CVE-2023-27640 : What You Need to Know

A vulnerability, CVE-2023-27640, has been identified in the tshirtecommerce component for PrestaShop. This CVE allows a remote attacker to traverse directories on the system, opening files without any restrictions on the extension and path. The issue was discovered in March 2023.

Understanding CVE-2023-27640

This section provides insights into what CVE-2023-27640 entails.

What is CVE-2023-27640?

CVE-2023-27640 is a security vulnerability found in the tshirtecommerce component 2.1.4 for PrestaShop. It enables a malicious actor to manipulate HTTP requests with the POST parameter type in the /tshirtecommerce/fonts.php endpoint. This manipulation allows the attacker to navigate through directories on the system, accessing and opening files without limitations on file extensions or paths. The content of the accessed file is then returned with base64 encoding.

The Impact of CVE-2023-27640

The exploitation of CVE-2023-27640 poses a significant threat as it allows unauthorized access to sensitive files on the system. This could lead to data leakage, unauthorized modification of files, or further compromise of the affected system.

Technical Details of CVE-2023-27640

Explore the technical aspects associated with CVE-2023-27640.

Vulnerability Description

The vulnerability in the tshirtecommerce component for PrestaShop enables remote attackers to traverse directories and open files with unrestricted access to file paths and extensions.

Affected Systems and Versions

The affected component is tshirtecommerce 2.1.4 for PrestaShop. The exact vendor, product, and versions are not specified, as the vulnerability description indicates 'n/a' for these details.

Exploitation Mechanism

The exploitation of CVE-2023-27640 involves forging an HTTP request with a specific POST parameter type in the /tshirtecommerce/fonts.php endpoint. By manipulating this parameter, attackers can perform directory traversal attacks to access and retrieve files with base64 encoding.

Mitigation and Prevention

Learn how to mitigate and prevent the exploitation of CVE-2023-27640.

Immediate Steps to Take

Implement access controls to restrict unauthorized access to files and directories.
Regularly monitor and audit HTTP requests and responses for any anomalies or malicious activity.
Consider applying security patches or updates provided by the component vendor or community.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address potential vulnerabilities.
Educate developers and system administrators on secure coding practices and secure configuration management.
Stay informed about the latest security advisories and best practices in web application security.

Patching and Updates

Stay vigilant for any patches or updates released by the PrestaShop community or component vendor to address CVE-2023-27640. Applying these patches promptly is crucial in mitigating the risk of exploitation and enhancing the security posture of the affected systems.