CVE-2023-47109 : Exploit Details and Defense Strategies

This CVE involves a vulnerability in PrestaShop blockreassurance where a Back Office (BO) user can potentially remove any file from the server while adding and deleting a block, leading to a high impact on availability.

Understanding CVE-2023-47109

In this section, we will delve into the details of the CVE-2023-47109 vulnerability.

What is CVE-2023-47109?

PrestaShop blockreassurance is a module that adds an information block to provide reassurance to customers. The issue arises when a BO user can manipulate the http request while adding a block, potentially leading to the deletion of critical files.

The Impact of CVE-2023-47109

The vulnerability allows unauthorized users to delete essential files from the server, which can result in a complete unavailability of the website. This could severely impact the trustworthiness and functionality of the PrestaShop platform.

Technical Details of CVE-2023-47109

Let's explore the technical aspects of CVE-2023-47109 and how it affects systems and versions.

Vulnerability Description

The vulnerability stems from improper authorization, allowing a high-privileged user to remove files by manipulating the http request while adding and deleting a block in the blockreassurance module.

Affected Systems and Versions

PrestaShop blockreassurance versions up to 5.1.3 are vulnerable to this issue. The impact is significant, especially for e-commerce websites relying on PrestaShop for their online stores.

Exploitation Mechanism

By modifying the http request path while creating or deleting a block, a malicious user can exploit this vulnerability to delete critical files, potentially causing severe disruptions.

Mitigation and Prevention

Discover how to mitigate the risks associated with CVE-2023-47109 and prevent future occurrences.

Immediate Steps to Take

To address this vulnerability, users are strongly advised to update to version 5.1.4 of PrestaShop blockreassurance. Additionally, it is crucial to monitor file accesses and restrict privileges to prevent unauthorized file deletions.

Long-Term Security Practices

In the long term, it is essential to implement secure coding practices, conduct regular security audits, and educate users about the risks associated with improper authorization and file manipulation.

Patching and Updates

Regularly applying security updates and patches provided by PrestaShop is crucial to ensure that known vulnerabilities are addressed promptly and the platform remains secure.