Exploit for the CVE-2019-5736 runc vulnerability# cve-2019-5736-exp
This is a proof-of-concept (PoC) exploit for the CVE-2019-5736 vulnerability in
runc, the runtime used in Docker.
## Disclaimer
I undertook this project as an exercise, for educational reasons and for fun.
It should go without saying that I do not support unethical and/or illegal
misuse of this code.
## Description
The vulnerability was discovered by [Adam Iwaniuk] and [Borys Popławski] and
described in this [blog post][ds]. Thanks for the great research!
[Adam Iwaniuk]: https://twitter.com/adam_iwaniuk
[Borys Popławski]: https://twitter.com/boryspop
[ds]: https://blog.dragonsector.pl/2019/02/cve-2019-5736-escape-from-docker-and.html
## Usage
To build a malicious container:
```
docker build .
```
Running this container will cause the runc binary to be overwritten with the
contents of the `payload` file, i.e.
```
docker run <image_id>
```
Next time runc is executed (e.g when a different container is run), the host
will execute your payload.
[4.0K] /data/pocs/2703734f5c27c6637d396e5a50bff4dde1f00673
├── [ 842] Dockerfile
├── [1.5K] evil.c
├── [ 38] payload
└── [ 988] README.md
0 directories, 4 files