CVE-2024-7320: Blood Bank Management System SQLi Flaw

CVE-2024-7320 Overview

A critical SQL Injection vulnerability has been discovered in itsourcecode Online Blood Bank Management System version 1.0. The vulnerability exists within the Admin Login component, specifically in the /admin/index.php file. Improper handling of the user parameter allows remote attackers to inject malicious SQL queries, potentially leading to unauthorized database access, data manipulation, or complete system compromise.

Critical Impact

This SQL Injection vulnerability allows unauthenticated remote attackers to bypass authentication controls, extract sensitive blood bank data, and potentially compromise the entire database backend through the admin login interface.

Affected Products

• Online Blood Bank Management System 1.0
• Adonesevangelista Online Blood Bank Management System (itsourcecode distribution)

Discovery Timeline

• 2024-07-31 - CVE-2024-7320 published to NVD
• 2024-08-12 - Last updated in NVD database

Technical Details for CVE-2024-7320

Vulnerability Analysis

This vulnerability is classified as SQL Injection (CWE-89), one of the most prevalent and dangerous web application security flaws. The Admin Login component in the Online Blood Bank Management System fails to properly sanitize user-supplied input before incorporating it into SQL queries. When a user submits login credentials through the /admin/index.php endpoint, the user parameter is directly concatenated into the authentication query without adequate input validation or parameterized query implementation.

The network-accessible nature of this vulnerability means that any attacker with HTTP access to the vulnerable application can exploit this flaw without requiring prior authentication. The impact extends across confidentiality, integrity, and availability domains, as successful exploitation could allow attackers to read sensitive patient and donor records, modify blood bank inventory data, or disrupt database operations entirely.

Root Cause

The root cause of this vulnerability lies in insecure coding practices within the authentication mechanism. The application directly incorporates user input from the user parameter into dynamically constructed SQL statements. This lack of proper input sanitization, combined with the absence of prepared statements or parameterized queries, creates a direct pathway for SQL injection attacks. The authentication logic appears to trust client-supplied data implicitly, violating fundamental secure development principles.

Attack Vector

The attack can be initiated remotely over the network through standard HTTP requests to the /admin/index.php endpoint. An attacker can craft malicious input containing SQL metacharacters and injection payloads within the user parameter field. By submitting specially crafted authentication requests, the attacker can manipulate the underlying SQL query logic to bypass authentication entirely, extract database contents using UNION-based or blind injection techniques, or execute administrative commands against the database server.

The exploitation technique involves submitting authentication requests with SQL injection payloads in the username field. For example, an attacker might use boolean-based blind injection, time-based blind injection, or UNION-based extraction techniques to compromise the system. Technical details and proof-of-concept information can be found in the GitHub Issue Discussion and VulDB entry #273231.

Detection Methods for CVE-2024-7320

Indicators of Compromise

• Unusual HTTP POST requests to /admin/index.php containing SQL metacharacters such as single quotes, semicolons, or comment sequences (--, #, /**/)
• Authentication log entries showing failed or anomalous login attempts with suspicious username patterns
• Database logs indicating malformed queries, error messages related to SQL syntax, or unexpected query patterns from the web application
• Evidence of data exfiltration or unauthorized database queries in database audit logs

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in HTTP request parameters, particularly targeting the user parameter
• Implement application-level logging to capture all authentication attempts with full request details for forensic analysis
• Configure database query logging and alerting for queries containing suspicious patterns or those originating from the web application context
• Monitor for anomalous database access patterns such as bulk data retrieval or schema enumeration queries

Monitoring Recommendations

• Enable real-time alerting on WAF events related to SQL injection detection for the /admin/index.php endpoint
• Implement intrusion detection system (IDS) signatures targeting SQL injection attack patterns in HTTP traffic
• Review web server access logs regularly for patterns indicating automated vulnerability scanning or exploitation attempts

How to Mitigate CVE-2024-7320

Immediate Actions Required

• Immediately restrict access to the /admin/index.php endpoint using network-level controls such as IP whitelisting or VPN requirements
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules if not already in place
• Consider taking the application offline if it handles sensitive patient or donor data until proper remediation can be applied
• Audit database access logs for evidence of prior exploitation and assess potential data exposure

Patch Information

No official vendor patch has been released for this vulnerability at the time of publication. The application is distributed through itsourcecode and users should monitor the VulDB entry and vendor channels for security updates. Given the critical nature of SQL injection vulnerabilities and the exposure of the exploit publicly, organizations using this software should implement workarounds immediately.

Workarounds

• Implement prepared statements and parameterized queries in the authentication code to properly separate SQL logic from user data
• Deploy input validation to sanitize and validate the user parameter, rejecting any input containing SQL metacharacters
• Apply the principle of least privilege to database accounts used by the web application, restricting permissions to only those required for normal operation
• Place the application behind a reverse proxy with WAF capabilities to filter malicious requests before they reach the vulnerable code

# Example: Restrict access to admin panel via .htaccess
# Place this file in the /admin/ directory
<Files "index.php">
    Order Deny,Allow
    Deny from all
    # Allow only trusted IP addresses
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Files>