CVE-2020-2255 : What You Need to Know

A missing permission check in Jenkins Blue Ocean Plugin 1.23.2 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL.

Understanding CVE-2020-2255

This CVE involves a vulnerability in the Jenkins Blue Ocean Plugin that could be exploited by attackers with specific permissions.

What is CVE-2020-2255?

CVE-2020-2255 is a security vulnerability in the Jenkins Blue Ocean Plugin that allows attackers with certain permissions to connect to a specified URL.

The Impact of CVE-2020-2255

The vulnerability could be exploited by attackers with Overall/Read permission, potentially leading to unauthorized access to sensitive information or system compromise.

Technical Details of CVE-2020-2255

This section provides more technical insights into the CVE.

Vulnerability Description

A missing permission check in Jenkins Blue Ocean Plugin 1.23.2 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL.

Affected Systems and Versions

Product: Jenkins Blue Ocean Plugin
Vendor: Jenkins project
Vulnerable Versions:
Custom version <= 1.23.2
Version 1.19.2 is unaffected

Exploitation Mechanism

Attackers with Overall/Read permission can exploit the vulnerability to connect to a specified URL.

Mitigation and Prevention

Steps to address and prevent the CVE.

Immediate Steps to Take

Upgrade Jenkins Blue Ocean Plugin to a non-vulnerable version.
Restrict permissions to minimize the impact of potential attacks.

Long-Term Security Practices

Regularly update Jenkins and its plugins to the latest versions.
Implement the principle of least privilege to limit user permissions.

Patching and Updates

Apply security patches provided by Jenkins project promptly to address known vulnerabilities.