CVE-2023-38615

7.8 HIGH

📋 TL;DR

This is a macOS kernel privilege escalation vulnerability that allows malicious applications to execute arbitrary code with kernel-level privileges. It affects macOS systems prior to Sonoma 14, potentially enabling complete system compromise.

💻 Affected Systems

Products:
  • macOS
Versions: Versions prior to macOS Sonoma 14
Operating Systems: macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All default macOS configurations are vulnerable. Requires local access or malicious application execution.

📦 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...

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⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system takeover with kernel privileges, allowing installation of persistent malware, data theft, and disabling of security controls.

🟠

Likely Case

Local privilege escalation where a user-level application gains kernel privileges to bypass security restrictions and access sensitive system resources.

🟢

If Mitigated

Limited impact if systems are already patched or isolated, with proper application sandboxing and least privilege principles in place.

🌐 Internet-Facing: LOW
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Requires local application execution. No public exploit code available at time of analysis.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Sonoma 14

Vendor Advisory: https://support.apple.com/en-us/HT213940

Restart Required: Yes

Instructions:

1. Open System Settings 2. Click General 3. Click Software Update 4. Install macOS Sonoma 14 or later 5. Restart when prompted

🔧 Temporary Workarounds

Application Sandboxing Enforcement

all

Enforce strict application sandboxing policies to limit potential damage from malicious applications

🧯 If You Can't Patch

  • Implement strict application allowlisting to prevent unauthorized applications from executing
  • Isolate vulnerable systems from critical networks and implement network segmentation

🔍 How to Verify

Check if Vulnerable:

Check macOS version: if earlier than Sonoma 14, system is vulnerable

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version is Sonoma 14 or later via 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
  • Suspicious network activity following local application execution

SIEM Query:

source="macos_system_logs" AND (event="kernel_extension" OR event="privilege_escalation")

🔗 References

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