CVE-2018-17393

9.8 CRITICAL

📋 TL;DR

This CVE describes a SQL injection vulnerability in HealthNode Hospital Management System 1.0 that allows attackers to execute arbitrary SQL commands via the id parameter in patient information pages. This affects all installations of HealthNode Hospital Management System 1.0, potentially exposing sensitive patient data and system control.

💻 Affected Systems

Products:
  • HealthNode Hospital Management System
Versions: 1.0
Operating Systems: Any OS running PHP and MySQL/MariaDB
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all installations of version 1.0. Requires PHP and database backend.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise leading to patient data exfiltration, system takeover, and potential ransomware deployment across the hospital network.

🟠

Likely Case

Unauthorized access to patient records, modification of medical data, and potential privilege escalation within the system.

🟢

If Mitigated

Limited impact with proper input validation and database permissions preventing successful exploitation.

🌐 Internet-Facing: HIGH - Web application accessible from internet with SQL injection vulnerability.
🏢 Internal Only: HIGH - Even internal systems contain sensitive patient data that could be compromised.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: CONFIRMED
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploit code is publicly available on Exploit-DB. Simple SQL injection requiring minimal technical skill.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Not available

Restart Required: No

Instructions:

No official patch available. Consider migrating to alternative hospital management systems or implementing workarounds.

🔧 Temporary Workarounds

Input Validation and Parameterized Queries

all

Implement proper input validation and use prepared statements/parameterized queries for all database operations.

Modify info.php and patientdetails.php to use PDO or mysqli prepared statements

Web Application Firewall (WAF)

all

Deploy WAF rules to block SQL injection patterns in HTTP requests.

Configure WAF to block SQL injection patterns: ' OR '1'='1, UNION SELECT, etc.

🧯 If You Can't Patch

  • Isolate the system behind a firewall with strict access controls and monitor all database queries.
  • Implement database-level controls: restrict user permissions, enable query logging, and use database firewalls.

🔍 How to Verify

Check if Vulnerable:

Test /dashboard/Patient/info.php?id=1' OR '1'='1 and /dashboard/Patient/patientdetails.php?id=1' OR '1'='1 for SQL errors.

Check Version:

Check system documentation or about page for version information.

Verify Fix Applied:

Test the same injection attempts and verify they return proper error messages or no data instead of executing SQL.

📡 Detection & Monitoring

Log Indicators:

  • Unusual database queries from web application, SQL syntax errors in application logs, multiple failed login attempts via SQL injection

Network Indicators:

  • HTTP requests containing SQL keywords (SELECT, UNION, OR) in URL parameters, unusual database port traffic from web servers

SIEM Query:

source="web_logs" AND (url="*id=*' OR*" OR url="*id=* UNION*" OR url="*id=* SELECT*")

🔗 References

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