Information indsclosure in GitLab Enterprise Edition

1) Information disclosure

EUVDB-ID: #VU18875

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-6797

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

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

The vulnerability exists due to the GitHub token used in CI/CD for External Repos was being leaked to project maintainers via user intreface. A remote authenticated attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 11.5.0 - 11.7.0

CPE2.3

• cpe:2.3:a:gitlab:gitlab-ee:11.5.0:*:*:*:*:*:*:*
• cpe:2.3:a:gitlab:gitlab-ee:11.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:gitlab:gitlab-ee:11.5.2:*:*:*:*:*:*:*

External links

https://about.gitlab.com/2019/01/31/security-release-gitlab-11-dot-7-dot-3-released/
https://about.gitlab.com/blog/categories/releases/

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.