CVE-2022-42828
📋 TL;DR
This is a macOS kernel privilege escalation vulnerability that allows a malicious application to execute arbitrary code with kernel-level privileges. It affects macOS systems prior to Ventura 13, potentially enabling complete system compromise.
💻 Affected Systems
- macOS
📦 What is this software?
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 →⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with kernel-level access, allowing attackers to install persistent malware, bypass all security controls, access all data, and control the entire system.
Likely Case
Malicious applications gaining kernel privileges to bypass sandboxing, install rootkits, or perform other privileged operations while maintaining stealth.
If Mitigated
Limited impact if systems are already patched, running in isolated environments, or have additional security controls preventing malicious app execution.
🎯 Exploit Status
Exploitation requires a malicious application to be executed on the target system, suggesting user interaction or social engineering is needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Ventura 13
Vendor Advisory: https://support.apple.com/en-us/HT213488
Restart Required: Yes
Instructions:
1. Open System Settings 2. Click General 3. Click Software Update 4. Install macOS Ventura 13 or later 5. Restart when prompted
🧯 If You Can't Patch
- Restrict application installation to App Store only
- Implement application allowlisting to prevent unauthorized apps
🔍 How to Verify
Check if Vulnerable:
Check macOS version: if running macOS older than Ventura 13, system is vulnerable.Check Version:
sw_versVerify Fix Applied:
Verify macOS version is Ventura 13 or newer in System Settings > General > About.📡 Detection & Monitoring
Log Indicators:
- Unexpected kernel extensions loading
- Unusual privilege escalation attempts in system logs
- Suspicious application behavior with elevated privileges
Network Indicators:
- Unusual outbound connections from system processes
- Command and control traffic from kernel-level processes
SIEM Query:
Processes with parent-child relationship showing unexpected privilege escalation OR kernel extension loading from untrusted sources