CVE-2021-22243 : Security Advisory and Response

A detailed overview of CVE-2021-22243 affecting GitLab.

Understanding CVE-2021-22243

This section provides insights into the vulnerability found in GitLab.

What is CVE-2021-22243?

Under specialized conditions, GitLab versions starting from 7.10 may allow existing users to utilize an invite URL meant for another email address to access a group.

The Impact of CVE-2021-22243

The vulnerability poses a medium severity risk with a base score of 5, potentially granting unauthorized access under specific circumstances.

Technical Details of CVE-2021-22243

Explore the technical specifics of CVE-2021-22243 to better understand the issue.

Vulnerability Description

The vulnerability arises due to missing authorization controls in GitLab, allowing user manipulation through invite URLs.

Affected Systems and Versions

GitLab versions >=7.10 and <13.12.9, >=14.0 and <14.0.7, >=14.1 and <14.1.2 are impacted by this security flaw.

Exploitation Mechanism

With low privileges required, attackers can exploit this over a network without user interaction, impacting confidentiality, integrity, and availability.

Mitigation and Prevention

Discover the steps to mitigate and prevent the CVE-2021-22243 vulnerability.

Immediate Steps to Take

Users are advised to update GitLab to secure versions and review user access permissions to prevent unauthorized entry.

Long-Term Security Practices

Establish robust authorization protocols, conduct regular security audits, and educate users on safe URL usage to enhance system security.

Patching and Updates

Apply security patches provided by GitLab promptly to address the vulnerability and strengthen system defenses.