Disclaimer: we didn't solve any of these tasks during the CTF proper but were persistent enough to solve them afterwards. Huge thanks to the organizers for making it possible:

• they provide a VM with the challenges for anyone to download (btw, we encourage you to download it and get acquainted with the challenges before reading the writeups).
• they set up a server equivalent to the CTF setup just for us, so that we could test our exploits against the real CTF setup.

Web

• heiko (32 solves).
• resonator (17 solves).
• security scanner (2 solves).