CVE-2019-5466 Explained : Impact and Mitigation
Discover the Insecure Direct Object Reference (IDOR) vulnerability in GitLab CE/EE versions 11.5 and above, potentially exposing label names. Learn about the impact, affected systems, exploitation, and mitigation steps.
A security vulnerability known as an Insecure Direct Object Reference (IDOR) was discovered in GitLab CE/EE versions 11.5 and above. This vulnerability could potentially expose label names through the new merge requests endpoint.
Understanding CVE-2019-5466
This section provides insights into the nature and impact of the CVE-2019-5466 vulnerability.
What is CVE-2019-5466?
CVE-2019-5466 refers to an Insecure Direct Object Reference (IDOR) flaw found in GitLab CE/EE versions 11.5 and later. This vulnerability could be exploited to reveal label names through the new merge requests endpoint.
The Impact of CVE-2019-5466
The vulnerability in GitLab CE/EE versions 11.5 and above could potentially lead to the exposure of sensitive label names, posing a risk to the confidentiality of data.
Technical Details of CVE-2019-5466
This section delves into the technical aspects of the CVE-2019-5466 vulnerability.
Vulnerability Description
The IDOR vulnerability in GitLab CE/EE versions 11.5 and later allows attackers to access label names through the new merge requests endpoint, compromising data confidentiality.
Affected Systems and Versions
- Product: GitLab CE/EE
- Versions Affected: 11.5 and later
- Fixed Versions: 12.1.2, 12.0.4, 11.11.6
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating object references in GitLab CE/EE versions 11.5 and above to gain unauthorized access to label names.
Mitigation and Prevention
In this section, you will find recommendations on how to mitigate and prevent the CVE-2019-5466 vulnerability.
Immediate Steps to Take
- Upgrade affected GitLab CE/EE instances to the fixed versions: 12.1.2, 12.0.4, or 11.11.6
- Monitor and restrict access to sensitive label names and data
Long-Term Security Practices
- Implement access controls and proper authorization mechanisms
- Regularly update and patch GitLab CE/EE installations
Patching and Updates
Ensure timely installation of security patches and updates provided by GitLab to address vulnerabilities like CVE-2019-5466.