CVE-2023-4766
📋 TL;DR
This SQL injection vulnerability in Movus software allows attackers to execute arbitrary SQL commands by injecting malicious input. It affects all Movus installations before version 20230913, potentially compromising database integrity and confidentiality.
💻 Affected Systems
- Movus
📦 What is this software?
Movus by Movus
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data manipulation, privilege escalation, and potential remote code execution through database functions.
Likely Case
Unauthorized data access, data exfiltration, and potential authentication bypass leading to unauthorized system access.
If Mitigated
Limited impact with proper input validation, parameterized queries, and network segmentation preventing database access.
🎯 Exploit Status
SQL injection vulnerabilities typically have low exploitation complexity and can be exploited with basic SQL knowledge.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 20230913 or later
Vendor Advisory: https://www.usom.gov.tr/bildirim/tr-23-0524
Restart Required: Yes
Instructions:
1. Download Movus version 20230913 or later from official sources. 2. Backup current installation and database. 3. Apply the update following vendor instructions. 4. Restart the Movus service. 5. Verify the update was successful.
🔧 Temporary Workarounds
Web Application Firewall (WAF)
allDeploy a WAF with SQL injection protection rules to block malicious SQL payloads.
Input Validation Filter
allImplement strict input validation to reject SQL special characters in user inputs.
🧯 If You Can't Patch
- Implement network segmentation to isolate Movus from critical databases and other systems.
- Enable detailed SQL query logging and monitor for suspicious database activity patterns.
🔍 How to Verify
Check if Vulnerable:
Check Movus version in administration panel or configuration files. If version is earlier than 20230913, system is vulnerable.Check Version:
Check Movus web interface admin panel or consult configuration files for version information.Verify Fix Applied:
Confirm version is 20230913 or later and test SQL injection payloads are properly rejected.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL query patterns
- Multiple failed login attempts with SQL syntax
- Database error messages containing user input
Network Indicators:
- HTTP requests containing SQL keywords (SELECT, UNION, DROP, etc.)
- Unusual database connection patterns
SIEM Query:
source="movus_logs" AND ("SQL syntax" OR "SELECT *" OR "UNION SELECT" OR "DROP TABLE")