CVE-2020-13335 : What You Need to Know
Learn about CVE-2020-13335, a GitLab vulnerability allowing improper group membership validation during user account deletion. Find out the impact, affected versions, and mitigation steps.
GitLab vulnerability allowing improper group membership validation during user account deletion.
Understanding CVE-2020-13335
What is CVE-2020-13335?
This CVE involves a security issue in GitLab versions that allows a user to delete their account without deleting or transferring their group due to improper group membership validation.
The Impact of CVE-2020-13335
The vulnerability could lead to unauthorized deletion of user accounts without affecting associated groups, potentially causing data loss or disruption.
Technical Details of CVE-2020-13335
Vulnerability Description
The vulnerability arises from improper group membership validation during user account deletion in GitLab versions >=7.12.
Affected Systems and Versions
- Affected versions include GitLab >=7.12, <13.2.10
- Also affected are versions >=13.3.0, <13.3.7
- Additionally, versions >=13.4.0, <13.4.2 are impacted
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Base Score: 4.3 (Medium)
- Integrity Impact: Low
- Privileges Required: Low
Mitigation and Prevention
Immediate Steps to Take
- Upgrade GitLab to a patched version immediately
- Monitor user account deletions for any suspicious activity
Long-Term Security Practices
- Regularly review and update access control policies
- Conduct security training for users on proper account management
Patching and Updates
- Apply the latest security patches provided by GitLab to address this vulnerability