CVE-2019-10111 Explained : Impact and Mitigation
Learn about CVE-2019-10111, a vulnerability in GitLab versions before 11.7.8, 11.8.x before 11.8.4, and 11.9.x before 11.9.2 enabling persistent XSS attacks on the 'resolve conflicts' page.
A vulnerability has been identified in GitLab Community and Enterprise Edition versions preceding 11.7.8, 11.8.x preceding 11.8.4, and 11.9.x preceding 11.9.2. This vulnerability enables persistent cross-site scripting (XSS) on the 'resolve conflicts' page of a merge request.
Understanding CVE-2019-10111
This CVE refers to a security issue in GitLab versions prior to specific releases that allows for persistent XSS attacks.
What is CVE-2019-10111?
CVE-2019-10111 is a vulnerability in GitLab Community and Enterprise Edition that permits persistent cross-site scripting on the 'resolve conflicts' page of a merge request.
The Impact of CVE-2019-10111
The vulnerability could be exploited by attackers to execute malicious scripts in the context of a user's session, potentially leading to unauthorized actions or data theft.
Technical Details of CVE-2019-10111
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The issue allows for persistent XSS in the 'resolve conflicts' page of merge requests in affected GitLab versions.
Affected Systems and Versions
- GitLab Community and Enterprise Edition versions before 11.7.8
- GitLab 11.8.x before 11.8.4
- GitLab 11.9.x before 11.9.2
Exploitation Mechanism
The vulnerability enables attackers to inject and execute malicious scripts within the 'resolve conflicts' page, potentially compromising user data and system integrity.
Mitigation and Prevention
Protecting systems from CVE-2019-10111 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update GitLab to versions 11.7.8, 11.8.4, or 11.9.2 or newer to mitigate the vulnerability.
- Monitor for any suspicious activities on the 'resolve conflicts' page.
Long-Term Security Practices
- Implement strict input validation to prevent XSS attacks.
- Educate users on recognizing and avoiding malicious scripts.
Patching and Updates
- Regularly apply security patches and updates provided by GitLab to address known vulnerabilities.