CVE-2021-22232 : Vulnerability Insights and Analysis

HTML injection was possible via the full name field before versions 13.11.6, 13.12.6, and 14.0.2 in GitLab CE.

Understanding CVE-2021-22232

This CVE-2021-22232 impacts GitLab versions 9.5 to 14.0.2, allowing HTML injection through the full name field.

What is CVE-2021-22232?

CVE-2021-22232 is a vulnerability in GitLab that enables HTML injection via the full name field, affecting versions 9.5 to 14.0.2.

The Impact of CVE-2021-22232

The impact of CVE-2021-22232 is rated with a CVSS base score of 3.5, classified as low severity. It requires user interaction to be exploited and has a low impact on confidentiality and integrity.

Technical Details of CVE-2021-22232

The vulnerability involves HTML injection through the full name field in GitLab, potentially leading to security breach.

Vulnerability Description

HTML injection was feasible in GitLab versions 9.5 to 14.0.2 due to improper handling of user input in the full name field.

Affected Systems and Versions

GitLab versions affected by this vulnerability are >=9.5, <13.11.6, >=13.12, <13.12.6, and >=14.0, <14.0.2.

Exploitation Mechanism

Attackers could exploit this vulnerability by injecting malicious HTML code via the full name field in affected GitLab versions.

Mitigation and Prevention

To safeguard against CVE-2021-22232, users are advised to take immediate steps along with implementing long-term security practices and applying available patches and updates.

Immediate Steps to Take

Ensure that user inputs are sanitized, and restrict the use of special characters in the full name field to prevent HTML injection attacks.

Long-Term Security Practices

Regularly update GitLab to the latest version, conduct security audits, and educate users on secure coding practices to mitigate similar vulnerabilities.

Patching and Updates

GitLab users should install the relevant patches provided by the vendor to address the HTML injection vulnerability in the full name field.