CVE-2023-28181
📋 TL;DR
This is a memory corruption vulnerability in Apple operating systems that allows an application to execute arbitrary code with kernel privileges. It affects macOS, iOS, iPadOS, tvOS, and watchOS. Successful exploitation gives attackers complete control over affected devices.
💻 Affected Systems
- macOS
- iOS
- iPadOS
- tvOS
- watchOS
📦 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 →Tvos by Apple
Watchos by Apple
⚠️ Risk & Real-World Impact
Worst Case
Full device compromise with kernel-level persistence, data theft, and ability to bypass all security controls.
Likely Case
Malicious app gains kernel privileges to install persistent malware, intercept sensitive data, or disable security features.
If Mitigated
Limited impact if devices are fully patched and app installation is restricted to trusted sources only.
🎯 Exploit Status
Requires user to install/execute a malicious application. No public exploit code available at disclosure.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Ventura 13.3, iOS 16.4, iPadOS 16.4, iOS 15.7.6, iPadOS 15.7.6, macOS Monterey 12.6.4, macOS Big Sur 11.7.7, tvOS 16.4, watchOS 9.4
Vendor Advisory: https://support.apple.com/en-us/HT213670
Restart Required: Yes
Instructions:
1. Go to System Settings > General > Software Update. 2. Install available updates. 3. Restart device when prompted.
🔧 Temporary Workarounds
Restrict App Installation
macosOnly allow installation from App Store and identified developers
System Settings > Privacy & Security > Allow apps downloaded from: App Store
🧯 If You Can't Patch
- Implement strict application allowlisting policies
- Isolate vulnerable devices from critical networks and data
🔍 How to Verify
Check if Vulnerable:
Check current OS version against affected versions listCheck Version:
macOS: sw_vers -productVersion, iOS/iPadOS: Settings > General > About > VersionVerify Fix Applied:
Verify OS version matches or exceeds patched versions📡 Detection & Monitoring
Log Indicators:
- Unexpected kernel extensions loading
- Processes running with elevated privileges unexpectedly
Network Indicators:
- Unusual outbound connections from system processes
SIEM Query:
process where parent_process_name contains "kernel" and process_name not in (expected_kernel_processes)🔗 References
- https://support.apple.com/en-us/HT213670
- https://support.apple.com/en-us/HT213674
- https://support.apple.com/en-us/HT213676
- https://support.apple.com/en-us/HT213677
- https://support.apple.com/en-us/HT213678
- https://support.apple.com/en-us/HT213760
- https://support.apple.com/en-us/HT213765
- https://support.apple.com/en-us/HT213670
- https://support.apple.com/en-us/HT213674
- https://support.apple.com/en-us/HT213676
- https://support.apple.com/en-us/HT213677
- https://support.apple.com/en-us/HT213678
- https://support.apple.com/en-us/HT213760
- https://support.apple.com/en-us/HT213765
