CVE-2024-33493
📋 TL;DR
This vulnerability in Solid Edge allows attackers to execute arbitrary code by exploiting an out-of-bounds read when parsing malicious PAR files. All users running Solid Edge versions before V224.0 Update 5 are affected. Successful exploitation could lead to complete system compromise.
💻 Affected Systems
- Solid Edge
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system takeover with attacker executing arbitrary code in the context of the current process, potentially leading to data theft, ransomware deployment, or lateral movement.
Likely Case
Local privilege escalation or remote code execution when users open malicious PAR files, leading to system compromise.
If Mitigated
Limited impact if proper application whitelisting and file validation are in place, though the vulnerability remains exploitable.
🎯 Exploit Status
Exploitation requires user interaction to open a malicious PAR file. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: V224.0 Update 5
Vendor Advisory: https://cert-portal.siemens.com/productcert/html/ssa-589937.html
Restart Required: Yes
Instructions:
1. Download Solid Edge V224.0 Update 5 from Siemens support portal. 2. Close all Solid Edge applications. 3. Run the installer with administrative privileges. 4. Restart the system after installation completes.
🔧 Temporary Workarounds
Block PAR file extensions
windowsPrevent Solid Edge from processing PAR files by blocking the file extension at the system or network level.
Using Group Policy: Computer Configuration > Policies > Windows Settings > Security Settings > Software Restriction Policies > Additional Rules > New Path Rule: Path: *.par, Security Level: Disallowed
Application control policies
windowsImplement application whitelisting to restrict execution of Solid Edge to trusted locations only.
🧯 If You Can't Patch
- Implement strict email filtering to block PAR file attachments
- Educate users to never open PAR files from untrusted sources and to verify file integrity before opening
🔍 How to Verify
Check if Vulnerable:
Check Solid Edge version: Open Solid Edge > Help > About Solid Edge. If version is earlier than V224.0 Update 5, the system is vulnerable.Check Version:
wmic product where name="Solid Edge" get versionVerify Fix Applied:
Verify installation of V224.0 Update 5 in Control Panel > Programs and Features, and confirm version in Solid Edge About dialog.📡 Detection & Monitoring
Log Indicators:
- Windows Application logs showing Solid Edge crashes when processing PAR files
- Security logs showing unexpected process creation from Solid Edge
Network Indicators:
- Downloads of PAR files from untrusted sources
- Unusual outbound connections from Solid Edge process
SIEM Query:
EventID=1000 AND Source="Application Error" AND ProcessName="Edge.exe" AND FaultingModulePath LIKE "%.par"