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CVE-2019-7644GHSA-QPVX-GPQM-G98J

Auth0 Auth0-WCF-Service-JWT before 1.0.4 leaks the expected JWT signature in an error message when it cannot successfully validate the JWT s

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.0.4
None on Exploit-DB, Metasploit or GitHub

Summary

Auth0 Auth0-WCF-Service-JWT before 1.0.4 leaks the expected JWT signature in an error message when it cannot successfully validate the JWT signature. If this error message is presented to an attacker, they can forge an arbitrary JWT token that will be accepted by the vulnerable application.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • n/a n/a

    Version range not reported

  • Auth0-WCF-Service-JWTNuGet

    fixed in 1.0.4

References 1

auth0.com