33C3CTF: Challenge Code and Demo Exploits

33C3CTF was organised by the CTF Teams Stratum0, CCCAC and KITCTF. This post is just a short collection of some challenges we made for 33C3CTF, and maybe some more links related to 33C3CTF.

Challenges by KITCTF

• smartfridge had three parts: Reversing, Crypto, and Pwn. Code and sample solutions can be found in this GitHub repository by tharina.
• Code and a demo-exploit for the Coercive challenge can be found in niklasb’s repository for the challenge.
• Niklas has also published code and exploit for the mario challenge.
• …and the official exploit for ohfortuna
• Saelo has provided code and a demo exploit for the read-eval-pwn-loop in this github repository. He has also written a small writeup.
• Saelos feuerfuchs challenge can also be found online.
• Code for the pdfmaker challenge can be found in this GitHub repo by Gramy.
• The code for my beeblebrox challenge is in one of my repositories, along with my solution.
• The intended solution for the hohoho challenge is on eboda’s Github
• bkth’s babyfengshui challenge can be found in this repo.

More Links

• A list of writeups for challenges from 33C3CTF can be found on CTFtime.
• The recurse challenge was not solved during the CTF. The exploit code by tsuro (from Stratum0) can be found in this gist.