CVE-2021-3958
📋 TL;DR
CVE-2021-3958 is a blind SQL injection vulnerability in Ipack Automation Systems SCADA software that allows attackers to execute arbitrary SQL commands without seeing the results. This affects all versions before 1.1.0, potentially compromising industrial control systems.
💻 Affected Systems
- Ipack Automation Systems SCADA Software
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of SCADA system leading to industrial process manipulation, data theft, or system disruption
Likely Case
Data exfiltration, unauthorized access to control systems, or database manipulation
If Mitigated
Limited impact with proper network segmentation and input validation
🎯 Exploit Status
SQL injection vulnerabilities are well-understood and easily weaponized with automated tools
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.1.0 or later
Vendor Advisory: Not publicly documented in vendor advisory
Restart Required: Yes
Instructions:
1. Contact Ipack Automation Systems for version 1.1.0 or later
2. Backup current configuration and data
3. Install the updated version
4. Restart the SCADA system
5. Verify functionality
🔧 Temporary Workarounds
Network Segmentation
allIsolate SCADA systems from untrusted networks
Web Application Firewall
allDeploy WAF with SQL injection protection rules
🧯 If You Can't Patch
- Implement strict input validation and parameterized queries in custom code
- Deploy network monitoring and intrusion detection specifically for SQL injection patterns
🔍 How to Verify
Check if Vulnerable:
Check software version in SCADA system interface or installation directoryCheck Version:
Check via SCADA software interface or Windows Programs and FeaturesVerify Fix Applied:
Confirm version is 1.1.0 or later and test SQL injection attempts are blocked📡 Detection & Monitoring
Log Indicators:
- Unusual database queries
- SQL syntax errors in application logs
- Multiple failed login attempts
Network Indicators:
- SQL keywords in HTTP requests
- Unusual database connection patterns
- Excessive requests to database endpoints
SIEM Query:
source="scada_logs" AND ("SELECT" OR "UNION" OR "INSERT" OR "DELETE" OR "' OR '1'='1")