HTB - Crypto: Protein Cookies

Challenge Summary

  • Name: Protein Cookies
  • Category: Crypto
  • Difficulty: Easy
  • Goal: Access protected /program content and recover flag.
 

Zero

CTF notes by Zero

Forging authenticated cookies via SHA-512 length-extension to flip isLoggedIn=True.

2026-02-27

Tags

#ctf #htb #cry