CVE-2021-21658 : Security Advisory and Response

Jenkins Nuget Plugin version 1.0 and earlier is vulnerable to XML external entity (XXE) attacks due to improper configuration of its XML parser.

Understanding CVE-2021-21658

This CVE ID corresponds to a security vulnerability in the Jenkins Nuget Plugin.

What is CVE-2021-21658?

The vulnerability in Jenkins Nuget Plugin version 1.0 and earlier allows for XML external entity (XXE) attacks.

The Impact of CVE-2021-21658

An attacker could exploit this vulnerability to access sensitive data, execute arbitrary code, or perform other malicious actions on the target system.

Technical Details of CVE-2021-21658

This section provides deeper insights into the technical aspects of the vulnerability.

Vulnerability Description

Jenkins Nuget Plugin 1.0 and earlier lack proper configuration to defend against XXE attacks, posing a security risk.

Affected Systems and Versions

The Jenkins Nuget Plugin versions up to and including 1.0 are impacted by this vulnerability.

Exploitation Mechanism

By crafting malicious XML payloads, attackers can leverage the XXE vulnerability to gain unauthorized access or execute arbitrary commands.

Mitigation and Prevention

It is crucial to take immediate action to secure systems against CVE-2021-21658.

Immediate Steps to Take

Users should update the affected Jenkins Nuget Plugin to a patched version and follow security best practices.

Long-Term Security Practices

Regularly monitor security advisories and updates from Jenkins project to stay informed about potential vulnerabilities.

Patching and Updates

Install security patches and updates provided by Jenkins project to safeguard against known vulnerabilities.