Vulnerability identifier: #VU31065

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-2019-10112

CWE-ID: CWE-320

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Gitlab Community Edition
Universal components / Libraries / Software for developers

Vendor: GitLab, Inc

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

An issue was discovered in GitLab Community and Enterprise Edition before 11.7.8, 11.8.x before 11.8.4, and 11.9.x before 11.9.2. The construction of the HMAC key was insecurely derived.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Gitlab Community Edition: 11.9.0 - 11.9.1

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External links
http://about.gitlab.com/2019/04/01/security-release-gitlab-11-dot-9-dot-4-released/
http://about.gitlab.com/blog/categories/releases/
http://gitlab.com/gitlab-org/gitlab-ee/issues/9730

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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.