JWT Tokens

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Last updated 2 years ago

Format

JWT tokens will be denoted by alpha numeric stings broken up by two . characters.

eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VybmFtZSI6InR5bGVyXzdjMDc3NzBmZDciLCJpYXQiOjE2NjQyODc1ODV9.bxi-fAIhRRRuZyP7qZTSIuuSEl8qHwZal86C-JCFMPg

Decode the JWT and see what data it stores at:
https://jwt.io/

JWT Tool

Offers an automated way to test JWT tokens and how the site is using them, looks for common vulns

Install

sudo git clone https://github.com/ticarpi/jwt_tool
cd jwt_tool/
python3 -m pip install termcolor cprint pycryptodomex requests

Usage

python3 jwt_tool.py -M at -t "http://104.248.162.85:31635/" -rh "Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VybmFtZSI6InR5bGVyXzdjMDc3NzBmZDciLCJpYXQiOjE2NjQyODc1ODV9.bxi-fAIhRRRuZyP7qZTSIuuSEl8qHwZal86C-JCFMPg"