CVE-2020-13263 : Security Advisory and Response
Learn about CVE-2020-13263, an authorization problem in GitLab versions 9.5 to 13.0.1 allowing unauthorized users to impersonate project maintainers. Find mitigation steps and patching details here.
An authorization issue in GitLab versions 9.5 to 13.0.1 allows unauthorized users to impersonate project maintainers.
Understanding CVE-2020-13263
An overview of the GitLab vulnerability affecting versions 9.5 to 13.0.1.
What is CVE-2020-13263?
This CVE identifies an authorization problem in GitLab EE versions 9.5 through 13.0.1, enabling unauthorized users to impersonate project maintainers and perform restricted actions.
The Impact of CVE-2020-13263
- CVSS Base Score: 7.5 (High)
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: Low
- Confidentiality, Integrity, and Availability Impact: High
Technical Details of CVE-2020-13263
Insights into the technical aspects of the GitLab vulnerability.
Vulnerability Description
The vulnerability allows unauthorized users to impersonate project maintainers, potentially leading to unauthorized actions within GitLab.
Affected Systems and Versions
- Affected Versions: GitLab EE >=9.5, <12.9.8, >=12.10, <12.10.7, >=13.0, <13.0.1
Exploitation Mechanism
The issue arises from improper authorization controls, enabling unauthorized users to exploit the impersonation vulnerability.
Mitigation and Prevention
Measures to address and prevent the CVE-2020-13263 vulnerability.
Immediate Steps to Take
- Upgrade GitLab to a patched version immediately.
- Monitor and restrict access to sensitive project maintainer functions.
Long-Term Security Practices
- Regularly review and update access control policies.
- Conduct security training to educate users on proper authorization practices.
Patching and Updates
- Apply security patches provided by GitLab to fix the vulnerability.