CVE-2021-46459
📋 TL;DR
Victor CMS v1.0 contains SQL injection vulnerabilities in the user management component that allow attackers to execute arbitrary SQL commands. This affects administrators who can access the vulnerable admin interface, potentially leading to data theft or system compromise.
💻 Affected Systems
- Victor CMS
📦 What is this software?
Victor Cms by Victor Cms Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data exfiltration, privilege escalation, or remote code execution via database functions.
Likely Case
Unauthorized data access, modification, or deletion of user records and CMS content.
If Mitigated
Limited impact with proper input validation and database permissions restricting damage scope.
🎯 Exploit Status
Exploitation requires admin authentication but uses simple SQL injection techniques with publicly available proof-of-concept code.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None known
Restart Required: No
Instructions:
No official patch available. Consider migrating to alternative CMS solutions or implementing custom fixes with parameterized queries.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side input validation for user_name, user_firstname, user_lastname, and user_email parameters
WAF Rule Implementation
allDeploy web application firewall rules to block SQL injection patterns targeting the vulnerable endpoint
🧯 If You Can't Patch
- Restrict access to admin interface using IP whitelisting and strong authentication
- Implement database user with minimal privileges for the CMS application
🔍 How to Verify
Check if Vulnerable:
Test the admin/users.php?source=add_user endpoint with SQL injection payloads in user parametersCheck Version:
Check CMS version in configuration files or admin interfaceVerify Fix Applied:
Verify parameterized queries are implemented and test with SQL injection payloads📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in logs
- Multiple failed login attempts followed by admin access
- Suspicious POST requests to admin/users.php with SQL keywords
Network Indicators:
- POST requests to admin/users.php containing SQL injection patterns
- Unusual database query patterns from CMS server
SIEM Query:
source="web_logs" AND uri="/admin/users.php" AND (user_name="*' OR *" OR user_email="*' OR *")