CVE-2020-27240
📋 TL;DR
This vulnerability allows unauthenticated attackers to execute arbitrary SQL commands on OpenClinic GA systems through the componentStatus parameter in getAssets.jsp. Successful exploitation could lead to complete database compromise, data theft, or system takeover. All organizations running vulnerable versions of OpenClinic GA are affected.
💻 Affected Systems
- OpenClinic GA
📦 What is this software?
Openclinic Ga by Openclinic Ga Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to theft of all patient records, administrative credentials, and potential remote code execution on the underlying server.
Likely Case
Data exfiltration of sensitive patient information, modification of medical records, or disruption of healthcare operations.
If Mitigated
Limited impact with proper network segmentation, WAF rules blocking SQL injection patterns, and minimal database privileges.
🎯 Exploit Status
The vulnerability is straightforward to exploit with basic SQL injection knowledge and requires no authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.173.4 or later
Vendor Advisory: https://www.openclinic.com/security-advisories
Restart Required: Yes
Instructions:
1. Backup database and application files. 2. Download latest version from official OpenClinic repository. 3. Stop OpenClinic service. 4. Apply patch/upgrade. 5. Restart service. 6. Verify fix.
🔧 Temporary Workarounds
WAF Rule Implementation
allDeploy Web Application Firewall rules to block SQL injection patterns in componentStatus parameter
# Example ModSecurity rule: SecRule ARGS:componentStatus "@detectSQLi" "id:1001,phase:2,deny,status:403"
Access Restriction
linuxRestrict access to getAssets.jsp page using network ACLs or authentication
# Apache: <Location /getAssets.jsp> Require ip 192.168.1.0/24 </Location>
# Nginx: location /getAssets.jsp { allow 192.168.1.0/24; deny all; }
🧯 If You Can't Patch
- Implement strict input validation and parameterized queries for componentStatus parameter
- Deploy network segmentation to isolate OpenClinic from untrusted networks and implement strict firewall rules
🔍 How to Verify
Check if Vulnerable:
Send HTTP GET request to /getAssets.jsp?componentStatus=1' AND '1'='1 and check for SQL error responses or unexpected behaviorCheck Version:
Check OpenClinic version in web interface or configuration filesVerify Fix Applied:
Test the same SQL injection payload after patching - should receive proper error handling or no SQL errors📡 Detection & Monitoring
Log Indicators:
- SQL syntax errors in application logs
- Unusual database queries from web application user
- Multiple failed parameter validation attempts
Network Indicators:
- HTTP requests to getAssets.jsp with SQL keywords in parameters
- Unusual database traffic patterns from web server
SIEM Query:
source="web_logs" AND uri="/getAssets.jsp" AND (param="*componentStatus=*'*" OR param="*componentStatus=*%27*")