Simple file storage is a misc challenge which extracts uploaded zip files given they pass a handful of checks. Whilst the intended solution was to use a zip-tar polygot file, this writeup details the discovery and exploitation of using a single zip archive.
bfbl was a pwn challenge at the BSidesCbr CTF which got 1 solve. Whilst I didn't attend the conference in person, I did help the skateboarding roomba team (a mix of FrenchRoomba and Skateboarding Dog players) secure first place. Shout out to Grassroots Indirection and Emu Exploit on second and third respectively.
Generic Platformer was a reverse engineering challenge part of TUCTF 2022. The application we are reversing is not a productive application, rather it is a game.
web2pdf is a web challenge which allows us to convert any webpage into a pdf file. Our team, 🇫🇷🛹🐻 were first to solve the challenge, with emily and hashkitten being immensely helpful in solving this challenge.