CVE-2019-10334 : Exploit Details and Defense Strategies

Jenkins ElectricFlow Plugin 1.1.5 and earlier versions have a vulnerability that disables SSL/TLS and hostname verification globally for the Jenkins master JVM when uploading files using MultipartUtility.java.

Understanding CVE-2019-10334

This CVE affects Jenkins ElectricFlow Plugin versions 1.1.5 and earlier.

What is CVE-2019-10334?

This CVE refers to a security issue in the Jenkins ElectricFlow Plugin that allows for the disabling of SSL/TLS and hostname verification for the Jenkins master JVM.

The Impact of CVE-2019-10334

The vulnerability in versions 1.1.5 and earlier can lead to potential security risks due to the lack of SSL/TLS and hostname verification, exposing the Jenkins master JVM to attacks.

Technical Details of CVE-2019-10334

The technical details of this CVE are as follows:

Vulnerability Description

When using MultipartUtility.java to upload files, versions 1.1.5 and earlier of the Jenkins ElectricFlow Plugin disabled SSL/TLS and hostname verification for the Jenkins master JVM globally.

Affected Systems and Versions

Product: Jenkins ElectricFlow Plugin
Vendor: Jenkins project
Versions affected: 1.1.5 and earlier

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to intercept communications between the Jenkins master JVM and other systems due to the lack of SSL/TLS and hostname verification.

Mitigation and Prevention

To address CVE-2019-10334, follow these mitigation steps:

Immediate Steps to Take

Upgrade to a fixed version of the Jenkins ElectricFlow Plugin that addresses the SSL/TLS and hostname verification issue.
Implement network-level security controls to prevent unauthorized access to the Jenkins master JVM.

Long-Term Security Practices

Regularly monitor and update plugins and dependencies in Jenkins to ensure the latest security patches are applied.
Conduct security assessments and penetration testing to identify and remediate vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories from Jenkins and promptly apply patches to mitigate known vulnerabilities.