Improper Authentication in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2021-22171
Published: January 8, 2021 / Updated: January 24, 2021
Vulnerability identifier: #VU49353
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-22171
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in when processing authentication requests. A remote attacker can steal a user's API acces token through Gitlab pages, bypass the authentication process and gain unauthorized access to the application.
Affected software
GitLab Enterprise Edition
Gitlab Community Edition
Gitlab Community Edition
How to mitigate CVE-2021-22171
Install updates from vendor's website.
GitLab Enterprise Edition - addressed in versions 13.5.6, 13.6.4, 13.7.2
Gitlab Community Edition - addressed in versions 13.5.6, 13.6.4
Gitlab Community Edition - addressed in versions 13.5.6, 13.6.4