CVE-2023-28677 : Vulnerability Insights and Analysis

This article provides details on CVE-2023-28677, including its impact, technical description, affected systems, and mitigation strategies.

Understanding CVE-2023-28677

CVE-2023-28677 refers to a vulnerability found in the Jenkins Convert To Pipeline Plugin. The plugin version 1.0 and earlier are affected by this security issue, allowing attackers to inject Pipeline script code into unsandboxed Pipelines during the conversion process.

What is CVE-2023-28677?

The CVE-2023-28677 vulnerability exists in the Jenkins Convert To Pipeline Plugin. It arises from the plugin's usage of basic string concatenation to convert Freestyle projects' components into Pipeline step invocations. This flaw enables malicious actors with the ability to configure Freestyle projects to insert crafted configuration that injects Pipeline script code, compromising the security of the resulting Pipeline.

The Impact of CVE-2023-28677

The impact of CVE-2023-28677 is significant as it allows attackers to execute arbitrary Pipeline script code within the Jenkins environment. This can lead to unauthorized access, data breaches, and potential disruption of Jenkins operations.

Technical Details of CVE-2023-28677

The following technical aspects of CVE-2023-28677 provide insight into the vulnerability's description, affected systems, and the mechanism of exploitation.

Vulnerability Description

The vulnerability in Jenkins Convert To Pipeline Plugin versions 1.0 and earlier arises from the insecure handling of converting Freestyle project components to Pipeline step invocations. Attackers can leverage this flaw to inject malicious Pipeline script code during the conversion process, compromising the security of the Jenkins environment.

Affected Systems and Versions

The affected system is the Jenkins Convert To Pipeline Plugin with versions 1.0 and earlier. Users utilizing these versions are vulnerable to exploitation if attackers can configure Freestyle projects within the Jenkins environment.

Exploitation Mechanism

Attackers exploit CVE-2023-28677 by preparing a crafted configuration in Freestyle projects, which upon conversion by Jenkins Convert To Pipeline Plugin, injects unauthorized Pipeline script code into the resulting unsandboxed Pipeline. This manipulation enables malicious activities within the Jenkins environment.

Mitigation and Prevention

To safeguard systems against CVE-2023-28677, it is essential to implement immediate steps, adopt long-term security practices, and ensure timely patching and updates.

Immediate Steps to Take

Users should update the Jenkins Convert To Pipeline Plugin to a secure version that addresses the CVE-2023-28677 vulnerability. Additionally, monitoring and restricting access to Freestyle project configurations can help prevent unauthorized code injections.

Long-Term Security Practices

Implementing a comprehensive security policy, conducting regular security audits, and providing security awareness training to users can enhance the overall security posture of Jenkins environments and mitigate the risk of similar vulnerabilities.

Patching and Updates

Staying informed about security advisories from Jenkins and promptly applying patches and updates for the Jenkins Convert To Pipeline Plugin are crucial practices to protect systems from CVE-2023-28677 and other security threats.