Vulnerability identifier: #VU48968

Vulnerability risk: Low

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

CVE-ID: CVE-2020-13357

CWE-ID: CWE-284

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 attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions to feature flag user list. A remote user can get access the user list corresponding to a feature flag in a project.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Gitlab Community Edition: 13.1.0 - 13.5.4

GitLab Enterprise Edition: 13.1.0 - 13.5.4

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External links
http://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13357.json
http://gitlab.com/gitlab-org/gitlab/-/issues/241132
http://hackerone.com/reports/962408

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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.