CVE-2021-36548 : Security Advisory and Response

A remote code execution (RCE) vulnerability in Monstra v3.0.4 allows attackers to execute arbitrary commands via a crafted PHP file.

Understanding CVE-2021-36548

This CVE identifies a security flaw in Monstra v3.0.4 that enables remote code execution.

What is CVE-2021-36548?

CVE-2021-36548 is a critical vulnerability in Monstra v3.0.4 that can be exploited by attackers to run arbitrary commands through a specially crafted PHP file.

The Impact of CVE-2021-36548

This vulnerability poses a severe risk as it allows unauthorized execution of commands on the affected system, potentially leading to a complete system compromise.

Technical Details of CVE-2021-36548

Below are the technical details of the CVE:

Vulnerability Description

The vulnerability exists in the /admin/index.php?id=themes&action=edit_template&filename=blog component of Monstra v3.0.4, enabling attackers to achieve remote code execution.

Affected Systems and Versions

Monstra v3.0.4 is specifically impacted by this vulnerability, exposing systems with this version to the risk of remote code execution.

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating a PHP file to execute malicious commands on the targeted system.

Mitigation and Prevention

To safeguard against CVE-2021-36548, consider the following measures:

Immediate Steps to Take

Update Monstra to a patched version that addresses the RCE vulnerability.
Implement strict input validation mechanisms to prevent malicious file uploads.

Long-Term Security Practices

Regularly audit and monitor your web application for suspicious activities.
Educate developers and users about secure coding practices to mitigate similar vulnerabilities.

Patching and Updates

Always stay informed about security updates released by Monstra and promptly apply patches to eliminate known vulnerabilities.