CVE-2023-38616
📋 TL;DR
A race condition vulnerability in macOS allows malicious applications to execute arbitrary code with kernel privileges, potentially gaining full system control. This affects macOS systems before Ventura 13.5.
💻 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 attackers to install persistent malware, steal all data, or disable security controls.
Likely Case
Privilege escalation from user-level applications to kernel privileges, enabling further system exploitation.
If Mitigated
Limited impact if proper application sandboxing and least privilege principles are enforced.
🎯 Exploit Status
Race conditions require precise timing and local access, making exploitation challenging but possible for skilled attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Ventura 13.5
Vendor Advisory: https://support.apple.com/en-us/HT213843
Restart Required: Yes
Instructions:
1. Open System Settings 2. Click General 3. Click Software Update 4. Install macOS Ventura 13.5 or later 5. Restart when prompted
🔧 Temporary Workarounds
Restrict application execution
allLimit execution of untrusted applications through Gatekeeper and application whitelisting
sudo spctl --master-enable
sudo spctl --status
🧯 If You Can't Patch
- Implement strict application control policies to prevent execution of untrusted software
- Enforce least privilege principles and monitor for suspicious kernel activity
🔍 How to Verify
Check if Vulnerable:
Check macOS version: if before Ventura 13.5, system is vulnerableCheck Version:
sw_versVerify Fix Applied:
Verify macOS version is 13.5 or later📡 Detection & Monitoring
Log Indicators:
- Unexpected kernel extensions loading
- Suspicious privilege escalation attempts in system logs
Network Indicators:
- None - local exploitation only
SIEM Query:
macOS kernel extension monitoring and privilege escalation detection rules