EUVD-2023-31373

Comprehensive Technical Analysis of EUVD-2023-31373

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified in the tshirtecommerce (Custom Product Designer) component 2.1.4 for PrestaShop is a SQL injection vulnerability. This issue arises from an insecure parameter handling in the designer.php front controller file, specifically through the product_id GET parameter. The CVSS (Common Vulnerability Scoring System) base score of 9.8 indicates a critical severity level. The vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H breaks down as follows:

• AV:N (Attack Vector: Network): The vulnerability is exploitable over the network.
• AC:L (Attack Complexity: Low): The attack requires low complexity to exploit.
• PR:N (Privileges Required: None): No privileges are required to exploit the vulnerability.
• UI:N (User Interaction: None): No user interaction is required.
• S:U (Scope: Unchanged): The vulnerability does not change the security scope.
• C:H (Confidentiality: High): There is a high impact on confidentiality.
• I:H (Integrity: High): There is a high impact on integrity.
• A:H (Availability: High): There is a high impact on availability.

Given the high scores in confidentiality, integrity, and availability, this vulnerability poses a significant risk to systems running the affected software.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector is through an HTTP request with a compromised product_id GET parameter. An attacker can craft a malicious HTTP request to inject SQL code into the designer.php file. This can be done by manipulating the URL parameters to include SQL commands, which the application then executes.

Example Exploitation Method:

http://vulnerable-site.com/designer.php?product_id=1' OR '1'='1

This example demonstrates a simple SQL injection attempt where the product_id parameter is manipulated to always return true, potentially bypassing authentication or retrieving unauthorized data.

3. Affected Systems and Software Versions

The vulnerability specifically affects the tshirtecommerce (Custom Product Designer) component version 2.1.4 for PrestaShop. Any e-commerce site running this version of the component is at risk. It is crucial to identify and update all instances of this component to mitigate the risk.

4. Recommended Mitigation Strategies

1. Immediate Patching: Upgrade to the latest version of the tshirtecommerce component that addresses this vulnerability.
2. Input Validation: Implement strict input validation and sanitization for all user-supplied data, especially GET parameters.
3. Parameterized Queries: Use parameterized queries or prepared statements to prevent SQL injection.
4. Web Application Firewall (WAF): Deploy a WAF to detect and block malicious HTTP requests.
5. Regular Security Audits: Conduct regular security audits and code reviews to identify and fix similar vulnerabilities.
6. Monitoring and Logging: Enable comprehensive logging and monitoring to detect any suspicious activities.

5. Impact on European Cybersecurity Landscape

The exploitation of this vulnerability in the wild, as noted in March 2023, underscores the importance of timely patching and proactive security measures. Given the widespread use of PrestaShop in European e-commerce, this vulnerability could have significant implications for data breaches, financial loss, and reputational damage for affected businesses. The high CVSS score indicates that this vulnerability could be leveraged for large-scale attacks, making it a priority for cybersecurity professionals in the region.

6. Technical Details for Security Professionals

Vulnerability Details:

• Component: tshirtecommerce (Custom Product Designer)
• Version: 2.1.4
• File: designer.php
• Parameter: product_id
• Exploit Type: SQL Injection

Detection and Response:

• Detection: Use intrusion detection systems (IDS) and intrusion prevention systems (IPS) to monitor for unusual SQL query patterns.
• Response: Implement an incident response plan that includes isolating affected systems, applying patches, and notifying affected users if a breach is detected.

References:

• PrestaShop Custom Product Designer
• tshirtecommerce
• Security Advisory
• NVD Detail

By addressing this vulnerability promptly and comprehensively, organizations can significantly reduce the risk of SQL injection attacks and protect their e-commerce platforms from potential breaches.