echo -e "\033[31m-[-] user:$(echo $users|sed 's/\n/ /g') should set a password ,rather than empty \033[0m"
fi
# 7.2.2 check if root is the only UID 0 account
local users=$(cat /etc/passwd|awk -F: '($3==0){print $1}')
if [[ $users = 'root' ]]; then
uid0OnlyRootOrArray="True"
echo -e "\033[32m-[+] root is the only account that uid is 0 \033[0m"
else
uid0OnlyRootOrArray=$(echo $users|sed 's/root //g'|sed 's/ /;/g')
echo -e "\033[31m-[-] $(echo $users|sed 's/root //g'|sed 's/\n/ /g') uid should not be 0 \033[0m"
fi
# 7.2.3 check root PATH integrith
if [ "$(echo $PATH|grep ::)" != "" ]; then
echo -e "\033[31m-[-] Empty Directory in PATH (::) \033[0m"
fi
if [ "$(echo $PATH|grep :$)" != "" ]; then
echo -e "\033[31m-[-] Trailing : in PATH \033[0m"
fi
path=$( echo $PATH|sed -e 's/::/:/' -e 's/:$//' -e 's/:/ /g')
tmpArray1=()
tmpArray2=()
tmpArray3=()
tmpArray4=()
tmpArray5=()
set -- $path
while [[ $1 != "" ]]; do
if [[ $1 = "." ]]; then
echo -e "\033[31m-[-] PATH contains . \033[0m"
tmpArray1+=(".")
shift
continue
fi
if [[ -d $1 ]]; then
local dirperm=$(ls -ldH $1|cut -d" " -f1)
if [[ $(echo $dirperm|cut -c6) != "-" ]]; then
tmpArray2+=($1\;)
echo -e "\033[31m-[-] Group Write permission should not set on directory $1 \033[0m"
fi
if [[ $(echo $dirperm|cut -c9) != "-" ]]; then
tmpArray3+=($1\;)
echo -e "\033[31m-[-] Other Write permission should not set on directory $1 \033[0m"
fi
local dirown=$(ls -ldH $1|awk '{print $3}')
if [[ $dirown != "root" ]]; then
tmpArray4+=($1\;)
echo -e "\033[31m-[-] dir $1's owner is $dirown,should be root \033[0m"
fi
else
tmpArray5+=($1\;)
echo -e "\033[31m-[-] $1 is not a directory or not exist \033[0m"
fi
shift
done
if [[ ${#tmpArray1[@]} = 0 ]]; then
pathDirIfNotHasDot="True"
else
pathDirIfNotHasDot="False"
fi
pathDirPermissionHasGWArray=$(echo ${tmpArray2[@]}|sed 's/; /;/g')
pathDirPermissionHasOWArray=$(echo ${tmpArray3[@]}|sed 's/; /;/g')
pathDirOwnerIsNotRootArray=$(echo ${tmpArray4[@]}|sed 's/; /;/g')
pathDirDoesNotExistOrNotDirArray=$(echo ${tmpArray5[@]}|sed 's/; /;/g')
# 7.2.4 check if is all users' home directories exist
#cat /etc/passwd|egrep -v '^(root|halt|sync|shutdown)'|awk -F: '($7 != "/sbin/nologin" && $7 != "/bin/false"){print $1 " " $6}'|while read user dir; do
tmpArray1=()
tmpArray2=()
tmpArray3=()
tmpArray4=()
tmpArray5=()
tmpArray6=()
while read user dir; do
tmpArray1+=($dir\;)
if [[ ! -d $dir ]]; then
tmpArray2+=("False;")
tmpArray3+=("False;")
echo -e "\033[31m-[-] the home directory ($dir) of user $user does not exist \033[0m"
else
tmpArray2+=("True;")
# 7.2.5 check if users' home directories permissions are 750 or more restrictive
local dirperm=$(ls -ld $dir|cut -d" " -f1)
tmpArray3+=($dirperm\;)
if [[ $(echo $dirperm |cut -c6) != "-" ]]; then
echo -e "\033[31m-[-] Group Write permission set on the home directory ($dir) of user $user \033[0m"
fi
if [[ $(echo $dirperm |cut -c8) != "-" ]]; then
echo -e "\033[31m-[-] Other Read permission set on the home directory ($dir) of user $user \033[0m"
fi
if [[ $(echo $dirperm |cut -c9) != "-" ]]; then
echo -e "\033[31m-[-] Other Write permission set on the home directory ($dir) of user $user \033[0m"
fi
if [[ $(echo $dirperm |cut -c10) != "-" ]]; then
echo -e "\033[31m-[-] Other Execute permission set on the home directory ($dir) of user $user \033[0m"
fi
# 7.2.6 check if is users own their home directory
local owner=$(stat -L -c "%U" $dir)
if [[ $owner != $user ]]; then
tmpArray4+=("False;")
echo -e "\033[31m-[-]The home directory ($dir) of user $user is owned by $owner \033[0m"
else
tmpArray4+=("True;")
fi
# 7.2.7 check users' dot files are not group or world writable
local tmpc=0
for file in $dir/.[A-Za-z0-9]*; do
if [[ ! -h $file ]] && [[ -f $file ]]; then
local fileperm=$(ls -ld $file|cut -d" " -f1)
if [[ $(echo $fileperm|cut -c6) != "-" ]]; then
tmpc=$(expr $tmpc + 1)
echo -e "\033[31m-[-] Group Write permission set on file $file \033[0m"
fi
if [[ $(echo $fileperm|cut -c9) != "-" ]]; then
tmpc=$(expr $tmpc + 1)
echo -e "\033[31m-[-] Other Write permission set on file $file \033[0m"
fi
fi
done
if [[ $tmpc = 0 ]]; then
tmpArray5+=("True;")
else
tmpArray5+=("False;")
fi
# 7.2.8 check if no usrs have .netrc .rhosts .forward file
tmpc=0
if [[ ! -h $dir/.netrc ]] && [[ -f $dir/.netrc ]]; then
tmpc=$(expr $tmpc + 1)
echo -e "\033[31m-[-] .netrc file $dir/.netrc exists \033[0m"
fi
if [[ ! -h $dir/.rhosts ]] && [[ -f $dir/.rhosts ]]; then
tmpc=$(expr $tmpc + 1)
echo -e "\033[31m-[-] .rhosts file $dir/.rhosts exists \033[0m"
fi
if [[ ! -h $dir/.forward ]] && [[ -f $dir/.forward ]]; then
tmpc=$(expr $tmpc + 1)
echo -e "\033[31m-[-] .forward file $dir/.forward exists \033[0m"
fi
if [[ $tmpc = 0 ]]; then
tmpArray6+=("True;")
else
tmpArray6+=("False;")
fi
fi
done < <(cat /etc/passwd|egrep -v '^(root|halt|sync|shutdown)'|awk -F: '($7 != "/sbin/nologin" && $7 != "/bin/false"){print $1 " " $6}')
userArray=$(echo ${tmpArray1[@]}|sed 's/; /;/g')
userHomeDirIfExistArray=$(echo ${tmpArray2[@]}|sed 's/; /;/g')
userHomeDirPermissionArray=$(echo ${tmpArray3[@]}|sed 's/; /;/g')
userIfOwnTheirHomeDirArray=$(echo ${tmpArray4[@]}|sed 's/; /;/g')
userHomeDirIfHasGWorOWDotFileArray=$(echo ${tmpArray5[@]}|sed 's/; /;/g')
userHomeDirIfHasOtherFileArray=$(echo ${tmpArray6[@]}|sed 's/; /;/g')
# 7.2.9 check if all groups in /etc/passwd exist in /etc/group
tmpArray=()
for i in $(cut -d: -s -f4 /etc/passwd|sort -u); do
grep -q -P "^.*?:[^:]*:$i" /etc/group
if [[ $? -ne 0 ]]; then
tmpArray+=($i\;)
echo -e "\033[31m-[-] Group $i is referenced by /etc/passwd but does not exist in /etc/group \033[0m"
fi
done
groupNotExistInetcgroup=$(echo ${tmpArray[@]}|sed 's/; /;/g')
# 7.2.10 check if every user has a unique UID
#cat /etc/passwd|cut -d":" -f3|sort -n|uniq -c|while read x; do
tmpArray=()
while read x; do
[[ -z $x ]] && break
set - $x
if [[ $1 -gt 1 ]]; then
local users=$(awk -F: '($3==n){print $1}' n=$2 /etc/passwd|xargs)
tmpArray+=($2:$users\;)
echo -e "\033[31m-[-] Duplicate UID $2 : $users \033[0m"
fi
done < <(cat /etc/passwd|cut -d":" -f3|sort -n|uniq -c)
usersIfHasUniqueUIDArray=$(echo ${tmpArray[@]}|sed 's/; /;/g')
# 7.2.11 check if every group has a unique GID
tmpArray=()
#cat /etc/group|cut -d":" -f3|sort -n|uniq -c|while read x; do
while read x; do
[[ -z $x ]] && break
set - $x
if [[ $1 -gt 1 ]]; then
local groups=$(awk -F: '($3==n){print $1}' n=$2 /etc/group|xargs)
tmpArray+=($2:$groups\;)
echo -e "\033[31m-[-] Duplicate GID $2 : $groups \033[0m"
fi
done < <(cat /etc/group|cut -d":" -f3|sort -n|uniq -c)
groupsIfHasUniqueGIDArray=${tmpArray[@]}
# 7.2.12 check if user name is unique
tmpArray=()
#cat /etc/passwd|cut -d":" -f1|sort -n|uniq -c|while read x; do
while read x; do
[[ -z $x ]] && break
set - $x11
if [[ $1 -gt 1 ]]; then
local uids=$(awk -F: '($1 == n){print $3}' n=$2 /etc/passwd|xargs)
tmpArray+=($2:$uids\;)
echo -e "\033[31m-[-] Duplicate user name $2 : $uids \033[0m"
fi
done < <(cat /etc/passwd|cut -d":" -f1|sort -n|uniq -c)
usersIfHasUniqueNameArray=${tmpArray[@]}
# 7.2.13 check if group name is unique
tmpArray=()
#cat /etc/group|cut -d":" -f1|sort -n|uniq -c|while read x; do
while read x; do
[[ -z $x ]] && break
set - $x11
if [[ $1 -gt 1 ]]; then
local gids=$(awk -F: '($1 == n){print $3}' n=$2 /etc/group|xargs)
tmpArray+=($2:$gids\;)
echo -e "\033[31m-[-] Duplicate group name $2 : $gids \033[0m"
fi
done < <(cat /etc/group|cut -d":" -f1|sort -n|uniq -c)
groupsIfHasUniqueNameArray=${tmpArray[@]}
usergroup_config_info={\"userIfSetPasswdOrArray\":\"$userIfSetPasswdOrArray\",\"uid0OnlyRootOrArray\":\"$uid0OnlyRootOrArray\",\"pathDirIfNotHasDot\":\"$pathDirIfNotHasDot\",\"pathDirPermissionHasGWArray\":\"$pathDirPermissionHasGWArray\",\"pathDirPermissionHasOWArray\":\"$pathDirPermissionHasOWArray\",\"pathDirOwnerIsNotRootArray\":\"$pathDirOwnerIsNotRootArray\",\"pathDirDoesNotExistOrNotDirArray\":\"$pathDirDoesNotExistOrNotDirArray\",\"userArray\":\"$userArray\",\"userHomeDirIfExistArray\":\"$userHomeDirIfExistArray\",\"userHomeDirPermissionArray\":\"$userHomeDirPermissionArray\",\"userIfOwnTheirHomeDirArray\":\"$userIfOwnTheirHomeDirArray\",\"userHomeDirIfHasGWorOWDotFileArray\":\"$userHomeDirIfHasGWorOWDotFileArray\",\"userHomeDirIfHasOtherFileArray\":\"$userHomeDirIfHasOtherFileArray\",\"groupNotExistInetcgroup\":\"$groupNotExistInetcgroup\",\"usersIfHasUniqueUIDArray\":\"$usersIfHasUniqueUIDArray\",\"groupsIfHasUniqueGIDArray\":\"$groupsIfHasUniqueGIDArray\"}
system_check_res={\"file_permission_info\":$file_permission_info,\"usergroup_config_info\":$usergroup_config_info}
}
echo """
==================================
| Linux 基线检查工具 |
| author:JC0o0l |
| version:2.2 |
==================================
"""
get_basic_info
init_check
service_check
network_check
auditd_check
log_check
authentication_check
system_check
if [[ -z $authentication_check_res ]]; then
authentication_check_res={}
fi
if [[ -z $system_check_res ]]; then
system_check_res={}
fi
check_result={\"basic_info\":$basic_info,\"init_check_res\":$init_check_res,\"service_check_res\":$service_check_res,\"network_check_res\":$network_check_res,\"auditd_check_res\":$auditd_check_res,\"log_check_res\":$log_check_res,\"authentication_check_res\":$authentication_check_res,\"system_check_res\":$system_check_res}
curl -X POST "http://192.168.3.24:8888/baseline/linux_scan_res_report/" -H "accept:application/json" -H "content-type:application/json" -d "$check_result" 1>/dev/null 2>/dev/null
echo $check_result|jq
================================================
FILE: baseline_check_v2_JC0o0l.sh
================================================
#!/bin/bash
function get_ip_info {
local ipList=`ifconfig | grep inet |grep -v inet6|grep -v 127|sed 's/^[ ]*//g'|cut -d" " -f2`
echo $ipList
}
function get_basic_info {
echo [·] collect basic info
hostname=`hostname`
ipList=`get_ip_info`
kernelVersion=`uname -r`
if [[ $(cat /proc/version) =~ "Red Hat" ]]; then
osVersion=`cat /etc/redhat-release|cut -f1,4 -d" "`
fi
basic_info={\"hostname\":\"$hostname\",\"ipList\":\"$ipList\",\"kernelVersion\":\"$kernelVersion\",\"osVersion\":\"$osVersion\"}
echo $basic_info
}
function init_check {
# 1. init configuration
echo [·] check init configuration
# 1.1 file system configuration
# 1.1.1 /tmp separate mount
local tmpIfSeparate #=""
local tmpIfNoexec #=""
local tmpIfNosuid #=""
local res=$(mount|grep "/tmp ")
if [[ -z $res ]]; then
echo -e "\033[31m-[-] /tmp/ not mounted on separate dick\033[0m"
tmpIfSeparate="false"
tmpIfNoexec="false"
tmpIfNosuid="false"
else
tmpIfSeparate="true"
tmpIfNoexec="true"
tmpIfNosuid="true"
fi
if $tmpIfSeparate; then
#mount|grep "/sys/kernel/debug " |while read res;do
while read res;do
#echo "mount | grep /sys --result-->" $res
# 1.1.2 /tmp noexec nosuid
local diskPart=$(echo $res|cut -d" " -f3)
if [[ ! $res =~ "noexec" ]];then
echo -e "\033[31m-[-] no noexec option on $diskPart partion\033[0m"
tmpIfNoexec="false"
if [[ ! $res =~ "nosuid" ]];then
echo -e "\033[31m-[-] no nosuid option on $diskPart partion\033[0m"
tmpIfNosuid="false"
fi
elif [[ ! $res =~ "nosuid" ]];then
echo -e "\033[31m-[-] no nosuid option on $diskPart partion\033[0m"
tmpIfNosuid="false"
fi
done < <(mount | grep "/tmp ")
fi
tmp_partition_info={\"tmpIfSeparate\":\"$tmpIfSeparate\",\"tmpIfNoexec\":\"$tmpIfNoexec\",\"tmpIfNosuid\":\"$tmpIfNosuid\"}
#echo $tmp_partition_info
# 1.2 secure boot configuration
if [[ -f /boot/grub2/grub.cfg ]];then
grubcfgIfExist="true"
grubcfgPermission="0600"
grubcfgIfSetPasswd="true"
else
grubcfgIfExist="false"
grubcfgPermission="0000"
grubcfgIfSetPasswd="false"
fi
if $grubcfgIfExist; then
# 1.2.1 /boot/grub2/grub.cfg permission /boot/grub2/user.cfg permission 0600 root:root
res=$(stat /boot/grub2/grub.cfg |while read x;do if [[ $x =~ "Uid" ]] && [[ $x =~ "(" ]]; then echo $x;fi;done|cut -d"(" -f2,3,4)
grubcfgPermission=$(echo $res|cut -d"/" -f1)
if [[ $(echo $res|cut -d"/" -f1) = "0600" ]]; then
echo -e "\033[32m-[+] /boot/grub2/grub.cfg permission is 0600 \033[0m"
else
echo -e "\033[31m-[-] /boot/grub2/grub.cfg permission is not 0600 \033[0m"
fi
# 1.2.2 Ensure bootloader password is set
res=$(grep "^GRUB2 PASSWORD" /boot/grub2/grub.cfg)
if [[ -n $res ]]; then
echo -e "\033[32m-[+] /boot/grub2/grub.cfg seted password \033[0m"
grubcfgIfSetPasswd="true"
else
echo -e "\033[31m-[-] /boot/grub2/grub.cfg not set password \033[0m"
grubcfgIfSetPasswd="false"
fi
fi
# 1.2.3 single user mode need authentication
if [[ -f /usr/lib/systemd/system/rescue.service ]] && [[ -f /usr/lib/systemd/system/emergency.service ]]; then
res1=`grep /sbin/sulogin /usr/lib/systemd/system/rescue.service`
res2=`grep /sbin/sulogin /usr/lib/systemd/system/emergency.service`
if [[ $res1 = "ExecStart=-/bin/sh -c \"/usr/sbin/sulogin; /usr/bin/systemctl --fail --no-block default\"" ]] && [[ $res2 = "ExecStart=-/bin/sh -c \"/usr/sbin/sulogin; /usr/bin/systemctl --fail --no-block default\"" ]]; then
echo -e "\033[32m-[+] single user mode need authentication \033[0m"
singleUserModeIfNeedAuth="true"
else
echo -e "\033[31m-[+] single user mode does not need authentication \033[0m"
singleUserModeIfNeedAuth="false"
fi
fi
# 1.3 Mantary Access Control
# 1.3.1 ensure the SELinux state is enforcing
if [[ -f /etc/selinux/config ]]; then
local num=$(sestatus|grep -c enforcing)
if [[ $num -gt 1 ]]; then
echo -e "\033[32m-[+] SELinux state is enforcing \033[0m"
selinuxStateIfEnforcing="true"
else
echo -e "\033[31m-[-] SELinux state is not enforcing \033[0m"
selinuxStateIfEnforcing="false"
fi
fi
# 1.3.2 ensure selinux policy is configured
if [[ -f /etc/selinux/config ]]; then
res=$(sestatus|grep targeted)
if [[ -n $res ]]; then
echo -e "\0
gitextract_nnm6_la9/ ├── .gitattributes ├── LICENSE ├── README/ │ └── 77766a601331a6c9ef597b778706fd9c.png-quanzi ├── README.md ├── baseline_check_JC0o0l.sh ├── baseline_check_v2.1_JC0o0l.sh ├── baseline_check_v2.2_JC0o0l.sh ├── baseline_check_v2_JC0o0l.sh ├── linux_baseline_check.sh ├── sec.inf └── win2012_baseline_check.ps1
Condensed preview — 11 files, each showing path, character count, and a content snippet. Download the .json file or copy for the full structured content (368K chars).
[
{
"path": ".gitattributes",
"chars": 66,
"preview": "# Auto detect text files and perform LF normalization\n* text=auto\n"
},
{
"path": "LICENSE",
"chars": 35129,
"preview": "GNU GENERAL PUBLIC LICENSE\n Version 3, 29 June 2007\n\n Copyright (C) 2007 Free Software Foundation,"
},
{
"path": "README.md",
"chars": 2252,
"preview": "# SecurityBaselineCheck\n\n[<h1>脚本请到AssetManage项目下的Agent目录下去下载<h1>](https://github.com/chroblert/AssetManage/tree/master/A"
},
{
"path": "baseline_check_JC0o0l.sh",
"chars": 38271,
"preview": "#!/bin/bash\nfunction get_ip_info {\n local ipList=`ifconfig | grep inet |grep -v inet6|grep -v 127|sed 's/^[ ]*//g'|cu"
},
{
"path": "baseline_check_v2.1_JC0o0l.sh",
"chars": 58470,
"preview": "#!/bin/bash\nfunction get_ip_info {\n local ipList=`ifconfig | grep inet |grep -v inet6|grep -v 127|sed 's/^[ ]*//g'|cu"
},
{
"path": "baseline_check_v2.2_JC0o0l.sh",
"chars": 60031,
"preview": "#!/bin/bash\nfunction get_ip_info {\n local ipList=`ifconfig | grep inet |grep -v inet6|grep -v 127|sed 's/^[ ]*//g'|cu"
},
{
"path": "baseline_check_v2_JC0o0l.sh",
"chars": 58451,
"preview": "#!/bin/bash\nfunction get_ip_info {\n local ipList=`ifconfig | grep inet |grep -v inet6|grep -v 127|sed 's/^[ ]*//g'|cu"
},
{
"path": "linux_baseline_check.sh",
"chars": 60039,
"preview": "#!/bin/bash\nfunction get_ip_info {\n local ipList=`ifconfig | grep inet |grep -v inet6|grep -v 127|sed 's/^[ ]*//g'|cu"
},
{
"path": "win2012_baseline_check.ps1",
"chars": 31749,
"preview": "<#\nAuthor: JC (@chroblert)\nAuthor: JC0o0l (@chroblert)\nMail: jerryzvs@163.com\nwechat: Chroblert_Jerrybird(信安札记)\n#>\nchcp"
}
]
// ... and 2 more files (download for full content)
About this extraction
This page contains the full source code of the chroblert/SecurityBaselineCheck GitHub repository, extracted and formatted as plain text for AI agents and large language models (LLMs). The extraction includes 11 files (336.4 KB), approximately 102.5k tokens. Use this with OpenClaw, Claude, ChatGPT, Cursor, Windsurf, or any other AI tool that accepts text input. You can copy the full output to your clipboard or download it as a .txt file.
Extracted by GitExtract — free GitHub repo to text converter for AI. Built by Nikandr Surkov.