CVE-2023-47308

Comprehensive Technical Analysis of CVE-2023-47308

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2023-47308 CVSS Score: 9.8

The vulnerability in the "Newsletter Popup PRO with Voucher/Coupon code" module for PrestaShop, identified as CVE-2023-47308, is classified as a SQL injection vulnerability. The CVSS score of 9.8 indicates a critical severity level, reflecting the potential for significant impact on the confidentiality, integrity, and availability of the affected system.

2. Potential Attack Vectors and Exploitation Methods

The vulnerability allows a guest (unauthenticated user) to perform SQL injection attacks through the NewsletterpopsendVerificationModuleFrontController::checkEmailSubscription() method. This method contains sensitive SQL calls that can be manipulated via a trivial HTTP request.

Exploitation Methods:

• SQL Injection: An attacker can craft a malicious HTTP request to inject SQL code into the database queries executed by the checkEmailSubscription() method. This can lead to unauthorized access to the database, data manipulation, or extraction of sensitive information.
• Automated Scripts: Attackers can use automated scripts to exploit this vulnerability en masse, targeting multiple PrestaShop installations that use the affected module.

3. Affected Systems and Software Versions

Affected Module: Newsletter Popup PRO with Voucher/Coupon code (newsletterpop) Affected Versions: All versions before 2.6.1 Platform: PrestaShop

Any PrestaShop installation using the "Newsletter Popup PRO with Voucher/Coupon code" module version prior to 2.6.1 is vulnerable to this SQL injection attack.

4. Recommended Mitigation Strategies

Immediate Actions:

• Update the Module: Upgrade to version 2.6.1 or later of the "Newsletter Popup PRO with Voucher/Coupon code" module to mitigate the vulnerability.
• Disable the Module: If an immediate update is not possible, consider disabling the module until it can be updated.

Long-Term Strategies:

• Regular Patching: Implement a regular patching and update schedule for all modules and plugins.
• Input Validation: Ensure that all user inputs are properly validated and sanitized to prevent SQL injection attacks.
• Web Application Firewall (WAF): Deploy a WAF to monitor and block malicious HTTP requests.
• Database Security: Implement strict access controls and monitoring for database activities.

5. Impact on Cybersecurity Landscape

The discovery of CVE-2023-47308 highlights the ongoing risk of SQL injection vulnerabilities in web applications. This type of vulnerability remains prevalent and can have severe consequences, including data breaches, financial loss, and reputational damage. The high CVSS score underscores the need for vigilant security practices and regular updates to mitigate such risks.

6. Technical Details for Security Professionals

Vulnerable Method:

• NewsletterpopsendVerificationModuleFrontController::checkEmailSubscription()

Exploitation Steps:

1. Identify the Target: Locate a PrestaShop installation using the vulnerable module version.
2. Craft the Payload: Create a malicious HTTP request that includes SQL injection payloads.
3. Execute the Attack: Send the crafted request to the target server, exploiting the checkEmailSubscription() method.

Example Payload:

email=test@example.com' OR '1'='1

Detection and Monitoring:

• Log Analysis: Monitor web server logs for unusual HTTP requests and SQL errors.
• Intrusion Detection Systems (IDS): Use IDS to detect and alert on suspicious activities related to SQL injection attempts.
• Code Review: Conduct thorough code reviews to identify and remediate similar vulnerabilities in other modules and applications.

Conclusion: CVE-2023-47308 is a critical SQL injection vulnerability affecting the "Newsletter Popup PRO with Voucher/Coupon code" module for PrestaShop. Immediate mitigation through updating the module is essential to prevent potential data breaches and other security incidents. Ongoing security practices, including regular updates and input validation, are crucial to maintaining a robust cybersecurity posture.