CVE-2022-26768
📋 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, watchOS, and tvOS systems. Successful exploitation gives attackers complete control over affected devices.
💻 Affected Systems
- macOS
- watchOS
- tvOS
📦 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 →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
Complete system compromise with kernel-level persistence, data theft, and ability to install backdoors or ransomware.
Likely Case
Privilege escalation from userland to kernel, enabling installation of malware, credential theft, and lateral movement.
If Mitigated
Limited impact if systems are fully patched and have proper application sandboxing and security controls.
🎯 Exploit Status
Requires local application execution. Memory corruption vulnerabilities often have public exploits developed over time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Monterey 12.4, macOS Big Sur 11.6.6, watchOS 8.6, tvOS 15.5
Vendor Advisory: https://support.apple.com/en-us/HT213253
Restart Required: Yes
Instructions:
1. Open System Preferences > Software Update. 2. Install available updates. 3. Restart the device when prompted.
🔧 Temporary Workarounds
Application Control
allRestrict execution of untrusted applications to reduce attack surface.
🧯 If You Can't Patch
- Implement strict application allowlisting to prevent execution of untrusted code
- Isolate vulnerable systems in network segments with limited access
🔍 How to Verify
Check if Vulnerable:
Check macOS version: System Preferences > About This Mac. For watchOS/tvOS: Settings > General > About.Check Version:
macOS: sw_vers -productVersion; watchOS/tvOS: Check in device settingsVerify Fix Applied:
Verify version is Monterey 12.4+, Big Sur 11.6.6+, watchOS 8.6+, or tvOS 15.5+.📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- Unexpected privilege escalation attempts
- Suspicious process creation with elevated privileges
Network Indicators:
- Unusual outbound connections from system processes
- Beaconing behavior after local compromise
SIEM Query:
Process creation events where parent process is user application and child process has SYSTEM/root privileges🔗 References
- http://seclists.org/fulldisclosure/2022/Jul/12
- https://support.apple.com/en-us/HT213253
- https://support.apple.com/en-us/HT213254
- https://support.apple.com/en-us/HT213256
- https://support.apple.com/en-us/HT213257
- https://support.apple.com/kb/HT213346
- http://seclists.org/fulldisclosure/2022/Jul/12
- https://support.apple.com/en-us/HT213253
- https://support.apple.com/en-us/HT213254
- https://support.apple.com/en-us/HT213256
- https://support.apple.com/en-us/HT213257
- https://support.apple.com/kb/HT213346
