CVE-2019-12348
📋 TL;DR
This SQL injection vulnerability in zzcms 2019 allows attackers to execute arbitrary SQL commands through the daohang or img POST parameters in user/ztconfig.php. This affects all systems running vulnerable versions of zzcms 2019, potentially compromising database integrity and confidentiality.
💻 Affected Systems
- zzcms
📦 What is this software?
Zzcms by Zzcms
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data manipulation, privilege escalation, and potential remote code execution via database functions.
Likely Case
Unauthorized data access, extraction of sensitive information (user credentials, personal data), and potential database corruption.
If Mitigated
Limited impact with proper input validation, parameterized queries, and web application firewall rules blocking SQL injection patterns.
🎯 Exploit Status
SQL injection via POST parameters is well-understood and easily automated. The GitHub reference shows proof-of-concept exploitation details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version of zzcms if available, or implement workarounds.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd server-side validation to sanitize daohang and img parameters before processing
Edit user/ztconfig.php to add parameter validation using prepared statements or input filtering
Web Application Firewall Rules
allImplement WAF rules to block SQL injection patterns targeting the vulnerable endpoint
Add rule to block requests containing SQL keywords in daohang or img parameters to user/ztconfig.php
🧯 If You Can't Patch
- Restrict access to user/ztconfig.php via network controls or authentication
- Implement database-level protections: use least privilege accounts, enable query logging for suspicious patterns
🔍 How to Verify
Check if Vulnerable:
Test by sending SQL injection payloads in daohang or img POST parameters to /user/ztconfig.php and observing database errors or unexpected responsesCheck Version:
Check zzcms version in admin panel or configuration filesVerify Fix Applied:
Verify that SQL injection payloads no longer execute and return appropriate error messages or are blocked📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in web server logs
- Multiple POST requests to user/ztconfig.php with suspicious parameters
- Database query logs showing unexpected SQL commands
Network Indicators:
- HTTP POST requests to /user/ztconfig.php containing SQL keywords (SELECT, UNION, etc.) in parameters
SIEM Query:
source="web_server" AND uri="/user/ztconfig.php" AND (param="daohang" OR param="img") AND (value="*SELECT*" OR value="*UNION*" OR value="*OR*1=1*")