CVE-2020-9972
📋 TL;DR
This vulnerability allows arbitrary code execution or application crashes when processing malicious USD files on Apple devices. It affects iOS and iPadOS users who open untrusted USD files. Attackers could exploit this to take control of affected devices.
💻 Affected Systems
- iPhone
- iPad
- iPod touch
📦 What is this software?
Ipad Os by Apple
Macos by Apple
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⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete device compromise, data theft, and persistent access.
Likely Case
Application crashes (denial of service) when processing malicious files, with potential for limited code execution.
If Mitigated
No impact if devices are patched or don't process untrusted USD files.
🎯 Exploit Status
Exploitation requires user interaction to open malicious USD file. No public exploit code available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: iOS 14.0, iPadOS 14.0
Vendor Advisory: https://support.apple.com/en-us/HT211850
Restart Required: Yes
Instructions:
1. Go to Settings > General > Software Update. 2. Download and install iOS/iPadOS 14.0 or later. 3. Restart device after installation completes.
🔧 Temporary Workarounds
Disable USD file processing
allPrevent opening USD files from untrusted sources
User education
allTrain users not to open USD files from unknown sources
🧯 If You Can't Patch
- Restrict USD file processing to trusted sources only
- Implement application whitelisting to block USD file execution
🔍 How to Verify
Check if Vulnerable:
Check iOS/iPadOS version in Settings > General > About > VersionCheck Version:
Settings > General > About > VersionVerify Fix Applied:
Verify version is 14.0 or higher in Settings > General > About > Version📡 Detection & Monitoring
Log Indicators:
- Application crashes related to USD file processing
- Unexpected process terminations
Network Indicators:
- Downloads of USD files from untrusted sources
SIEM Query:
Process termination events with USD-related applications on iOS/iPadOS devices🔗 References
- https://support.apple.com/en-us/HT211850
- https://support.apple.com/kb/HT212003
- https://support.apple.com/kb/HT212005
- https://support.apple.com/kb/HT212011
- https://support.apple.com/en-us/HT211850
- https://support.apple.com/kb/HT212003
- https://support.apple.com/kb/HT212005
- https://support.apple.com/kb/HT212011
