CVE-2019-10458 : Security Advisory and Response

Jenkins Puppet Enterprise Pipeline 1.3.1 and earlier versions are affected by a vulnerability that allows attackers to execute arbitrary code through the custom Script Security whitelist.

Understanding CVE-2019-10458

This CVE identifies a security issue in Jenkins Puppet Enterprise Pipeline versions 1.3.1 and below, potentially enabling the execution of arbitrary code.

What is CVE-2019-10458?

The vulnerability in Jenkins Puppet Enterprise Pipeline 1.3.1 and earlier versions arises from unsafe values in the custom Script Security whitelist. Attackers with the ability to run protected scripts using Script Security can exploit this flaw to execute arbitrary code.

The Impact of CVE-2019-10458

The presence of this vulnerability can lead to severe consequences, allowing malicious actors to execute unauthorized code within the affected systems.

Technical Details of CVE-2019-10458

Jenkins Puppet Enterprise Pipeline 1.3.1 and earlier versions are susceptible to exploitation due to the following details:

Vulnerability Description

The custom Script Security whitelist in Jenkins Puppet Enterprise Pipeline 1.3.1 and previous versions contains unsafe values, enabling attackers to execute arbitrary code.

Affected Systems and Versions

Product: Jenkins Puppet Enterprise Pipeline
Vendor: Jenkins project
Versions Affected: 1.3.1 and earlier

Exploitation Mechanism

Attackers can leverage the vulnerability by executing protected scripts with Script Security, allowing them to run arbitrary code within the system.

Mitigation and Prevention

To address CVE-2019-10458, consider the following mitigation strategies:

Immediate Steps to Take

Update Jenkins Puppet Enterprise Pipeline to a secure version that addresses the vulnerability.
Implement strict access controls to limit the execution of protected scripts.

Long-Term Security Practices

Regularly review and update the custom Script Security whitelist to remove unsafe values.
Conduct security training for users to recognize and report suspicious activities.

Patching and Updates

Stay informed about security advisories from Jenkins project and promptly apply patches to secure the system.