CVE-2023-4777 : Vulnerability Insights and Analysis

This CVE-2023-4777 article provides insights into a security vulnerability identified in the Qualys Container Scanning Connector Plugin.

Understanding CVE-2023-4777

CVE-2023-4777 highlights an incorrect permission check in the Qualys Container Scanning Connector Plugin version 1.6.2.6 and previous iterations. This vulnerability enables attackers with specific permissions to compromise Jenkins credentials.

What is CVE-2023-4777?

The vulnerability allows individuals with global Item/Configure permissions, despite lacking permission for any particular job, to access and retrieve credentials stored in Jenkins. Attackers can then utilize these credentials to connect to a URL of their choice, potentially compromising sensitive data stored in Jenkins.

The Impact of CVE-2023-4777

The impact of CVE-2023-4777 is categorized as "CAPEC-212 Functionality Misuse," underscoring the potential misuse of system functionality by exploiting the incorrect permission settings within the Qualys Container Scanning Connector Plugin.

Technical Details of CVE-2023-4777

This section delves into the specifics of the vulnerability, covering its description, affected systems, versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises from an erroneous permission validation process within the Qualys Container Scanning Connector Plugin, allowing unauthorized access to Jenkins credentials.

Affected Systems and Versions

The Qualys Container Scanning Connector Plugin versions up to 1.6.2.6 are impacted by this vulnerability, with version 1.6.2.7 identified as the recommended minimum version to address the issue.

Exploitation Mechanism

Attackers leverage the incorrect permission check to enumerate and extract Jenkins credentials, subsequently using the compromised credentials to connect to designated URLs and potentially extract sensitive data.

Mitigation and Prevention

This section outlines the necessary steps to mitigate the vulnerability, ensuring enhanced security measures and safeguarding systems against potential exploits.

Immediate Steps to Take

Users are advised to upgrade the Qualys Container Scanning Connector Plugin to version 1.6.2.7 or higher to remediate the vulnerability and prevent unauthorized access to Jenkins credentials.

Long-Term Security Practices

Incorporating stringent permission controls, practicing the principle of least privilege, and regularly monitoring and updating system components are recommended as long-term security practices to enhance overall system security posture.

Patching and Updates

Regularly applying security patches and updates released by Qualys for the Container Scanning Connector Plugin is crucial to mitigate vulnerabilities, enhance system security, and protect against potential cyber threats.