CVE-2024-13147 Overview
CVE-2024-13147 is a critical SQL Injection vulnerability affecting the Merkur Software B2B Login Panel. The vulnerability stems from improper neutralization of special elements used in SQL commands, allowing unauthenticated attackers to manipulate database queries through the login interface. This flaw enables attackers to bypass authentication, extract sensitive data, modify database contents, or potentially execute arbitrary commands on the underlying database server.
Critical Impact
Unauthenticated attackers can exploit this SQL Injection vulnerability to gain unauthorized access to the B2B Login Panel, extract confidential business data, modify records, or compromise the underlying database infrastructure.
Affected Products
- Merkur Software B2B Login Panel (versions before 15.01.2025)
Discovery Timeline
- 2025-03-05 - CVE CVE-2024-13147 published to NVD
- 2025-03-05 - Last updated in NVD database
Technical Details for CVE-2024-13147
Vulnerability Analysis
This SQL Injection vulnerability (CWE-89) exists in the Merkur Software B2B Login Panel authentication mechanism. The application fails to properly sanitize user-supplied input before incorporating it into SQL queries, allowing attackers to inject malicious SQL statements. When exploited, this vulnerability enables complete bypass of authentication controls and direct interaction with the backend database.
The network-accessible nature of the login panel significantly increases the attack surface, as any remote attacker can attempt exploitation without requiring prior authentication or user interaction. B2B login panels typically contain sensitive business-critical information including customer data, transaction records, pricing information, and partner credentials, making this an attractive target for malicious actors.
Root Cause
The vulnerability originates from inadequate input validation and sanitization in the B2B Login Panel's authentication logic. User-controllable input fields, likely username and password parameters, are concatenated directly into SQL queries without proper parameterization or escaping. This allows attackers to break out of the intended query structure and inject arbitrary SQL commands that the database will execute with the same privileges as the application.
Attack Vector
The attack can be executed remotely over the network against any exposed B2B Login Panel instance. An attacker targets the login form by submitting specially crafted input containing SQL metacharacters and malicious query fragments. Depending on the database backend and application architecture, successful exploitation may allow:
- Authentication bypass to gain unauthorized administrative access
- Data exfiltration of sensitive business information stored in the database
- Data manipulation including insertion, modification, or deletion of records
- Potential command execution on the database server through database-specific functions
- Lateral movement to other systems if database credentials are reused
The exploitation does not require any prior authentication, making Internet-facing instances particularly vulnerable.
Detection Methods for CVE-2024-13147
Indicators of Compromise
- Unusual login attempts containing SQL syntax characters such as single quotes, double quotes, semicolons, or comment sequences (--, /**/)
- Web application logs showing error messages revealing SQL syntax errors or database schema information
- Anomalous database queries in database audit logs, particularly those with UNION SELECT, OR 1=1, or time-based injection patterns
- Unexpected data access patterns or bulk data extraction from the database
Detection Strategies
- Deploy a Web Application Firewall (WAF) with SQL Injection detection rules to identify and block malicious payloads
- Enable detailed application and database logging to capture authentication attempts and SQL query execution
- Configure intrusion detection systems to alert on SQL Injection attack signatures in HTTP request parameters
- Monitor for authentication anomalies such as successful logins from unexpected locations or multiple failed attempts followed by success
Monitoring Recommendations
- Review web server access logs for suspicious parameter values in POST requests to the login endpoint
- Enable database query auditing to track all executed statements and identify potentially malicious queries
- Implement real-time alerting for SQL errors that may indicate exploitation attempts
- Monitor for unusual outbound data transfers that could indicate successful data exfiltration
How to Mitigate CVE-2024-13147
Immediate Actions Required
- Update Merkur Software B2B Login Panel to the version released on or after 15.01.2025 that addresses this vulnerability
- If immediate patching is not possible, restrict network access to the B2B Login Panel to trusted IP addresses only
- Deploy a Web Application Firewall with SQL Injection protection enabled in front of the application
- Review database audit logs for any signs of past exploitation or unauthorized access
Patch Information
Merkur Software has addressed this vulnerability in B2B Login Panel versions released on or after 15.01.2025. Organizations should update to the latest available version immediately. For additional details, refer to the USOM Security Notification.
Workarounds
- Implement network-level access controls to restrict B2B Login Panel access to authorized IP ranges only
- Deploy a Web Application Firewall (WAF) configured with SQL Injection detection and prevention rules
- Add application-layer input validation as a compensating control until patching is complete
- Consider temporarily disabling the B2B Login Panel if it is not business-critical until the patch can be applied
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
