Results for “jwt-bearer”

Assess JSON Web Token implementations for cryptographic weaknesses, algorithm confusion attacks, and authorization bypass vulnerabilities during security engagements.

Test JWT implementations for critical vulnerabilities including algorithm confusion, none algorithm bypass, kid parameter injection, and weak secret exploitation to achieve authentication bypass and privilege escalation.

Provides exact payloads and bypass techniques for every PortSwigger JWT authentication lab variant, from unverified signatures to algorithm confusion attacks.

Test JWT signature verification bypass by crafting tokens with the 'none' algorithm.

Exploit JWT algorithm confusion vulnerabilities by manipulating the alg header to switch from RS256 to HS256, set alg to none, or inject kid/jku/x5u headers to bypass signature verification.