CVE-2024-7993
📋 TL;DR
This vulnerability allows an attacker to execute arbitrary code by tricking a user into opening a malicious PDF file in Autodesk Revit. It affects all users running vulnerable versions of Autodesk Revit software. The attacker could gain the same privileges as the current user process.
💻 Affected Systems
- Autodesk Revit
📦 What is this software?
Revit by Autodesk
Revit by Autodesk
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with user privileges, potentially leading to full system compromise, data theft, or ransomware deployment.
Likely Case
Application crash or denial of service when users open malicious PDF files, with potential for limited code execution in some scenarios.
If Mitigated
No impact if PDF files are not opened in Revit or if proper security controls block malicious files.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious PDF). No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to Autodesk Security Advisory ADSK-SA-2024-0018 for specific patched versions
Vendor Advisory: https://www.autodesk.com/trust/security-advisories/adsk-sa-2024-0018
Restart Required: Yes
Instructions:
1. Visit the Autodesk Security Advisory page
2. Identify the patched version for your Revit installation
3. Update through Autodesk Account or Autodesk Desktop App
4. Restart Revit after installation
🔧 Temporary Workarounds
Disable PDF parsing in Revit
windowsPrevent Revit from opening PDF files by modifying file associations
Right-click PDF files → Open with → Choose another app → Uncheck 'Always use this app' → Select a different PDF reader
Implement application whitelisting
windowsRestrict execution of Revit to trusted locations only
🧯 If You Can't Patch
- Implement strict email filtering for PDF attachments
- Educate users to never open PDF files in Revit and use dedicated PDF readers instead
🔍 How to Verify
Check if Vulnerable:
Check Revit version against affected versions listed in Autodesk Security Advisory ADSK-SA-2024-0018Check Version:
In Revit: Help → About Autodesk RevitVerify Fix Applied:
Verify Revit version matches or exceeds the patched version specified in the advisory📡 Detection & Monitoring
Log Indicators:
- Application crashes of Revit.exe
- Unexpected process creation from Revit
- Memory access violations in Revit logs
Network Indicators:
- Unusual outbound connections from Revit process
- PDF file downloads followed by Revit execution
SIEM Query:
Process:Revit.exe AND (EventID:1000 OR EventID:1001) OR FilePath:*.pdf AND Process:Revit.exe