tldr/pages/common/flask-unsign.md

flask-unsign

A tool to brute-force, decode and craft Flask session cookies. More information: https://github.com/Paradoxis/Flask-Unsign.

• Decode a Flask session cookie:

flask-unsign {{[-d|--decode]}} {{[-c|--cookie]}} {{cookie}}

• Decode a session cookie fetched from a URL which returns a Set-Cookie header:

flask-unsign {{[-d|--decode]}} --server {{URL}}

• Brute-force a secret key using the default flask-unsign-wordlist (requires flask-unsign-wordlist):

flask-unsign {{[-u|--unsign]}} {{[-c|--cookie]}} {{cookie}}

• Brute-force a secret key with a custom wordlist (use --no-literal-eval for unquoted entries):

flask-unsign {{[-u|--unsign]}} {{[-c|--cookie]}} {{cookie}} {{[-w|--wordlist]}} {{path/to/wordlist.txt}}

• Sign a new session cookie with a secret key:

flask-unsign {{[-s|--sign]}} {{[-c|--cookie]}} {{"{'logged_in': False}"}} {{[-S|--secret]}} {{secret}}

• Sign a session cookie using legacy timestamp (useful for old versions):

flask-unsign {{[-s|--sign]}} {{[-c|--cookie]}} {{"{'logged_in': False}"}} {{[-S|--secret]}} {{secret}} {{[-l|--legacy]}}

• Brute-force a session cookie with custom threads and no literal evaluation:

flask-unsign {{[-u|--unsign]}} {{[-c|--cookie]}} {{cookie}} {{[-w|--wordlist]}} {{path/to/wordlist.txt}} {{[-t|--threads]}} {{threads}} {{[-nE|--no-literal-eval]}}