CVE-2022-36883 : Security Advisory and Response

A missing permission check in Jenkins Git Plugin 4.11.3 and earlier allows unauthenticated attackers to trigger builds of jobs configured to use an attacker-specified Git repository and to cause them to check out an attacker-specified commit.

Understanding CVE-2022-36883

This CVE involves a vulnerability in the Jenkins Git Plugin that can be exploited by unauthenticated attackers to manipulate job builds.

What is CVE-2022-36883?

The CVE-2022-36883 highlights a missing permission check in Jenkins Git Plugin versions 4.11.3 and prior, enabling unauthorized individuals to initiate builds from specific Git repositories.

The Impact of CVE-2022-36883

The vulnerability allows attackers to trigger builds in Jenkins that are associated with particular Git repositories, ultimately leading to unauthorized checkout operations.

Technical Details of CVE-2022-36883

The technical aspects of this CVE shed light on the specific vulnerability, the affected systems, and the exploit techniques.

Vulnerability Description

The vulnerability lies in Jenkins Git Plugin versions 4.11.3 and earlier, allowing unauthenticated attackers to tamper with job builds related to designated Git repositories.

Affected Systems and Versions

Systems running Jenkins Git Plugin versions less than or equal to 4.11.3 are susceptible to this security flaw, while version 4.9.3 remains unaffected.

Exploitation Mechanism

Attackers can exploit this vulnerability by triggering unauthorized job builds from specified Git repositories, thereby compromising the integrity of the system.

Mitigation and Prevention

To address CVE-2022-36883 effectively, immediate actions and long-term security practices are recommended.

Immediate Steps to Take

Upgrade Jenkins Git Plugin to version 4.11.4 or higher to patch the vulnerability.
Monitor job builds for any unauthorized activities or checkout operations.

Long-Term Security Practices

Implement access controls and authentication mechanisms to prevent unauthorized access to Jenkins.
Regularly audit Jenkins configurations and job permissions.

Patching and Updates

Stay informed about security advisories from Jenkins project and promptly apply patches and updates to secure your Jenkins environment.