CVE-2022-24226
📋 TL;DR
Hospital Management System v4.0 contains a blind SQL injection vulnerability in the register function (func2.php) that allows attackers to execute arbitrary SQL commands without seeing the results directly. This affects all users running the vulnerable version of the software. Attackers could potentially extract sensitive data, modify database contents, or gain unauthorized access.
💻 Affected Systems
- Hospital Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to theft of sensitive patient data, medical records, financial information, and potential system takeover.
Likely Case
Data exfiltration of patient records, user credentials, and system configuration information through blind SQL injection techniques.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing SQL injection.
🎯 Exploit Status
Public proof-of-concept available on GitHub. Exploitation requires sending specially crafted requests to the vulnerable endpoint.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Check for official vendor patch or updated version. 2. If unavailable, implement parameterized queries in func2.php. 3. Add input validation for all user inputs in register function. 4. Test thoroughly before deployment.
🔧 Temporary Workarounds
Web Application Firewall (WAF)
allDeploy WAF with SQL injection protection rules to block malicious requests.
Input Validation Filter
allImplement server-side input validation to reject SQL injection patterns.
🧯 If You Can't Patch
- Isolate the vulnerable system from internet access and restrict to internal network only.
- Implement strict network segmentation and monitor all traffic to/from the vulnerable endpoint.
🔍 How to Verify
Check if Vulnerable:
Send a crafted SQL injection payload to the register endpoint in func2.php and observe time-based or boolean-based responses.Check Version:
Check the software version in the admin panel or configuration files.Verify Fix Applied:
Test the same SQL injection payloads after remediation; they should be rejected or produce error messages without executing SQL.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed login/registration attempts with SQL-like patterns
- Long response times from func2.php endpoint
Network Indicators:
- HTTP requests to func2.php containing SQL keywords (SELECT, UNION, etc.)
- Unusual traffic patterns to registration endpoints
SIEM Query:
source="web_logs" AND (uri="*func2.php*" AND (content="*SELECT*" OR content="*UNION*" OR content="*OR 1=1*"))