CVE-2020-13305 : What You Need to Know
Discover the security vulnerability in GitLab versions before 13.1.10, 13.2.8, and 13.3.4. Learn about the impact, affected systems, exploitation risks, and mitigation steps for CVE-2020-13305.
A vulnerability in GitLab versions before 13.1.10, 13.2.8, and 13.3.4 could allow improper authentication, impacting the project's invitation link validation.
Understanding CVE-2020-13305
This CVE involves a security issue in GitLab versions that could potentially lead to unauthorized access due to the failure to invalidate project invitation links when a user is removed from a project.
What is CVE-2020-13305?
The vulnerability found in GitLab versions prior to 13.1.10, 13.2.8, and 13.3.4 allows for improper authentication, posing a risk to the security of user access control.
The Impact of CVE-2020-13305
The vulnerability could result in unauthorized access to project resources, potentially compromising the confidentiality and integrity of data within GitLab instances.
Technical Details of CVE-2020-13305
This section provides a deeper insight into the technical aspects of the CVE.
Vulnerability Description
The vulnerability arises from GitLab's failure to invalidate project invitation links when a user is removed, leading to a potential security gap in user access control.
Affected Systems and Versions
- Product: GitLab
- Vendor: GitLab
- Affected Versions:
=1.0, <13.1.10
=13.2, <13.2.8
=13.3, <13.3.4
Exploitation Mechanism
The vulnerability can be exploited by malicious actors to gain unauthorized access to project resources by utilizing the unexpired project invitation links.
Mitigation and Prevention
To address and prevent the exploitation of CVE-2020-13305, the following steps are recommended:
Immediate Steps to Take
- Upgrade GitLab to versions 13.1.10, 13.2.8, or 13.3.4 or later to mitigate the vulnerability.
- Monitor project invitation links for any suspicious activity.
Long-Term Security Practices
- Regularly review and update access control policies within GitLab.
- Conduct security training for users to raise awareness of proper access management.
Patching and Updates
- Stay informed about security updates and patches released by GitLab to address vulnerabilities like CVE-2020-13305.