CVE-2023-25140
📋 TL;DR
This vulnerability allows remote code execution through specially crafted PAR files in Siemens Parasolid and Solid Edge software. An attacker can exploit an out-of-bounds read vulnerability to execute arbitrary code in the context of the current process. Affected users include those running vulnerable versions of Parasolid V34.0, V34.1, V35.0, V35.1, and Solid Edge SE2022.
💻 Affected Systems
- Parasolid
- Solid Edge SE2022
📦 What is this software?
Parasolid by Siemens
Parasolid by Siemens
Parasolid by Siemens
Parasolid by Siemens
Solid Edge by Siemens
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through remote code execution, potentially leading to data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Application crash or denial of service, with potential for limited code execution depending on exploit sophistication.
If Mitigated
No impact if proper file validation and patching are implemented.
🎯 Exploit Status
Exploitation requires user interaction to open malicious PAR files. No public exploits known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Parasolid V34.0.254, V34.1.242, V35.0.170, V35.1.150, Solid Edge SE2022 V222.0MP12
Vendor Advisory: https://cert-portal.siemens.com/productcert/pdf/ssa-491245.pdf
Restart Required: Yes
Instructions:
1. Download latest patches from Siemens support portal. 2. Apply patches to affected Parasolid/Solid Edge installations. 3. Restart affected systems. 4. Verify version updates.
🔧 Temporary Workarounds
Restrict PAR file processing
allBlock or restrict processing of PAR files from untrusted sources
Application sandboxing
allRun Parasolid/Solid Edge in restricted environments
🧯 If You Can't Patch
- Implement strict file validation for PAR files before processing
- Use application whitelisting to prevent unauthorized execution
🔍 How to Verify
Check if Vulnerable:
Check installed version against affected version ranges in Parasolid/Solid Edge about dialogCheck Version:
Check application about dialog or use vendor-specific version query toolsVerify Fix Applied:
Confirm version is equal to or greater than patched versions: V34.0.254, V34.1.242, V35.0.170, V35.1.150, or V222.0MP12📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing PAR files
- Unexpected process creation from Parasolid/Solid Edge
Network Indicators:
- Downloads of PAR files from untrusted sources
SIEM Query:
Process creation events from parasolid.exe or solid edge executables with suspicious parent processes