#VU28320 Improper Authorization in GitLab Enterprise Edition and Gitlab Community Edition

Vulnerability identifier: #VU28320

Vulnerability risk: Medium

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

CVE-ID: N/A

CWE-ID: CWE-285

Exploitation vector: Network

Exploit availability: No

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

Vendor: GitLab, Inc

Description

The vulnerability allows a remote attacker to bypass email verification process.

The vulnerability exists due to the way Gitlab processes email verification within the OAuth flow. A remote attacker can bypass email verification process during registration.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 12.3.0 - 13.0.0

Gitlab Community Edition: 12.3.0 - 13.0.0

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External links
https://about.gitlab.com/releases/2020/05/27/security-release-13-0-1-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.