CVE-2024-7946: Blood Bank Management System SQLi Flaw

CVE-2024-7946 Overview

A critical SQL Injection vulnerability has been identified in itsourcecode Online Blood Bank Management System version 1.0. The vulnerability exists in the register.php file within the User Signup component, where the manipulation of the user argument allows attackers to inject malicious SQL queries. This flaw enables remote attackers to bypass authentication, extract sensitive data, or potentially compromise the underlying database server.

Critical Impact

Unauthenticated remote attackers can exploit this SQL injection vulnerability to access, modify, or delete sensitive blood bank data including donor information, blood inventory records, and potentially gain administrative access to the system.

Affected Products

• Adonesevangelista Online Blood Bank Management System 1.0
• itsourcecode Online Blood Bank Management System 1.0

Discovery Timeline

• 2024-08-20 - CVE-2024-7946 published to NVD
• 2024-08-21 - Last updated in NVD database

Technical Details for CVE-2024-7946

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) stems from improper neutralization of special elements used in SQL commands within the user registration functionality. The register.php file fails to adequately sanitize user-supplied input before incorporating it into database queries. When users submit registration data through the signup form, the user parameter is directly concatenated into SQL statements without proper validation, parameterization, or escaping.

The vulnerability is accessible over the network without requiring any authentication or user interaction, making it particularly dangerous for internet-facing deployments. An attacker can craft malicious input containing SQL syntax that alters the intended query logic, potentially allowing unauthorized data access, modification, or deletion of database contents.

Root Cause

The root cause of this vulnerability is the lack of input validation and the use of unsanitized user input directly within SQL queries. The application fails to implement prepared statements or parameterized queries, which are the standard defense against SQL injection attacks. Instead, user-supplied data from the registration form is directly interpolated into SQL command strings, allowing attackers to break out of the intended query context and execute arbitrary SQL commands.

Attack Vector

The attack can be launched remotely against the register.php endpoint. An attacker submits a crafted HTTP request to the User Signup functionality with malicious SQL payload in the user parameter. Since no authentication is required to access the registration page, any remote attacker can exploit this vulnerability to:

1. Extract sensitive information from the database including donor records and administrative credentials
2. Bypass authentication mechanisms by manipulating query logic
3. Modify or delete database records affecting blood bank operations
4. Potentially achieve command execution if database server configurations permit

The vulnerability has been publicly disclosed, and technical details are available through the GitHub CVE Issue Discussion, increasing the likelihood of exploitation in the wild.

Detection Methods for CVE-2024-7946

Indicators of Compromise

• Unusual SQL error messages appearing in application logs or HTTP responses from register.php
• Database logs showing malformed or suspicious queries originating from the registration functionality
• Unexpected database records or modifications to user tables without corresponding legitimate activity
• Web server access logs containing suspicious payloads with SQL syntax characters in POST parameters

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in requests to register.php
• Implement database activity monitoring to alert on anomalous query patterns or unauthorized data access
• Configure application logging to capture and alert on SQL errors or exceptions from the user registration module
• Use intrusion detection systems with signatures for common SQL injection attack patterns

Monitoring Recommendations

• Monitor web server access logs for requests to register.php containing SQL metacharacters such as single quotes, double dashes, or UNION keywords
• Enable database query logging and review for suspicious commands targeting user or blood bank data tables
• Implement real-time alerting for multiple failed registration attempts that may indicate exploitation attempts
• Track database connection patterns for unusual activity from the web application user account

How to Mitigate CVE-2024-7946

Immediate Actions Required

• Restrict network access to the Online Blood Bank Management System to trusted IP addresses only
• Disable or remove the register.php file if user registration functionality is not required
• Deploy a Web Application Firewall with SQL injection protection rules in front of the application
• Conduct an immediate security audit of the database for signs of unauthorized access or data exfiltration

Patch Information

No official vendor patch is currently available for this vulnerability. The application is developed by itsourcecode/adonesevangelista, and administrators should monitor the VulDB entry for updates regarding remediation. Organizations using this software should consider implementing the workarounds below or migrating to a more actively maintained blood bank management solution.

Workarounds

• Implement input validation and parameterized queries by modifying the register.php source code to use prepared statements
• Add a Web Application Firewall layer to filter malicious SQL injection payloads before they reach the application
• Restrict database user privileges to minimum required permissions to limit the impact of successful exploitation
• Place the application behind a VPN or access control mechanism to prevent unauthenticated external access
• Consider replacing the vulnerable application with a security-audited alternative until patches are available

# Example: Restrict access to register.php via Apache .htaccess
<Files "register.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Files>