CVE-2020-2258 : Security Advisory and Response

Jenkins Health Advisor by CloudBees Plugin 3.2.0 and earlier versions have a vulnerability that allows attackers with Overall/Read permission to view an HTTP endpoint.

Understanding CVE-2020-2258

This CVE affects Jenkins Health Advisor by CloudBees Plugin versions up to 3.2.0.

What is CVE-2020-2258?

This CVE involves a lack of correct permission checks in an HTTP endpoint, enabling unauthorized users to access sensitive information.

The Impact of CVE-2020-2258

The vulnerability allows attackers with specific permissions to view restricted HTTP endpoints, potentially leading to unauthorized access to sensitive data.

Technical Details of CVE-2020-2258

Jenkins Health Advisor by CloudBees Plugin is affected by this security issue.

Vulnerability Description

The plugin versions up to 3.2.0 do not perform permission checks correctly, exposing an HTTP endpoint to unauthorized users.

Affected Systems and Versions

Product: Jenkins Health Advisor by CloudBees Plugin
Vendor: Jenkins project
Vulnerable Versions: <= 3.2.0
Unaffected Versions: 3.1.1, 3.0.2

Exploitation Mechanism

Attackers with Overall/Read permission can exploit this vulnerability to access the HTTP endpoint.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent exploitation of this vulnerability.

Immediate Steps to Take

Upgrade Jenkins Health Advisor by CloudBees Plugin to version 3.2.1 or later.
Restrict Overall/Read permissions to trusted users only.

Long-Term Security Practices

Regularly review and update plugin permissions.
Monitor and audit access to sensitive endpoints.

Patching and Updates

Apply security patches promptly.
Stay informed about security advisories and updates from Jenkins project.