CVE-2019-10301 Explained : Impact and Mitigation

Jenkins GitLab Plugin versions 1.5.11 and earlier are affected by a vulnerability that allows attackers with specific permissions to access credentials stored in Jenkins.

Understanding CVE-2019-10301

This CVE describes a missing permission check in the Jenkins GitLab Plugin that could lead to unauthorized access to sensitive information.

What is CVE-2019-10301?

A vulnerability in Jenkins GitLab Plugin versions 1.5.11 and below allows attackers with certain permissions to establish connections to URLs and retrieve stored credentials.

The Impact of CVE-2019-10301

The absence of a permission check enables attackers to access credentials stored in Jenkins, potentially leading to unauthorized data retrieval and misuse.

Technical Details of CVE-2019-10301

Jenkins GitLab Plugin versions 1.5.11 and earlier are susceptible to exploitation due to a lack of proper permission validation.

Vulnerability Description

The GitLabConnectionConfig#doTestConnection method in affected versions lacks a permission check, enabling attackers with specific permissions to connect to URLs and retrieve credentials.

Affected Systems and Versions

Product: Jenkins GitLab Plugin
Vendor: Jenkins project
Versions: 1.5.11 and earlier

Exploitation Mechanism

Attackers with Overall/Read permissions can exploit this vulnerability to establish connections to URLs using credentials IDs obtained through other means.

Mitigation and Prevention

To address CVE-2019-10301, immediate actions and long-term security practices are recommended.

Immediate Steps to Take

Update Jenkins GitLab Plugin to a patched version.
Restrict permissions for accessing sensitive information.

Long-Term Security Practices

Regularly review and update security configurations.
Implement least privilege access controls.
Monitor and audit access to critical systems.

Patching and Updates

Ensure timely installation of security patches and updates to mitigate the risk of exploitation.