404 CTF 2022

This month-long CTF was organized by HackademINT for the DGSE's 80th birthday.

This CTF was organised by HackademINT for the DGSE, the French Secret Service, to celebrate its 80th birthday. Quite happy with my results as I placed 84th out of 2500 people.

Very fun CTF, with some categories not often seen like Web3 and SmartContracts.

Writeups hosted on Github

Detailed list of challenges

  • Binexploit
    • Trop facile (really simple buffer overflow)
    • Sans protection (more advanced buffer overflow)
    • Cache cache (format string vulnerability)
  • Cryptography
    • RSA incassable
    • Fonte des Hashs
  • Forensics
    • Floppy
    • Ping pong
    • Un Agent Compromis (1, 2 et 3)
    • Hacklebarde Ransomware 1
    • SOS Raid 1
  • Misc
    • Pierre papier hallebarde
    • ThĂ©ière
    • Par câble
    • GoGOLFplex
    • Un utilisateur suspicieux 1
    • Un utilisateur suspicieux 2
  • OSINT
    • Équipement dĂ©suet
    • Nous sommes infiltrĂ©s
  • Prog
    • DĂ©coupĂ©
    • Compression
    • DonnĂ©es corrompues
    • 128code128
  • Reverse
    • Mot de passe
    • Mise Ă  jour requise
    • Pas de mise Ă  jour
    • Renverse la tour 1
    • Renverse la tour 2
  • Steganography
    • La plume Ă  la main
    • Un logo obèse (PNG 1)
    • DrĂ´les de chimères (PNG 2)
    • Toujours obèse (PNG 3)
  • Web
    • FichĂ© JS
    • Le Braquage
  • Web3
    • Pense bĂŞte
Built with Hugo - Theme Stack