Vulnerability identifier: #VU57052

Vulnerability risk: Low

CVSSv3.1: 2 [CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-39879

CWE-ID: CWE-287

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Gitlab Community Edition
Universal components / Libraries / Software for developers
GitLab Enterprise Edition
Universal components / Libraries / Software for developers

Vendor: GitLab, Inc

Description

The vulnerability allows a local user to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests. A local user can disable two-factor authentication.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Gitlab Community Edition: 7.11 - 14.3.0

GitLab Enterprise Edition: 7.11.0 - 14.3.0

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External links
http://about.gitlab.com/releases/2021/09/30/security-release-gitlab-14-3-1-released/

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.