Critical severity vulnerability that affects Auth0-WCF-Service-JWT
Critical severity
GitHub Reviewed
Published
Apr 18, 2019
to the GitHub Advisory Database
•
Updated Jan 9, 2023
Description
Published to the GitHub Advisory Database
Apr 18, 2019
Reviewed
Jun 16, 2020
Last updated
Jan 9, 2023
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.
References