#VU54088 Insufficient Session Expiration in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2021-22221

Vulnerability identifier: #VU54088

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-22221

CWE-ID: CWE-613

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 access to sensitive information.

The vulnerability exists due to insufficient session expiration issue. A remote non-authenticated attacker can obtain or guess session token and gain unauthorized access to session that belongs to another user.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Gitlab Community Edition: 12.9.0 - 13.12.1

GitLab Enterprise Edition: 12.9.0 - 13.12.0

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External links
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22221.json
https://gitlab.com/gitlab-org/gitlab/-/issues/292006

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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.