CVE-2023-27902 : Vulnerability Insights and Analysis

This article provides insights into CVE-2023-27902, a vulnerability identified in the Jenkins software.

Understanding CVE-2023-27902

CVE-2023-27902 is a security vulnerability found in Jenkins, specifically affecting versions 2.393 and earlier, as well as LTS 2.375.3 and earlier. The vulnerability exposes temporary directories related to job workspaces, enabling attackers with Item/Workspace permission to access their contents.

What is CVE-2023-27902?

CVE-2023-27902 is a vulnerability in Jenkins that allows unauthorized users to view sensitive information stored in temporary directories associated with job workspaces.

The Impact of CVE-2023-27902

The impact of CVE-2023-27902 can be severe as it provides unauthorized individuals with the ability to access confidential data within Jenkins, potentially leading to data breaches and security compromises.

Technical Details of CVE-2023-27902

This section delves into the technical aspects of CVE-2023-27902, outlining the vulnerability description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

The vulnerability in Jenkins 2.393 and earlier, LTS 2.375.3 and earlier, discloses temporary directories in job workspaces, allowing unauthorized users with specific permissions to view sensitive data.

Affected Systems and Versions

The impacted systems include Jenkins versions 2.393 and earlier, as well as LTS versions 2.375.3 and earlier. Users utilizing these versions are susceptible to the security flaw.

Exploitation Mechanism

Exploiting CVE-2023-27902 involves leveraging the exposed temporary directories related to job workspaces in Jenkins. Attackers with Item/Workspace permission can exploit this vulnerability to access confidential information.

Mitigation and Prevention

To address CVE-2023-27902 and enhance security measures, organizations and users are advised to implement immediate steps for remediation and adopt long-term security practices.

Immediate Steps to Take

Immediately updating Jenkins to the latest non-vulnerable version, restricting permissions to limit access, and monitoring for suspicious activities within Jenkins can mitigate the risk posed by CVE-2023-27902.

Long-Term Security Practices

Establishing strict access controls, conducting regular security assessments, and educating users on best security practices can enhance the overall security posture of Jenkins and prevent future vulnerabilities.

Patching and Updates

Staying vigilant for security advisories from Jenkins and promptly applying patches and updates released by the vendor is crucial in safeguarding Jenkins instances against known vulnerabilities like CVE-2023-27902.