CVE-2023-41076

7.3 HIGH

📋 TL;DR

This macOS privilege escalation vulnerability allows malicious applications to gain elevated system privileges without proper authorization. It affects macOS systems prior to version 14, potentially enabling attackers to bypass security controls and execute code with higher permissions than intended.

💻 Affected Systems

Products:
  • macOS
Versions: Versions prior to macOS 14 (Sonoma)
Operating Systems: macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All default macOS configurations prior to version 14 are vulnerable. The vulnerability was in macOS system code that has been removed in the fix.

📦 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 compromise with root-level access, allowing installation of persistent malware, data theft, and lateral movement across the network.

🟠

Likely Case

Local privilege escalation enabling attackers to bypass application sandboxes, access protected system resources, and install additional malicious payloads.

🟢

If Mitigated

Limited impact with proper application whitelisting, least privilege principles, and network segmentation preventing lateral movement.

🌐 Internet-Facing: LOW - Requires local application execution, not directly exploitable over network.
🏢 Internal Only: MEDIUM - Requires user interaction to run malicious application, but could be combined with social engineering or other initial access vectors.

🎯 Exploit Status

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

Requires user to execute a malicious application. Apple has not disclosed technical details, but the CWE-269 classification suggests improper privilege management.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS 14 (Sonoma) and later

Vendor Advisory: https://support.apple.com/en-us/120950

Restart Required: Yes

Instructions:

1. Open System Settings > General > Software Update. 2. Install macOS 14 Sonoma or later. 3. Restart the system when prompted.

🔧 Temporary Workarounds

Application Restriction

all

Restrict installation and execution of untrusted applications using MDM or parental controls

Gatekeeper Enforcement

all

Ensure Gatekeeper is configured to only allow apps from the App Store and identified developers

sudo spctl --master-enable
sudo spctl --status

🧯 If You Can't Patch

  • Implement strict application control policies to prevent execution of untrusted applications
  • Use network segmentation to isolate vulnerable systems and monitor for suspicious privilege escalation attempts

🔍 How to Verify

Check if Vulnerable:

Check macOS version: if earlier than 14.0, the system is vulnerable

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version is 14.0 or later and check that the update was successfully installed

📡 Detection & Monitoring

Log Indicators:

  • Unexpected privilege escalation events in system logs
  • Applications requesting elevated privileges without user interaction
  • Suspicious process creation with elevated permissions

Network Indicators:

  • Unusual outbound connections from system processes
  • Lateral movement attempts from macOS systems

SIEM Query:

source="macos_system_logs" AND (event_type="privilege_escalation" OR process_elevation=true) AND NOT user_interaction=true

🔗 References

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