CVE-2023-39528 : Security Advisory and Response

A critical vulnerability has been identified in PrestaShop, an open-source e-commerce web application, allowing for file reading through path traversal. This article delves into the impact, technical details, and mitigation strategies related to CVE-2023-39528.

Understanding CVE-2023-39528

This section provides essential insights into the nature and implications of the CVE-2023-39528 vulnerability.

What is CVE-2023-39528?

PrestaShop, prior to version 8.1.1, is susceptible to a path traversal flaw that enables unauthorized file access using the

displayAjaxEmailHTML

method. Attackers could potentially read sensitive files on the server, even those located outside the project directory if the server lacks proper configuration. The issue has been rectified in version 8.1.1, with no known workarounds available.

The Impact of CVE-2023-39528

The exploitation of CVE-2023-39528 could lead to a significant compromise of data integrity on affected PrestaShop installations. With the potential to access arbitrary files on the server, attackers might extract sensitive information, posing severe risks to confidentiality.

Technical Details of CVE-2023-39528

In this section, we delve into the specific technical aspects of CVE-2023-39528 to enhance understanding and preparedness.

Vulnerability Description

The vulnerability in PrestaShop facilitates unauthorized file access through path traversal, courtesy of the

displayAjaxEmailHTML

method, pre-version 8.1.1. The lack of proper restrictions allows attackers to read files beyond the project's directory.

Affected Systems and Versions

PrestaShop versions prior to 8.1.1 are impacted by CVE-2023-39528. Organizations running susceptible versions are at risk of unauthorized file reading through path traversal.

Exploitation Mechanism

Exploiting CVE-2023-39528 involves utilizing the vulnerable

displayAjaxEmailHTML

method to traverse directory paths and read sensitive files on the PrestaShop server, compromising data integrity.

Mitigation and Prevention

This section outlines crucial steps and best practices to mitigate the risks associated with CVE-2023-39528.

Immediate Steps to Take

Update to Version 8.1.1: Organizations using PrestaShop should promptly update to version 8.1.1 to mitigate the file reading vulnerability.

Long-Term Security Practices

Regular Security Audits: Conduct routine security audits to identify and address vulnerabilities proactively.
Security Training: Provide comprehensive security training to developers and system administrators to enhance awareness and response capabilities.

Patching and Updates

Monitor Security Advisories: Stay informed about security advisories from PrestaShop and promptly implement patches and updates to secure the e-commerce platform.