CVE-2019-1003036 Explained : Impact and Mitigation

The Jenkins Azure VM Agents Plugin 0.8.0 and earlier versions contain a vulnerability that allows attackers with specific permissions to associate a public IP address with an Azure VM agent.

Understanding CVE-2019-1003036

This CVE identifies a security flaw in the Jenkins Azure VM Agents Plugin that could be exploited by attackers with certain permissions.

What is CVE-2019-1003036?

A vulnerability in the Jenkins Azure VM Agents Plugin 0.8.0 and earlier versions allows attackers with Overall/Read permission to attach a public IP address to an Azure VM agent.

The Impact of CVE-2019-1003036

This vulnerability could be exploited by malicious actors to manipulate Azure VM agents, potentially leading to unauthorized access or other security breaches.

Technical Details of CVE-2019-1003036

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The vulnerability exists in the src/main/java/com/microsoft/azure/vmagent/AzureVMAgent.java file within the affected plugin.

Affected Systems and Versions

Product: Jenkins Azure VM Agents Plugin
Vendor: Jenkins project
Vulnerable Versions: 0.8.0 and earlier

Exploitation Mechanism

Attackers with Overall/Read permission can exploit this vulnerability to associate a public IP address with an Azure VM agent.

Mitigation and Prevention

Protecting systems from CVE-2019-1003036 requires immediate action and long-term security practices.

Immediate Steps to Take

Update the Jenkins Azure VM Agents Plugin to a non-vulnerable version.
Restrict permissions for Overall/Read to trusted users only.

Long-Term Security Practices

Regularly monitor and audit permissions within Jenkins.
Implement least privilege access controls to limit potential attack surfaces.
Stay informed about security advisories and updates from Jenkins.
Conduct security training for users with elevated permissions.
Consider implementing network segmentation to isolate critical systems.

Patching and Updates

Ensure that all software components, including plugins, are regularly updated to the latest secure versions to mitigate known vulnerabilities.