CVE-2021-22243 Auth bypass in GitLab

Medium 5.0 Published Updated

GitLab users can exploit invite URLs to gain unauthorized access to groups, potentially reading sensitive data or escalating privileges.

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-2021-22243?

CVE-2021-22243 is a medium-severity authentication bypass vulnerability in Gitlab Gitlab, published on 25 Aug 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Under specialized conditions, GitLab CE/EE versions starting 7.10 may allow existing GitLab users to use an invite URL meant for another email address to gain access into a group.

Weakness: CWE-863

Which versions are affected by CVE-2021-22243?

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

PackageAffectedFixed in
gitlab BitnamiFrom 7.10.013.12.9, 14.0.7, 14.1.2

Products include Gitlab Gitlab.

How do I fix CVE-2021-22243?

Upgrade gitlab to a fixed version for your release line: 13.12.9, 14.0.7 or 14.1.2.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2021-22243 being exploited?

There is no known exploitation of CVE-2021-22243 in the wild and no public exploit code.

All Gitlab Gitlab vulnerabilities

Sources

Also known as BIT-gitlab-2021-22243, GHSA-q7jc-qjq2-4cmx, UBUNTU-CVE-2021-22243.

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