CVE-2019-1003034 : Exploit Details and Defense Strategies

A vulnerability exists in versions 1.71 and earlier of the Jenkins Job DSL Plugin, allowing attackers to execute arbitrary code on the Jenkins master JVM.

Understanding CVE-2019-1003034

This CVE involves a sandbox bypass vulnerability in the Jenkins Job DSL Plugin.

What is CVE-2019-1003034?

This vulnerability in the Jenkins Job DSL Plugin version 1.71 and earlier enables attackers with control over Job DSL definitions to run arbitrary code on the Jenkins master JVM.

The Impact of CVE-2019-1003034

Attackers exploiting this vulnerability can execute malicious code on the Jenkins master JVM, potentially leading to unauthorized access and data breaches.

Technical Details of CVE-2019-1003034

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows attackers to bypass the sandbox in the Jenkins Job DSL Plugin, enabling the execution of arbitrary code on the Jenkins master JVM.

Affected Systems and Versions

Product: Jenkins Job DSL Plugin
Vendor: Jenkins project
Versions Affected: 1.71 and earlier

Exploitation Mechanism

Attackers need control over Job DSL definitions to exploit this vulnerability and execute arbitrary code on the Jenkins master JVM.

Mitigation and Prevention

Protecting systems from CVE-2019-1003034 is crucial to maintaining security.

Immediate Steps to Take

Update the Jenkins Job DSL Plugin to a non-vulnerable version.
Monitor and restrict access to Job DSL definitions to authorized personnel.

Long-Term Security Practices

Regularly review and update Jenkins plugins to ensure the latest security patches are applied.
Implement strict access controls and least privilege principles to limit exposure to vulnerabilities.

Patching and Updates

Apply security patches and updates provided by Jenkins project to address the CVE-2019-1003034 vulnerability.