CVE-2025-56212
📋 TL;DR
CVE-2025-56212 is a critical SQL injection vulnerability in phpgurukul Hospital Management System 4.0 that allows attackers to execute arbitrary SQL commands via the docname parameter in add-doctor.php. This affects all organizations using the vulnerable version of this hospital management software, potentially exposing sensitive patient data and system controls.
💻 Affected Systems
- phpgurukul Hospital Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to patient data exfiltration, system takeover, ransomware deployment, and destruction of medical records.
Likely Case
Unauthorized access to patient records, modification of medical data, extraction of sensitive information including personal health information (PHI).
If Mitigated
Limited data exposure if proper input validation and WAF rules are in place, though the vulnerability remains present.
🎯 Exploit Status
SQL injection via docname parameter requires authentication to access add-doctor.php, but once authenticated, exploitation is trivial.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Check vendor website for security updates
2. If patch available, download and apply following vendor instructions
3. Test functionality after patching
4. Monitor for any issues
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement proper input validation and parameterized queries for the docname parameter
Modify add-doctor.php to use prepared statements:
$stmt = $conn->prepare('INSERT INTO doctors (docname) VALUES (?)');
$stmt->bind_param('s', $_POST['docname']);
$stmt->execute();
Web Application Firewall Rules
allDeploy WAF rules to block SQL injection patterns targeting the docname parameter
Add WAF rule:
SecRule ARGS:docname "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQL Injection Attempt'"
ModSecurity rule:
SecRule ARGS:docname "@rx (?i)(union|select|insert|update|delete|drop|--|#|\/\*|\*\/)" "id:1002,phase:2,deny"
🧯 If You Can't Patch
- Restrict access to add-doctor.php endpoint using IP whitelisting or authentication requirements
- Implement database monitoring and alerting for unusual SQL queries or data access patterns
🔍 How to Verify
Check if Vulnerable:
Test the add-doctor.php endpoint with SQL injection payloads in the docname parameter (e.g., docname=test' OR '1'='1)Check Version:
Check system documentation or admin panel for version information, or examine PHP files for version headersVerify Fix Applied:
Attempt SQL injection tests after implementing fixes and verify they are blocked or properly handled📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts followed by add-doctor.php access
- SQL error messages containing user input in web server logs
Network Indicators:
- HTTP POST requests to add-doctor.php with SQL keywords in parameters
- Unusual database connection patterns from web server
SIEM Query:
source="web_server" AND uri="/add-doctor.php" AND (param="docname" AND value MATCHES "(?i)(union|select|insert|update|delete|drop|--|#)")