CVE-2022-25406
📋 TL;DR
This CVE describes a SQL injection vulnerability in Tongda2000 v11.10's delete_query.php file via the DELETE_STR parameter. Attackers can execute arbitrary SQL commands, potentially compromising the database. Organizations using Tongda2000 v11.10 are affected.
💻 Affected Systems
- Tongda2000
📦 What is this software?
Tongda2000 by Tongda2000
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise allowing data theft, modification, deletion, or full system takeover through SQL injection leading to remote code execution.
Likely Case
Unauthenticated attackers exfiltrating sensitive data, modifying database contents, or escalating privileges.
If Mitigated
Limited impact with proper input validation, parameterized queries, and network segmentation preventing database access.
🎯 Exploit Status
Public proof-of-concept exists showing exploitation via HTTP requests to delete_query.php with malicious DELETE_STR parameter.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Check vendor website for security updates 2. Apply any available patches 3. Test in non-production environment first
🔧 Temporary Workarounds
Input Validation Filter
allImplement input validation to sanitize DELETE_STR parameter before processing
Modify delete_query.php to validate/sanitize DELETE_STR input
Web Application Firewall
allDeploy WAF with SQL injection protection rules
Configure WAF to block requests with SQL injection patterns in DELETE_STR parameter
🧯 If You Can't Patch
- Restrict network access to Tongda2000 application using firewall rules
- Implement database user with minimal privileges for the application
🔍 How to Verify
Check if Vulnerable:
Test by sending crafted SQL injection payload to delete_query.php?DELETE_STR=malicious_payloadCheck Version:
Check Tongda2000 version in admin interface or application filesVerify Fix Applied:
Test with same payload after remediation - should return error or no database impact📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts after delete_query.php access
- DELETE_STR parameter containing SQL keywords
Network Indicators:
- HTTP requests to delete_query.php with suspicious DELETE_STR values
- Unusual outbound database connections
SIEM Query:
source="web_logs" AND uri="*delete_query.php*" AND (query="*DELETE_STR*" AND (query="*OR*" OR query="*UNION*" OR query="*SELECT*"))