CVE-2021-22182 : Vulnerability Insights and Analysis
Learn about CVE-2021-22182 affecting GitLab versions >=13.7. Discover impact, technical details, and mitigation steps to secure your GitLab instances.
An issue has been discovered in GitLab affecting all versions starting with 13.7. This vulnerability allows for stored Cross-Site Scripting (XSS) attacks in merge requests.
Understanding CVE-2021-22182
This CVE affects GitLab versions starting from 13.7 and allows malicious actors to execute arbitrary scripts in the context of a victim's session.
What is CVE-2021-22182?
CVE-2021-22182 is a security vulnerability found in GitLab software that enables stored XSS attacks in merge requests, potentially leading to unauthorized access or data theft.
The Impact of CVE-2021-22182
The impact of this vulnerability is considered low with a CVSS base score of 3.5. It can result in unauthorized script execution, posing a risk to the confidentiality of data within GitLab instances.
Technical Details of CVE-2021-22182
This section outlines specific technical details of the CVE.
Vulnerability Description
The vulnerability arises due to improper neutralization of input during web page generation, allowing attackers to inject malicious scripts into merge requests.
Affected Systems and Versions
GitLab versions >=13.7 and <13.8.2, as well as versions >=13.8 and <13.8.6, are affected by this vulnerability.
Exploitation Mechanism
Exploiting CVE-2021-22182 involves crafting a merge request containing malicious scripts that, when executed, can compromise the security and integrity of GitLab instances.
Mitigation and Prevention
Here are some steps to mitigate and prevent exploitation of this vulnerability:
Immediate Steps to Take
- Update GitLab to a version that includes a patch addressing CVE-2021-22182.
- Educate users on recognizing and avoiding suspicious merge requests.
Long-Term Security Practices
- Regularly monitor GitLab security advisories for updates and patches.
- Conduct security training for developers to promote secure coding practices.
Patching and Updates
Ensure timely application of security patches provided by GitLab to safeguard against known vulnerabilities and security threats.