Vulnerability identifier: #VU55734

Vulnerability risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-22237

CWE-ID: CWE-285

Exploitation vector: Network

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 remote user to bypass implemented security restrictions.

The vulnerability exists due to improper handling of impersonation tokens. Under specialized conditions, GitLab may allow a user with an impersonation token to perform Git actions even if impersonation is disabled.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Gitlab Community Edition: 13.12.0 - 14.1.1

GitLab Enterprise Edition: 13.12.0 - 14.1.1

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External links
http://about.gitlab.com/releases/2021/08/03/security-release-gitlab-14-1-2-released/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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