CVE-2023-29863
📋 TL;DR
Medical Systems Co. Medisys Weblab Products v19.4.03 contains a SQL injection vulnerability in the WSDL files via the tem:statement parameter. This allows attackers to execute arbitrary SQL commands on the database. All systems running the vulnerable version are affected.
💻 Affected Systems
- Medical Systems Co. Medisys Weblab Products
📦 What is this software?
Weblab by Medisys
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data manipulation, authentication bypass, and potential remote code execution on the database server.
Likely Case
Unauthorized data access, extraction of sensitive medical information, and potential privilege escalation within the application.
If Mitigated
Limited impact with proper input validation, parameterized queries, and network segmentation in place.
🎯 Exploit Status
SQL injection via WSDL parameter is well-documented and easy to exploit with standard SQLi tools.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: http://medical.com
Restart Required: No
Instructions:
1. Contact Medical Systems Co. for patch availability
2. If patch exists, download from vendor portal
3. Apply patch following vendor instructions
4. Test application functionality
🔧 Temporary Workarounds
WSDL Input Validation
allImplement strict input validation for tem:statement parameter in WSDL endpoints
Not applicable - requires code changes
Web Application Firewall Rules
allDeploy WAF rules to block SQL injection patterns in WSDL requests
WAF-specific configuration required
🧯 If You Can't Patch
- Implement network segmentation to restrict access to Weblab services
- Deploy database monitoring to detect SQL injection attempts
🔍 How to Verify
Check if Vulnerable:
Test WSDL endpoints with SQL injection payloads in tem:statement parameterCheck Version:
Check application version in admin interface or configuration filesVerify Fix Applied:
Retest with SQL injection payloads after remediation to confirm no database errors or unexpected responses📡 Detection & Monitoring
Log Indicators:
- SQL syntax errors in application logs
- Unusual database query patterns
- Multiple failed WSDL requests
Network Indicators:
- SQL keywords in HTTP POST parameters
- Unusual traffic to WSDL endpoints
- Database error messages in HTTP responses
SIEM Query:
source="weblab_logs" AND ("SQL" OR "syntax" OR "tem:statement")