Attacking JWT's
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Iโm excited to share the recent workshop I conducted on Attacking JWT, which focuses on understanding and exploiting common security issues in JSON Web Tokens (JWTs)โa core authentication mechanism used in modern web applications.
JWTs are widely adopted in APIs, single-page applications, mobile apps, and microservices. While they are designed to be secure and scalable, misconfigurations and poor implementation choices can lead to critical security vulnerabilities.
Attacking JWTs
The repository provides hands-on examples of practical JWT attack techniques, such as:
- Algorithm Confusion Attacks (switching between RS256 and HS256)
- Brute-forcing JWT secrets
- Token tampering and claim manipulation
- Exploiting None algorithm vulnerabilities
- Abusing weak or leaked signing keys
JWTs themselves are not insecureโbut misconfigured JWT implementations are a common cause of severe security breaches. The Attacking JWT repository serves as a practical guide to understanding how JWT vulnerabilities arise and how they can be exploited in real-world scenarios.
Repo Link: https://github.com/mrrootsec/Attacking-JWT/
Stay curious and keep learning! ๐