CVE-2023-41846
📋 TL;DR
A memory corruption vulnerability in Tecnomatix Plant Simulation allows attackers to execute arbitrary code by tricking users into opening malicious SPP files. This affects all versions of Plant Simulation V2201 before V2201.0008 and V2302 before V2302.0002. Users who open untrusted SPP files are at risk.
💻 Affected Systems
- Tecnomatix Plant Simulation V2201
- Tecnomatix Plant Simulation V2302
📦 What is this software?
Tecnomatix by Siemens
Tecnomatix by Siemens
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining the same privileges as the Plant Simulation process, potentially leading to lateral movement, data theft, or ransomware deployment.
Likely Case
Local privilege escalation or malware execution when users open malicious SPP files from untrusted sources.
If Mitigated
Limited impact with proper user training and file validation controls preventing malicious SPP file execution.
🎯 Exploit Status
Exploitation requires user interaction to open malicious SPP files. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: V2201.0008 for V2201, V2302.0002 for V2302
Vendor Advisory: https://cert-portal.siemens.com/productcert/pdf/ssa-764801.pdf
Restart Required: Yes
Instructions:
1. Download the appropriate update from Siemens support portal. 2. Close all Plant Simulation instances. 3. Run the installer with administrative privileges. 4. Restart the system if prompted.
🔧 Temporary Workarounds
Restrict SPP file handling
windowsConfigure system to open SPP files only with trusted applications or in sandboxed environments.
User awareness training
allTrain users to only open SPP files from trusted sources and verify file integrity before opening.
🧯 If You Can't Patch
- Implement application whitelisting to restrict execution of Plant Simulation to authorized systems only.
- Deploy endpoint detection and response (EDR) solutions to monitor for suspicious process behavior and memory corruption attempts.
🔍 How to Verify
Check if Vulnerable:
Check Plant Simulation version via Help > About menu. If version is V2201 below 0008 or V2302 below 0002, system is vulnerable.Check Version:
Not applicable - check via application GUI Help > About menuVerify Fix Applied:
After patching, verify version shows V2201.0008 or V2302.0002 in Help > About menu.📡 Detection & Monitoring
Log Indicators:
- Application crashes when opening SPP files
- Unusual memory allocation patterns in Plant Simulation process
Network Indicators:
- Downloads of SPP files from untrusted sources
- Outbound connections from Plant Simulation process to suspicious IPs
SIEM Query:
Process:PlantSimulation.exe AND (EventID:1000 OR EventID:1001) AND FileExtension:.spp