CVE-2020-13358 — A vulnerability in the internal Kubernetes agent api in GitLab CE/EE version 13

A vulnerability in the internal Kubernetes agent api in GitLab CE/EE version 13.3 and above allows unauthorized access to private projects. Affected versions are: >=13.4, <13.4.5,>=13.3, <13.3.9,>=13.5, <13.5.2.

01What is this vulnerability?

A vulnerability in the internal Kubernetes agent api in GitLab CE/EE version 13.3 and above allows unauthorized access to private projects. Affected versions are: >=13.4, <13.4.5,>=13.3, <13.3.9,>=13.5, <13.5.2.

02Affected products

Vendor	Product	Versions
GitLab	Gitlab CE/EE	>=13.4, <13.4.5, >=13.3, <13.3.9, >=13.5, <13.5.2

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2020-11-17T00:20:25.000Z
• Last modified: 2024-08-04T12:18:17.461Z

09References

• gitlab.com — https://gitlab.com/gitlab-org/gitlab/-/issues/241674
• gitlab.com — https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13358.json