This repository contains the challenge I contributed the r2con 2019 CTF. The challenge was not solved during the CTF, so I decided to also host it on github.

The repository contains the following folders:

• challenge/ contains the files provided to the CTF participants. This is the only directory with contents at the moment.

• source/: contains the source code of the socks.ko module running in the challenge VM. By mistake I also left a half-finished v2 module inside the VM filesystem that was not relevant to the challenge.

• solution/: contains a write-up of my solution as well as two differnt exploits to be used for reference purposes.