CVE-2020-2228 : Security Advisory and Response

Jenkins Gitlab Authentication Plugin 1.5 and earlier versions have a privilege escalation vulnerability due to improper group authorization checks.

Understanding CVE-2020-2228

Jenkins Gitlab Authentication Plugin has a security issue that allows privilege escalation.

What is CVE-2020-2228?

This CVE refers to a vulnerability in Jenkins Gitlab Authentication Plugin versions 1.5 and earlier, where group authorization checks are not performed correctly, leading to a privilege escalation risk.

The Impact of CVE-2020-2228

The vulnerability can be exploited by attackers to escalate their privileges within the Jenkins environment, potentially gaining unauthorized access to sensitive information or performing malicious actions.

Technical Details of CVE-2020-2228

The technical aspects of the vulnerability are as follows:

Vulnerability Description

Jenkins Gitlab Authentication Plugin 1.5 and earlier versions lack proper group authorization checks, enabling attackers to escalate their privileges.

Affected Systems and Versions

Product: Jenkins Gitlab Authentication Plugin
Vendor: Jenkins project
Versions Affected: <= 1.5 (unspecified version type)

Exploitation Mechanism

The vulnerability can be exploited by malicious users to bypass group authorization checks and gain elevated privileges within the Jenkins environment.

Mitigation and Prevention

To address CVE-2020-2228, consider the following steps:

Immediate Steps to Take

Upgrade Jenkins Gitlab Authentication Plugin to a patched version.
Monitor and restrict user permissions to minimize the impact of privilege escalation.

Long-Term Security Practices

Regularly review and update access control policies.
Conduct security training for users to raise awareness about privilege escalation risks.

Patching and Updates

Apply security patches and updates promptly to ensure the latest fixes are in place.