CVE-2022-1981 Explained : Impact and Mitigation

An overview of the security vulnerability in GitLab affecting versions prior to 14.10.5, 15.0.4, and 15.1.1.

Understanding CVE-2022-1981

This vulnerability identified in GitLab allows a bypass of domain allow-list restrictions, potentially compromising access control.

What is CVE-2022-1981?

GitLab versions starting from 12.2 to 14.10.5, 15.0 to 15.0.4, and 15.1 to 15.1.1 are vulnerable due to improper domain allow-list restrictions.

The Impact of CVE-2022-1981

The vulnerability could lead to unauthorized access if a Maintainer misuses the 'Invite a group' feature to bypass domain restrictions.

Technical Details of CVE-2022-1981

A closer look at the vulnerability specifics, affected systems, and exploitation methods.

Vulnerability Description

The flaw in GitLab's access control logic allows a Maintainer to invite users from unauthorized domains, bypassing restrictions.

Affected Systems and Versions

GitLab versions between 12.2 to 14.10.5, 15.0 to 15.0.4, and 15.1 to 15.1.1 are susceptible to this security issue.

Exploitation Mechanism

By utilizing the 'Invite a group' functionality, Maintainers can bring in users from non-compliant domains, circumventing access restrictions.

Mitigation and Prevention

Best practices to address and prevent the CVE-2022-1981 vulnerability.

Immediate Steps to Take

Disable the 'Invite a group' feature in GitLab to mitigate the risk of unauthorized domain bypasses.

Long-Term Security Practices

Regularly review and update domain allow-lists to ensure they align with security policies and access restrictions.

Patching and Updates

GitLab users are advised to update to versions 14.10.5, 15.0.4, or 15.1.1 to patch the vulnerability and enhance access control measures.