CVE-2019-19576 Explained : Impact and Mitigation

This CVE-2019-19576 article provides insights into a vulnerability in the verot.net class.upload.php file versions before 1.0.3 and 2.x before 2.0.4, affecting the K2 extension for Joomla! and related products.

Understanding CVE-2019-19576

This section delves into the details of the CVE-2019-19576 vulnerability.

What is CVE-2019-19576?

The vulnerability lies in the class.upload.php file versions prior to 1.0.3 and 2.x before 2.0.4, used in the K2 extension for Joomla! and other related products. The issue arises from the omission of .phar from the list of risky file extensions.

The Impact of CVE-2019-19576

The vulnerability allows attackers to potentially execute remote code on the affected systems, posing a significant security risk.

Technical Details of CVE-2019-19576

This section provides technical insights into the CVE-2019-19576 vulnerability.

Vulnerability Description

The vulnerability in class.upload.php versions before 1.0.3 and 2.x before 2.0.4 allows malicious actors to exploit the absence of .phar in the dangerous file extensions list.

Affected Systems and Versions

Products: Not applicable
Vendor: Not applicable
Versions:
Versions before 1.0.3
Versions 2.x before 2.0.4

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading malicious files with the .phar extension, potentially leading to remote code execution.

Mitigation and Prevention

Learn how to mitigate and prevent the CVE-2019-19576 vulnerability.

Immediate Steps to Take

Update the class.upload.php file to version 1.0.3 or 2.0.4 to patch the vulnerability.
Implement file upload restrictions to prevent the upload of risky file types.

Long-Term Security Practices

Regularly monitor and update software components to address security vulnerabilities.
Conduct security audits to identify and remediate potential risks.

Patching and Updates

Stay informed about security advisories and promptly apply patches to secure systems.