CVE-2022-27203 : Security Advisory and Response

Jenkins Extended Choice Parameter Plugin version 346.vd87693c5a_86c and earlier is affected by a vulnerability that allows attackers with Item/Configure permission to read values from arbitrary JSON and Java properties files on the Jenkins controller.

Understanding CVE-2022-27203

This CVE identifies a security issue in the Jenkins Extended Choice Parameter Plugin that could be exploited by malicious actors to access sensitive information stored on the Jenkins server.

What is CVE-2022-27203?

CVE-2022-27203 is a security vulnerability in the Jenkins Extended Choice Parameter Plugin that enables users with specific permissions to extract data from various files on the Jenkins controller, potentially leading to unauthorized access and information disclosure.

The Impact of CVE-2022-27203

The impact of this vulnerability is significant as it could allow threat actors to retrieve confidential data, compromising the confidentiality and integrity of the Jenkins environment. Attackers with malicious intent could exploit this flaw to gather sensitive information without proper authorization.

Technical Details of CVE-2022-27203

This section delves into the specific technical aspects of the vulnerability, including its description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The flaw in Jenkins Extended Choice Parameter Plugin versions 346.vd87693c5a_86c and earlier enables users with Item/Configure permission to extract values from arbitrary JSON and Java properties files located on the Jenkins controller, potentially exposing sensitive information.

Affected Systems and Versions

The vulnerability affects Jenkins Extended Choice Parameter Plugin version 346.vd87693c5a_86c and earlier.

Exploitation Mechanism

Attackers with Item/Configure permission on Jenkins can exploit this vulnerability to access and retrieve data from various JSON and Java files stored on the Jenkins controller, circumventing access controls.

Mitigation and Prevention

Preventive measures and actions that organizations and users can take to mitigate the risks associated with CVE-2022-27203.

Immediate Steps to Take

Administrators are advised to update the Jenkins Extended Choice Parameter Plugin to a secure version that addresses the vulnerability. Additionally, restrict access permissions to minimize the impact of potential exploitation.

Long-Term Security Practices

Implement a robust security policy that includes regular security audits, access control reviews, and employee training to enhance overall cybersecurity posture.

Patching and Updates

Stay up to date with security patches and updates released by the Jenkins project to address known vulnerabilities, including CVE-2022-27203.