CVE-2019-10300 : What You Need to Know

Jenkins GitLab Plugin version 1.5.11 and earlier contained a vulnerability that allowed attackers to exploit cross-site request forgery, potentially compromising stored credentials in Jenkins.

Understanding CVE-2019-10300

This CVE involves a security flaw in the Jenkins GitLab Plugin version 1.5.11 and earlier, enabling attackers to perform unauthorized actions.

What is CVE-2019-10300?

CVE-2019-10300 is a cross-site request forgery vulnerability in the GitLabConnectionConfig#doTestConnection method of Jenkins GitLab Plugin versions 1.5.11 and earlier.

The Impact of CVE-2019-10300

The vulnerability allowed attackers to connect to a specific URL using acquired credentials IDs, leading to potential credential exposure and unauthorized access.

Technical Details of CVE-2019-10300

This section provides in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability in Jenkins GitLab Plugin version 1.5.11 and earlier enabled attackers to exploit cross-site request forgery, potentially accessing stored credentials.

Affected Systems and Versions

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

Exploitation Mechanism

Attackers could exploit the vulnerability by using credentials IDs obtained through a separate method to connect to a specific URL, potentially compromising stored credentials in Jenkins.

Mitigation and Prevention

Protecting systems from CVE-2019-10300 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Jenkins GitLab Plugin to a non-vulnerable version.
Monitor and restrict network access to Jenkins instances.
Implement strong credential management practices.

Long-Term Security Practices

Regularly audit and review Jenkins security configurations.
Educate users on secure credential handling practices.
Stay informed about security advisories and updates.

Patching and Updates

Apply security patches provided by Jenkins project promptly.