CVE-2024-27842
📋 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 running versions before Sonoma 14.5. An attacker could gain complete control over the affected system.
💻 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 →⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with kernel-level access, allowing installation of persistent malware, data theft, and disabling of security controls.
Likely Case
Local privilege escalation leading to unauthorized administrative access and potential lateral movement within the network.
If Mitigated
Limited impact if proper application sandboxing and least privilege principles are enforced, though kernel access remains dangerous.
🎯 Exploit Status
Exploitation requires local access and ability to execute code. The CWE-358 classification suggests improper privilege management.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Sonoma 14.5
Vendor Advisory: https://support.apple.com/en-us/HT214106
Restart Required: Yes
Instructions:
1. Open System Settings > General > Software Update. 2. Install macOS Sonoma 14.5 update. 3. Restart the system when prompted.
🔧 Temporary Workarounds
Application Whitelisting
allRestrict execution of untrusted applications to reduce attack surface
Enhanced Monitoring
allMonitor for suspicious process creation and privilege escalation attempts
🧯 If You Can't Patch
- Implement strict application control policies to prevent execution of untrusted code
- Isolate vulnerable systems from critical network segments and monitor for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check macOS version: if running Sonoma and version is less than 14.5, system is vulnerable.Check Version:
sw_versVerify Fix Applied:
Verify macOS version is 14.5 or later in System Settings > General > About.📡 Detection & Monitoring
Log Indicators:
- Unexpected kernel extensions loading
- Processes running with unexpected root privileges
- Failed authorization attempts followed by successful privilege escalation
Network Indicators:
- Unusual outbound connections from privileged processes
- Lateral movement attempts from previously compromised hosts
SIEM Query:
source="macos" AND (event_type="process_creation" AND parent_process="kernel_task") OR (event_type="privilege_escalation")