CVE-2024-0360: PHPGurukul Hospital Management SQLi Flaw

CVE-2024-0360 Overview

A critical SQL Injection vulnerability has been identified in PHPGurukul Hospital Management System version 1.0. The vulnerability exists in the admin/edit-doctor-specialization.php file, where improper handling of the doctorspecilization parameter allows attackers to inject malicious SQL queries. This vulnerability enables unauthorized access to the backend database, potentially compromising sensitive patient data, medical records, and administrative credentials.

Critical Impact

This SQL Injection vulnerability allows unauthenticated remote attackers to manipulate database queries, potentially leading to unauthorized data access, data modification, or complete database compromise in healthcare management systems.

Affected Products

• PHPGurukul Hospital Management System 1.0

Discovery Timeline

• 2024-01-10 - CVE-2024-0360 published to NVD
• 2024-11-21 - Last updated in NVD database

Technical Details for CVE-2024-0360

Vulnerability Analysis

This SQL Injection vulnerability occurs in the doctor specialization editing functionality of the Hospital Management System administrative interface. The application fails to properly sanitize user-supplied input in the doctorspecilization parameter before incorporating it into SQL queries. This classic injection flaw allows attackers to craft malicious input that modifies the intended SQL query structure, enabling them to extract sensitive information from the database, bypass authentication mechanisms, or modify/delete critical healthcare data.

The vulnerability is particularly concerning in a hospital management context due to the sensitive nature of healthcare data, including patient records, treatment histories, and billing information that may be exposed through successful exploitation.

Root Cause

The root cause of this vulnerability is insufficient input validation and the lack of parameterized queries in the edit-doctor-specialization.php file. The application directly concatenates user-supplied input from the doctorspecilization parameter into SQL statements without proper sanitization or the use of prepared statements. This allows attackers to break out of the intended query context and execute arbitrary SQL commands against the underlying database.

Attack Vector

The attack vector is network-based and does not require authentication, allowing remote attackers to exploit this vulnerability directly through HTTP requests to the vulnerable endpoint. An attacker can craft malicious requests containing SQL syntax in the doctorspecilization parameter, which will be interpreted and executed by the database server.

The exploitation mechanism involves submitting specially crafted input to the admin/edit-doctor-specialization.php endpoint. By injecting SQL metacharacters and commands into the doctorspecilization parameter, an attacker can manipulate the backend query to perform unauthorized operations such as extracting database contents using UNION-based injection, performing blind SQL injection to enumerate data, or executing stacked queries if supported by the database configuration.

Detection Methods for CVE-2024-0360

Indicators of Compromise

• Unusual or malformed HTTP requests targeting admin/edit-doctor-specialization.php containing SQL keywords such as UNION, SELECT, INSERT, DELETE, DROP, or comment sequences like -- and /*
• Database error messages appearing in application logs or responses indicating syntax errors from injected SQL
• Unexpected database queries in database audit logs, particularly those accessing multiple tables or containing encoded/obfuscated content
• Anomalous administrative account activity or creation of unauthorized user accounts

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in HTTP parameters, specifically monitoring the doctorspecilization parameter
• Implement database activity monitoring to detect unusual query patterns, excessive data extraction, or queries accessing sensitive tables outside normal application behavior
• Enable detailed logging on the web server and database to capture request parameters and query execution for forensic analysis
• Utilize SentinelOne's application control and behavioral detection capabilities to identify exploitation attempts

Monitoring Recommendations

• Monitor web server access logs for requests to admin/edit-doctor-specialization.php with suspicious parameter values
• Configure database audit logging to track all queries executed against patient and administrative tables
• Set up alerts for database errors that may indicate failed injection attempts
• Review authentication logs for unauthorized access patterns following potential exploitation

How to Mitigate CVE-2024-0360

Immediate Actions Required

• Restrict access to the administrative interface (/admin/ directory) to trusted IP addresses only using firewall rules or .htaccess restrictions
• Implement a Web Application Firewall with SQL injection protection rules enabled for the affected endpoint
• Consider taking the vulnerable application offline until a patch can be applied if it handles sensitive patient data
• Conduct a database audit to identify any potential compromise or unauthorized data access

Patch Information

As of the last update, no official vendor patch has been released for this vulnerability. System administrators should monitor the VulDB entry and GitHub documentation for updates. In the absence of an official patch, implementing the workarounds below is strongly recommended.

Workarounds

• Implement server-side input validation to sanitize the doctorspecilization parameter, rejecting any input containing SQL metacharacters
• Modify the vulnerable PHP code to use prepared statements with parameterized queries instead of string concatenation
• Deploy network-level access controls to restrict administrative interface access to authorized personnel only
• Consider using a reverse proxy with SQL injection filtering capabilities as an additional layer of defense

# Apache .htaccess example to restrict admin access by IP
<Directory "/var/www/html/admin">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Directory>