Tokens

hackerlab

Task: Cryptocurrency platform with token-based authentication. Solution: Discovered tokens are SHA256(username) without salt, forged administrator token to access admin profile and retrieve flag.

sha256 cookie_manipulation token_forgery weak_authentication user_enumeration predictable_tokens insecure_token_generation

Token analysis and hash identificationSHA256 token forgeryUser enumeration via token validation

$ ls tags/ techniques/

sha256 cookie_manipulation token_forgery weak_authentication user_enumeration predictable_tokens insecure_token_generation

Token analysis and hash identificationSHA256 token forgeryUser enumeration via token validation

Analysis

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$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

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