CVE-2023-41527
📋 TL;DR
This SQL injection vulnerability in Hospital Management System v4 allows attackers to execute arbitrary SQL commands through the password2 parameter. Attackers can potentially access, modify, or delete sensitive hospital data including patient records. All deployments of Hospital Management System v4 are affected.
💻 Affected Systems
- Hospital Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to theft of all patient medical records, financial data, and administrative credentials, potentially enabling ransomware deployment across the entire system.
Likely Case
Unauthorized access to patient records and administrative data, credential theft, and potential data manipulation affecting patient care.
If Mitigated
Limited data exposure if proper input validation and database permissions are implemented, though system integrity remains at risk.
🎯 Exploit Status
The vulnerability is in a publicly accessible parameter and requires minimal technical skill to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Implement parameterized queries and input validation in func.php.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd input validation and parameterized queries to the password2 parameter handling in func.php
Modify func.php to use prepared statements: $stmt = $conn->prepare('SELECT * FROM users WHERE password2 = ?'); $stmt->bind_param('s', $password2);
Web Application Firewall (WAF)
allDeploy a WAF with SQL injection protection rules
🧯 If You Can't Patch
- Isolate the Hospital Management System from internet access and restrict internal network access
- Implement strict database permissions and monitor for unusual SQL queries
🔍 How to Verify
Check if Vulnerable:
Test the password2 parameter with SQL injection payloads like ' OR '1'='1 in the login or password reset functionalityCheck Version:
Check the system version in the admin panel or configuration filesVerify Fix Applied:
Attempt SQL injection attacks against the password2 parameter and verify they are blocked or sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts with SQL-like patterns in password2 parameter
Network Indicators:
- HTTP requests containing SQL keywords in password2 parameter
- Unusual database connection patterns
SIEM Query:
source="web_logs" AND (password2 CONTAINS "' OR" OR password2 CONTAINS "UNION" OR password2 CONTAINS "SELECT *")