CVE-2025-30031
📋 TL;DR
This SQL injection vulnerability in TeleControl Server Basic allows authenticated remote attackers to bypass authorization controls, read/write to the database, and execute code with NetworkService permissions. All versions before V3.1.2.2 are affected. Attackers need access to port 8000 on systems running vulnerable versions.
💻 Affected Systems
- TeleControl Server Basic
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with NetworkService privileges leading to lateral movement, data exfiltration, and persistent backdoor installation.
Likely Case
Database manipulation, credential theft, and unauthorized access to control systems data.
If Mitigated
Limited impact due to network segmentation and strict access controls preventing port 8000 exposure.
🎯 Exploit Status
SQL injection vulnerabilities are typically easy to exploit once identified. Requires authenticated access to port 8000.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: V3.1.2.2
Vendor Advisory: https://cert-portal.siemens.com/productcert/html/ssa-443402.html
Restart Required: Yes
Instructions:
1. Download V3.1.2.2 or later from Siemens official sources. 2. Backup configuration and data. 3. Stop TeleControl Server Basic service. 4. Install the update. 5. Restart the service and verify functionality.
🔧 Temporary Workarounds
Network Segmentation
windowsRestrict access to port 8000/TCP to only trusted management networks
Windows Firewall: New-NetFirewallRule -DisplayName "Block TeleControl Port 8000" -Direction Inbound -LocalPort 8000 -Protocol TCP -Action Block
netsh advfirewall firewall add rule name="Block TeleControl Port 8000" dir=in action=block protocol=TCP localport=8000
Authentication Hardening
allImplement strong authentication policies and monitor for suspicious login attempts
🧯 If You Can't Patch
- Implement strict network access controls to limit port 8000 exposure to minimal necessary sources
- Deploy web application firewall (WAF) with SQL injection protection rules in front of the service
🔍 How to Verify
Check if Vulnerable:
Check TeleControl Server Basic version in application interface or registry: HKEY_LOCAL_MACHINE\SOFTWARE\Siemens\TeleControl Server Basic\VersionCheck Version:
reg query "HKLM\SOFTWARE\Siemens\TeleControl Server Basic" /v VersionVerify Fix Applied:
Verify version is V3.1.2.2 or later and test UpdateUsers functionality with SQL injection test payloads📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in application logs
- Multiple failed authentication attempts followed by UpdateUsers access
- Unexpected process execution with NetworkService context
Network Indicators:
- SQL injection patterns in traffic to port 8000
- Unusual database queries from TeleControl Server process
- Unexpected outbound connections from NetworkService account
SIEM Query:
source="telecontrol_logs" AND ("UpdateUsers" AND ("UNION" OR "SELECT" OR "INSERT" OR "DELETE" OR "--" OR "' OR"))