CVE-2023-39185
📋 TL;DR
An out-of-bounds read vulnerability in Solid Edge SE2023 allows attackers to execute arbitrary code by tricking users into opening malicious PAR files. This affects all Solid Edge SE2023 users running versions before V223.0 Update 7. Successful exploitation could lead to complete system compromise.
💻 Affected Systems
- Solid Edge SE2023
📦 What is this software?
Solid Edge by Siemens
Solid Edge by Siemens
Solid Edge by Siemens
Solid Edge by Siemens
Solid Edge by Siemens
Solid Edge by Siemens
Solid Edge by Siemens
Solid Edge by Siemens
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining the same privileges as the Solid Edge process, potentially leading to data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Local privilege escalation or remote code execution when users open malicious PAR files, leading to malware installation or data exfiltration.
If Mitigated
Limited impact with proper application sandboxing and user privilege restrictions, potentially causing application crashes but not system compromise.
🎯 Exploit Status
Exploitation requires user interaction to open malicious files. No public exploits have been reported as of current knowledge.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: V223.0 Update 7
Vendor Advisory: https://cert-portal.siemens.com/productcert/pdf/ssa-811403.pdf
Restart Required: Yes
Instructions:
1. Download Solid Edge SE2023 V223.0 Update 7 from Siemens support portal. 2. Close all Solid Edge applications. 3. Run the update installer with administrative privileges. 4. Restart the system after installation completes.
🔧 Temporary Workarounds
Block PAR file execution
windowsPrevent Solid Edge from opening PAR files via group policy or application restrictions
Use Windows Group Policy to block .PAR file associations with Solid Edge
User awareness training
allTrain users not to open PAR files from untrusted sources
🧯 If You Can't Patch
- Implement application whitelisting to prevent unauthorized Solid Edge execution
- Restrict user privileges to limit potential damage from exploitation
🔍 How to Verify
Check if Vulnerable:
Check Solid Edge version in Help > About Solid Edge. If version is below V223.0 Update 7, system is vulnerable.Check Version:
In Solid Edge: Help > About Solid EdgeVerify Fix Applied:
Verify version shows V223.0 Update 7 or higher in Help > About Solid Edge after patching.📡 Detection & Monitoring
Log Indicators:
- Solid Edge crash logs with memory access violations
- Windows Event Logs showing Solid Edge process termination
Network Indicators:
- Unusual outbound connections from Solid Edge process
- File downloads of PAR files from untrusted sources
SIEM Query:
Process: 'sedge.exe' AND (EventID: 1000 OR EventID: 1001) AND Message: 'access violation'