CVE-2022-45447 : Vulnerability Insights and Analysis

A directory traversal vulnerability in the M4 PDF plugin for Prestashop sites has been identified, allowing attackers to download sensitive files from the server. Here's everything you need to know about CVE-2022-45447.

Understanding CVE-2022-45447

CVE-2022-45447 involves a vulnerability in the M4 PDF plugin for Prestashop sites that exposes a directory traversal flaw, enabling malicious actors to retrieve files from the server.

What is CVE-2022-45447?

The M4 PDF plugin for Prestashop, prior to version 3.2.3, is susceptible to a directory traversal weakness. The issue lies in the inadequate validation of the 'f' parameter in the /m4pdf/pdf.php resource, allowing unauthorized file access.

The Impact of CVE-2022-45447

Exploiting this vulnerability could result in unauthorized users downloading sensitive server files like /etc/passwd. The severity of the impact is classified as medium with a base score of 6.5.

Technical Details of CVE-2022-45447

The vulnerability is characterized by the following metrics:

CVSS Score: 6.5 (Medium)
Attack Vector: Network
Attack Complexity: Low
Confidentiality Impact: High
Integrity Impact: None
Privileges Required: Low
User Interaction: None

Vulnerability Description

The flaw in the M4 PDF plugin for Prestashop allows attackers to perform directory traversal and access sensitive files on the server, leading to potential data leaks.

Affected Systems and Versions

The vulnerability impacts Prestashop sites using M4 PDF plugin versions 3.2.3 and earlier.

Exploitation Mechanism

By manipulating the 'f' parameter in the /m4pdf/pdf.php resource, threat actors can traverse directories and download arbitrary files from the server.

Mitigation and Prevention

To safeguard your system from CVE-2022-45447, consider the following measures:

Immediate Steps to Take

Update the M4 PDF plugin to version 3.2.4 or above to eliminate the vulnerability.
Monitor server logs for any suspicious activities indicating potential exploitation.

Long-Term Security Practices

Conduct regular security audits and penetration testing to identify and address similar vulnerabilities.
Implement access controls and file permissions to restrict unauthorized access to critical files.

Patching and Updates

Stay informed about security advisories and updates from Prestashop and plugin developers to promptly apply patches that address known vulnerabilities.