CVE-2023-49652 : Vulnerability Insights and Analysis

Jenkins Google Compute Engine Plugin prior to version 4.550.vb_327fca_3db_11 has incorrect permission checks that allow attackers to access system-scoped credentials and connect to Google Cloud Platform using attacker-specified credentials, potentially exposing project information.

Understanding CVE-2023-49652

This CVE identifies a security vulnerability in the Jenkins Google Compute Engine Plugin that could be exploited by attackers with specific permissions to access sensitive information and interact with Google Cloud Platform.

What is CVE-2023-49652?

The vulnerability in Jenkins Google Compute Engine Plugin versions prior to 4.550.vb_327fca_3db_11 enables malicious actors to enumerate system-scoped credentials IDs, potentially leading to unauthorized access to various projects and information.

The Impact of CVE-2023-49652

The impact of this vulnerability is significant as it allows attackers to bypass certain permissions and gain access to system credentials, potentially compromising the security and confidentiality of projects and information within Jenkins and Google Cloud Platform.

Technical Details of CVE-2023-49652

This section delves into the technical aspects of the CVE, including the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The incorrect permission checks in Jenkins Google Compute Engine Plugin versions prior to 4.550.vb_327fca_3db_11 allow attackers with specific permissions to enumerate system-scoped credentials IDs and connect to Google Cloud Platform using obtained credentials IDs, potentially exposing project information.

Affected Systems and Versions

The affected system is the Jenkins Google Compute Engine Plugin, specifically versions prior to 4.550.vb_327fca_3db_11. Users of these versions are at risk of unauthorized access to system credentials and project information.

Exploitation Mechanism

Attackers with global Item/Configure permission but lacking Item/Configure permission on particular jobs can exploit this vulnerability to access sensitive information and connect to Google Cloud Platform using unauthorized credentials.

Mitigation and Prevention

This section outlines the steps to mitigate the vulnerability and prevent potential exploitation.

Immediate Steps to Take

Users are advised to update their Jenkins Google Compute Engine Plugin to version 4.550.vb_327fca_3db_11 or later to address this vulnerability. Additionally, review and adjust permission settings to restrict unauthorized access.

Long-Term Security Practices

Implement a least privilege approach to permissions within Jenkins to limit access to sensitive functions and data. Regularly review and update permissions to ensure ongoing security.

Patching and Updates

Stay informed about security updates and patches released by Jenkins to address known vulnerabilities. Regularly update Jenkins and associated plugins to the latest versions to mitigate security risks.