GHSA-2frx-j9hj-6c65 User enumeration in authentication mechanisms
Attackers can enumerate valid usernames via distinct error messages, enabling targeted attacks against the LexikJWTAuthenticationBundle.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is GHSA-2frx-j9hj-6c65?
GHSA-2frx-j9hj-6c65 is a vulnerability in lexik/jwt-authentication-bundle, published on 17 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Description
The ability to enumerate users was possible without relevant permissions due to different exception messages depending on whether the user existed or not.
Resolution
We now ensure that a generic message is returned whether the user exists or not if the password is invalid or if the user does not exist.
The patch for this issue is available here for branch 2.10.x and 2.x.
Credits
I would like to thank James Isaac and Mathias Brodala for reporting the issue and Robin Chalas for fixing the issue.
Which versions are affected by GHSA-2frx-j9hj-6c65?
4 open source packages ship an affected version, including lexik/jwt-authentication-bundle.
| Package | Affected | Fixed in |
|---|---|---|
lexik/jwt-authentication-bundle Packagist | All versions | 2.10.7 |
lexik/jwt-authentication-bundle Packagist | All versions | 2.10.7 |
lexik/jwt-authentication-bundle Packagist | From 2.11.0 | 2.11.3 |
lexik/jwt-authentication-bundle Packagist | From 2.11.0 | 2.11.3 |
How do I fix GHSA-2frx-j9hj-6c65?
Upgrade lexik/jwt-authentication-bundle to a fixed version for your release line: 2.10.7 or 2.11.3.
Is GHSA-2frx-j9hj-6c65 being exploited?
There is no known exploitation of GHSA-2frx-j9hj-6c65 in the wild and no public exploit code.