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JSON Web Token Attacker

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JOSEPH - JavaScript Object Signing and Encryption Pentesting Helper

This extension helps to test applications that use JavaScript Object Signing and Encryption, including JSON Web Tokens.

Features

  • Recognition and marking
  • JWS/JWE editors
  • (Semi-)Automated attacks
    • Bleichenbacher MMA
    • Key Confusion (aka Algorithm Substitution)
    • Signature Exclusion
  • Base64url en-/decoder
  • Easy extensibility of new attacks

Author

 Author

Dennis Detering

Version

 Version

1.0.2a

Rating

 Rating

Popularity

 Popularity

Last updated

 Last updated

04 February 2022

Estimated system impact

 Estimated system impact

Overall impact: Medium

Memory
Medium
CPU
Low
General
Low
Scanner
Low

You can install BApps directly within Burp, via the BApp Store feature in the Burp Extender tool. You can also download them from here, for offline installation into Burp.

You can view the source code for all BApp Store extensions on our GitHub page.

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Please note that extensions are written by third party users of Burp, and PortSwigger Web Security makes no warranty about their quality or usefulness for any particular purpose.

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Note:

Please note that extensions are written by third party users of Burp, and PortSwigger Web Security makes no warranty about their quality or usefulness for any particular purpose.