CVE-2020-9888
📋 TL;DR
This vulnerability allows attackers to execute arbitrary code by tricking users into processing a malicious audio file. It affects Apple iOS, iPadOS, macOS, tvOS, and watchOS devices. Successful exploitation could give attackers full control of the affected device.
💻 Affected Systems
- iOS
- iPadOS
- macOS
- tvOS
- watchOS
📦 What is this software?
Ipados by Apple
Tvos by Apple
Watchos by Apple
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise leading to data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Malware installation, credential theft, or unauthorized access to device data and functions.
If Mitigated
Limited impact with proper network segmentation, application whitelisting, and user awareness training.
🎯 Exploit Status
Exploitation requires user interaction to process malicious audio file. No public exploit code is known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: iOS 13.6, iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8
Vendor Advisory: https://support.apple.com/HT211288
Restart Required: Yes
Instructions:
1. Go to Settings > General > Software Update on iOS/iPadOS/watchOS. 2. Go to System Preferences > Software Update on macOS. 3. Install the latest available update. 4. Restart device after installation.
🔧 Temporary Workarounds
Disable automatic audio file processing
allPrevent automatic processing of audio files from untrusted sources
User awareness training
allTrain users to avoid opening audio files from unknown or untrusted sources
🧯 If You Can't Patch
- Implement network segmentation to isolate vulnerable devices
- Deploy application whitelisting to prevent unauthorized code execution
🔍 How to Verify
Check if Vulnerable:
Check device version against affected versions listCheck Version:
iOS/iPadOS: Settings > General > About > Version; macOS: Apple menu > About This Mac; tvOS: Settings > General > About; watchOS: Settings > General > AboutVerify Fix Applied:
Verify device is running patched version: iOS 13.6+, iPadOS 13.6+, macOS 10.15.6+, tvOS 13.4.8+, watchOS 6.2.8+📡 Detection & Monitoring
Log Indicators:
- Unexpected audio file processing
- Crash reports from audio-related processes
- Unusual process execution following audio file access
Network Indicators:
- Downloads of suspicious audio files
- Outbound connections from audio processing applications
SIEM Query:
source="apple_audioprocess" AND (event="crash" OR event="unexpected_execution")