CVE-2017-2652 : Vulnerability Insights and Analysis

CVE-2017-2652 was published on March 20, 2017, and affects the DistFork Jenkins plugin up to version 1.5.0. The vulnerability allows users with specific permissions to execute unrestricted shell commands across all connected nodes.

Understanding CVE-2017-2652

This CVE highlights a lack of proper permission checks in the Distributed Fork plugin for Jenkins, potentially leading to unauthorized execution of shell commands.

What is CVE-2017-2652?

The vulnerability in the DistFork Jenkins plugin allows users with Overall/Read permission to run arbitrary shell commands on all connected nodes, posing a significant security risk.

The Impact of CVE-2017-2652

The vulnerability enables unauthorized users to execute unrestricted shell commands across all connected nodes, potentially leading to system compromise and data breaches.

Technical Details of CVE-2017-2652

The technical aspects of the CVE provide insight into the vulnerability's description, affected systems, and exploitation mechanism.

Vulnerability Description

The Distributed Fork plugin in Jenkins up to version 1.5.0 lacks proper permission checks, specifically in the dist-fork CLI command, allowing users with Overall/Read permission to execute unrestricted shell commands.

Affected Systems and Versions

Product: DistFork Jenkins plugin
Vendor: Jenkins project
Versions Affected: <=1.5.0

Exploitation Mechanism

The vulnerability arises from the plugin's failure to enforce adequate permission checks, specifically relying on the Overall/Read permission, which can be exploited by users with that permission to execute arbitrary shell commands.

Mitigation and Prevention

Protecting systems from CVE-2017-2652 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the DistFork Jenkins plugin to a patched version that addresses the permission check issue.
Restrict Overall/Read permissions to trusted users only.

Long-Term Security Practices

Regularly review and update plugin permissions to ensure least privilege access.
Conduct security training for users to raise awareness of potential risks and best practices.

Patching and Updates

Jenkins project provides security advisories and patches to address vulnerabilities like CVE-2017-2652. Stay informed and apply updates promptly to mitigate risks.