CVE-2023-51050
📋 TL;DR
S-CMS v5.0 contains a SQL injection vulnerability in the A_productauth parameter at /admin/ajax.php. This allows attackers to execute arbitrary SQL commands on the database. All systems running S-CMS v5.0 are affected.
💻 Affected Systems
- S-CMS
📦 What is this software?
S Cms by S Cms
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data manipulation, authentication bypass, and potential remote code execution via database functions.
Likely Case
Database information disclosure, data manipulation, and potential privilege escalation within the application.
If Mitigated
Limited impact with proper input validation and parameterized queries in place.
🎯 Exploit Status
SQL injection via GET/POST parameter suggests straightforward exploitation with common SQLi tools.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available or implementing workarounds.
🔧 Temporary Workarounds
Input Validation Filter
allImplement strict input validation for the A_productauth parameter to only accept expected values.
WAF Rule Implementation
allDeploy web application firewall rules to block SQL injection patterns targeting the /admin/ajax.php endpoint.
🧯 If You Can't Patch
- Restrict access to /admin/ajax.php to trusted IP addresses only
- Implement parameterized queries or prepared statements for all database interactions
🔍 How to Verify
Check if Vulnerable:
Test the /admin/ajax.php endpoint with SQL injection payloads in the A_productauth parameter and observe database errors or unexpected behavior.Check Version:
Check S-CMS version in admin panel or configuration files; typically found in version.php or similar files.Verify Fix Applied:
Test with SQL injection payloads after implementing fixes; successful payloads should be rejected or sanitized without database errors.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL syntax in access logs for /admin/ajax.php
- Database error messages in application logs
- Multiple failed parameter manipulation attempts
Network Indicators:
- SQL keywords in HTTP requests to /admin/ajax.php
- Unusual parameter values in POST/GET requests
SIEM Query:
source="web_access.log" AND uri="/admin/ajax.php" AND (param="A_productauth" AND value MATCHES "(?i)(union|select|insert|update|delete|drop|exec|--|#|;)")