CVE-2020-13309 Server-side request forgery in GitLab

Medium 5.4 Published Updated

Attackers can perform blind SSRF attacks via the repository mirroring feature in GitLab, potentially accessing internal resources.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2020-13309?

CVE-2020-13309 is a medium-severity server-side request forgery vulnerability in Gitlab Gitlab, published on 14 Sep 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. GitLab was vulnerable to a blind SSRF attack through the repository mirroring feature.

Weakness: CWE-918

Which versions are affected by CVE-2020-13309?

1 open source package ship an affected version, including gitlab. It affects 1 product.

PackageAffectedFixed in
gitlab BitnamiFrom 1.0.013.1.10, 13.2.8, 13.3.4

Products include Gitlab Gitlab.

How do I fix CVE-2020-13309?

Upgrade gitlab to a fixed version for your release line: 13.1.10, 13.2.8 or 13.3.4.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2020-13309 being exploited?

There is no known exploitation of CVE-2020-13309 in the wild and no public exploit code.

All Gitlab Gitlab vulnerabilities

Sources

Also known as BIT-gitlab-2020-13309, GHSA-f435-r8xf-rc9w, UBUNTU-CVE-2020-13309.

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