CVE-2023-37246
📋 TL;DR
This vulnerability allows attackers to execute arbitrary code by exploiting a heap-based buffer overflow when parsing malicious PRT files in Tecnomatix Plant Simulation. Affected users include anyone running vulnerable versions of Tecnomatix Plant Simulation V2201 or V2302 who opens untrusted PRT files.
💻 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 data theft, system manipulation, or lateral movement within the network.
Likely Case
Local code execution with user-level privileges when a user opens a malicious PRT file, potentially leading to malware installation or data exfiltration.
If Mitigated
No impact if users only open trusted PRT files from verified sources and the application runs with minimal privileges.
🎯 Exploit Status
Exploitation requires user interaction to open a malicious PRT file. Heap-based buffer overflows typically require more sophisticated exploitation than stack-based overflows.
🛠️ 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 PRT file handling
windowsConfigure system to open PRT files only with trusted applications and block execution from untrusted sources.
Run with reduced privileges
windowsConfigure Plant Simulation to run with standard user privileges instead of administrative rights.
🧯 If You Can't Patch
- Implement application whitelisting to prevent execution of unauthorized code
- Educate users to never open PRT files from untrusted sources
🔍 How to Verify
Check if Vulnerable:
Check Plant Simulation version via Help > About menu or examine installed programs in Control Panel.Check Version:
Not applicable - check via application GUIVerify Fix Applied:
Verify version number matches patched versions (V2201.0008 or V2302.0002) in Help > About menu.📡 Detection & Monitoring
Log Indicators:
- Application crashes when opening PRT files
- Unusual process creation from Plant Simulation
Network Indicators:
- Outbound connections from Plant Simulation to unexpected destinations
SIEM Query:
Process:PlantSimulation.exe AND (EventID:1000 OR EventID:1001)