CVE-2023-50774 : Exploit Details and Defense Strategies

A CSRF vulnerability in Jenkins HTMLResource Plugin allows attackers to delete arbitrary files on the Jenkins controller file system.

Understanding CVE-2023-50774

This article provides an overview of the CVE-2023-50774 vulnerability and its implications.

What is CVE-2023-50774?

CVE-2023-50774 is a cross-site request forgery (CSRF) vulnerability found in Jenkins HTMLResource Plugin version 1.02 and earlier. This vulnerability enables malicious actors to delete files on the Jenkins controller file system.

The Impact of CVE-2023-50774

The impact of this vulnerability is severe as it allows unauthorized deletion of critical files on the Jenkins controller, potentially disrupting the operation of Jenkins services and compromising sensitive data.

Technical Details of CVE-2023-50774

This section delves into the specifics of the CVE-2023-50774 vulnerability.

Vulnerability Description

The CSRF vulnerability in Jenkins HTMLResource Plugin version 1.02 and earlier permits attackers to manipulate requests, leading to the deletion of files on the Jenkins controller file system.

Affected Systems and Versions

Jenkins HTMLResource Plugin versions 1.02 and earlier are affected by this vulnerability, leaving systems running these versions exposed to potential attacks.

Exploitation Mechanism

Malicious actors can exploit this vulnerability by tricking authenticated users into visiting a malicious website or clicking on a crafted link that performs unauthorized file deletions on the Jenkins controller.

Mitigation and Prevention

To safeguard systems from CVE-2023-50774, it is crucial to implement appropriate mitigation strategies.

Immediate Steps to Take

Upgrade Jenkins HTMLResource Plugin to a non-vulnerable version immediately.
Monitor network traffic and system logs for any suspicious activities.

Long-Term Security Practices

Conduct regular security assessments and audits to identify vulnerabilities proactively.
Educate users on safe browsing practices and the risks associated with clicking on unverified links.

Patching and Updates

Stay informed about security advisories from Jenkins Project and promptly apply patches and updates to ensure that systems are protected from known vulnerabilities.