Improper access control in GitLab Community Edition (CE) and Enterprise Edition (EE)

1) Improper access control

EUVDB-ID: #VU85322

Risk: Medium

CVSSv3.1: 6.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4812

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote user can bypass the required CODEOWNERS approval by adding changes to a previously approved merge request.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Gitlab Community Edition: 15.3.0 - 16.7.1

GitLab Enterprise Edition: 15.3.0 - 16.7.1

CPE2.3

• cpe:2.3:a:gitlab:gitlab:15.11.13:*:*:*:*:*:*:*
• cpe:2.3:a:gitlab:gitlab:15.11.12:*:*:*:*:*:*:*
• cpe:2.3:a:gitlab:gitlab:15.11.11:*:*:*:*:*:*:*
• cpe:2.3:a:gitlab:gitlab-ee:15.3.5:*:*:*:*:*:*:*
• cpe:2.3:a:gitlab:gitlab-ee:15.3.4:*:*:*:*:*:*:*
• cpe:2.3:a:gitlab:gitlab-ee:15.3.3:*:*:*:*:*:*:*

External links

http://about.gitlab.com/releases/2024/01/11/critical-security-release-gitlab-16-7-2-released/

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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