Vulnerability identifier: #VU25040

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7968

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

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

Vendor: GitLab, Inc

Description

The vulnerability allows a remote attacker to gain unauthorized access to sensitive information.

The vulnerability exists due to the authorization checks were not being applied in some cases for public repositories with merge request visibility set to members only. A remote attacker can disclose the Forked Private Project Source Code.

Mitigation
Install update from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 7.12.0 - 12.7.2

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External links
http://about.gitlab.com/blog/categories/releases/
http://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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