CVE-2023-38424
📋 TL;DR
This vulnerability allows a malicious app to execute arbitrary code with kernel privileges on affected Apple devices. It affects iOS, iPadOS, and macOS systems before specific patched versions. Successful exploitation could lead to complete system compromise.
💻 Affected Systems
- iOS
- iPadOS
- macOS
📦 What is this software?
Ipados by Apple
Macos by Apple
macOS is Apple's desktop and laptop operating system powering Mac computers used by millions of professionals, developers, creative professionals, and enterprise users worldwide. Built on a Unix foundation with the Darwin kernel and modern Cocoa frameworks, macOS delivers a seamless ecosystem integr...
Learn more about Macos →⚠️ Risk & Real-World Impact
Worst Case
Complete system takeover with kernel-level access, allowing installation of persistent malware, data theft, and bypassing all security controls.
Likely Case
Malicious app gains full system control, potentially stealing sensitive data, installing backdoors, or disabling security features.
If Mitigated
Limited impact if devices are properly segmented and app installation is restricted to trusted sources only.
🎯 Exploit Status
Exploitation requires user to install a malicious app. No public exploit code is known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: iOS 16.6, iPadOS 16.6, macOS Ventura 13.5
Vendor Advisory: https://support.apple.com/en-us/HT213841
Restart Required: Yes
Instructions:
1. Go to Settings > General > Software Update. 2. Download and install the available update. 3. Restart the device when prompted.
🔧 Temporary Workarounds
Restrict App Installation
allOnly allow installation of apps from trusted sources like the App Store
For iOS/iPadOS: Settings > Screen Time > Content & Privacy Restrictions > iTunes & App Store Purchases > Installing Apps > Don't Allow
🧯 If You Can't Patch
- Isolate affected devices from critical networks and sensitive data
- Implement strict application allowlisting and monitor for unauthorized app installations
🔍 How to Verify
Check if Vulnerable:
Check device version in Settings > General > About > Software VersionCheck Version:
For macOS: sw_vers -productVersionVerify Fix Applied:
Verify version is iOS 16.6+, iPadOS 16.6+, or macOS Ventura 13.5+📡 Detection & Monitoring
Log Indicators:
- Unexpected kernel extensions loading
- Unusual app installation events
- System integrity protection (SIP) violations
Network Indicators:
- Unusual outbound connections from system processes
- Suspicious network traffic patterns
SIEM Query:
source="apple_system_logs" AND (event="kernel_extension_load" OR event="app_install") AND status="unauthorized"