JWT Security Testing
JWT Security Testing
Purpose
Identify and exploit vulnerabilities in JSON Web Token (JWT) implementations, including algorithm confusion attacks, secret key cracking, signature bypass, and claim manipulation. JWTs are widely used for authentication and authorization, making them high-value targets for security testing.
Prerequisites
Required Tools
- jwt_tool (Python JWT manipulation)
- Burp Suite with JWT extensions
- Hashcat or John the Ripper for cracking
- Python with PyJWT library
- jwt.io for decoding
Required Knowledge
- JWT structure and claims
- Cryptographic signing algorithms
- HTTP authentication mechanisms
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