CVE-2019-1003079 : Exploit Details and Defense Strategies

A vulnerability in the Jenkins VMware Lab Manager Slaves Plugin allows users with Overall/Read permission to establish a connection with a server specified by an attacker.

Understanding CVE-2019-1003079

This CVE involves a missing permission check in the Jenkins VMware Lab Manager Slaves Plugin, potentially enabling unauthorized connections.

What is CVE-2019-1003079?

The absence of a permission check in the form validation method LabManager.DescriptorImpl#doTestConnection of the Jenkins VMware Lab Manager Slaves Plugin allows users with Overall/Read permission to connect to a server specified by an attacker.

The Impact of CVE-2019-1003079

This vulnerability could be exploited by malicious actors with specific permissions to establish unauthorized connections, posing a security risk to the affected systems.

Technical Details of CVE-2019-1003079

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

Vulnerability Description

The vulnerability arises from a lack of permission validation in the form validation method of the Jenkins VMware Lab Manager Slaves Plugin, enabling unauthorized connections.

Affected Systems and Versions

Product: Jenkins VMware Lab Manager Slaves Plugin
Vendor: Jenkins project
Versions: All versions as of 2019-04-03

Exploitation Mechanism

Attackers with Overall/Read permission can exploit this vulnerability to connect to a server they specify, potentially leading to unauthorized access.

Mitigation and Prevention

To address and prevent the exploitation of CVE-2019-1003079, the following steps are recommended:

Immediate Steps to Take

Update the Jenkins VMware Lab Manager Slaves Plugin to the latest version.
Restrict permissions for users to minimize the risk of unauthorized connections.

Long-Term Security Practices

Regularly review and update permission settings within Jenkins to ensure proper access control.
Conduct security training for users to raise awareness of potential risks and best practices.

Patching and Updates

Stay informed about security advisories and promptly apply patches released by Jenkins to address known vulnerabilities.