CVE-2019-10439 : Exploit Details and Defense Strategies

This CVE involves a vulnerability in the Jenkins CRX Content Package Deployer Plugin that allows users with Overall/Read access to enumerate credential IDs, potentially exposing sensitive information.

Understanding CVE-2019-10439

This CVE highlights a missing permission check in the Jenkins CRX Content Package Deployer Plugin, version 1.8.1 and earlier, which could lead to unauthorized access to credential IDs.

What is CVE-2019-10439?

A vulnerability in the Jenkins CRX Content Package Deployer Plugin allows users with specific access to enumerate credential IDs stored in Jenkins.

The Impact of CVE-2019-10439

The vulnerability could result in unauthorized users accessing sensitive credential information stored in Jenkins, potentially leading to further security breaches.

Technical Details of CVE-2019-10439

This section provides detailed technical information about the CVE.

Vulnerability Description

The issue arises from a missing permission check in the 'doFillCredentialsIdItems' methods of the Jenkins CRX Content Package Deployer Plugin.

Affected Systems and Versions

Product: Jenkins CRX Content Package Deployer Plugin
Vendor: Jenkins project
Versions Affected: 1.8.1 and earlier

Exploitation Mechanism

Unauthorized users with Overall/Read access in Jenkins can exploit the vulnerability to enumerate credential IDs.

Mitigation and Prevention

Protect your systems from CVE-2019-10439 with these mitigation strategies.

Immediate Steps to Take

Upgrade the Jenkins CRX Content Package Deployer Plugin to a non-vulnerable version.
Limit access permissions to sensitive information in Jenkins.

Long-Term Security Practices

Regularly review and update access control policies in Jenkins.
Educate users on best practices for handling sensitive information.

Patching and Updates

Ensure timely installation of security patches and updates for Jenkins and its plugins.