CVE-2024-9727
📋 TL;DR
This is a use-after-free vulnerability in Trimble SketchUp Viewer's SKP file parser that allows remote code execution. Attackers can exploit it by tricking users into opening malicious SKP files or visiting malicious web pages. All users of affected SketchUp Viewer versions are at risk.
💻 Affected Systems
- Trimble SketchUp Viewer
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control of the victim's machine, potentially leading to data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Local privilege escalation leading to installation of malware, data exfiltration, or persistence mechanisms on the compromised system.
If Mitigated
Application crash or denial of service if exploit fails or is blocked by security controls.
🎯 Exploit Status
Exploitation requires user interaction but no authentication. ZDI has confirmed the vulnerability and exploitation is likely given the RCE nature.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Trimble security advisory for specific patched version
Vendor Advisory: https://help.sketchup.com/en/release-notes/sketchup-viewer
Restart Required: Yes
Instructions:
1. Open SketchUp Viewer
2. Go to Help > Check for Updates
3. Install available updates
4. Restart the application
🔧 Temporary Workarounds
Disable SKP file association
allPrevent SketchUp Viewer from automatically opening SKP files
Windows: Control Panel > Default Programs > Associate a file type or protocol with a program > Change .skp to open with different application
macOS: Right-click SKP file > Get Info > Open with > Choose different application
Application control blocking
allBlock SketchUp Viewer execution via application whitelisting
🧯 If You Can't Patch
- Implement strict email/web filtering to block SKP file downloads
- Use endpoint protection with behavior monitoring to detect exploitation attempts
- Educate users not to open SKP files from untrusted sources
- Consider temporary removal of SketchUp Viewer from high-risk systems
🔍 How to Verify
Check if Vulnerable:
Check SketchUp Viewer version against vendor advisory for affected versionsCheck Version:
Windows: Open SketchUp Viewer > Help > About SketchUp Viewer
macOS: Open SketchUp Viewer > SketchUp Viewer > About SketchUp ViewerVerify Fix Applied:
Verify SketchUp Viewer version is updated to patched version specified in vendor advisory📡 Detection & Monitoring
Log Indicators:
- Application crashes of SketchUp Viewer
- Unusual process creation from SketchUp Viewer
- Network connections from SketchUp Viewer to suspicious IPs
Network Indicators:
- Downloads of SKP files from untrusted sources
- Outbound connections from SketchUp Viewer process
SIEM Query:
process_name:"SketchUp Viewer" AND (event_type:crash OR parent_process:unusual OR network_connection:external)