CVE-2023-32426

7.8 HIGH

📋 TL;DR

This CVE describes a privilege escalation vulnerability in macOS where a malicious application could exploit a logic issue to gain root privileges. It affects macOS Ventura versions before 13.3. Users running unpatched macOS Ventura systems are at risk.

💻 Affected Systems

Products:
  • macOS
Versions: macOS Ventura versions before 13.3
Operating Systems: macOS
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects macOS Ventura. Older macOS versions and other Apple operating systems are not affected.

📦 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 attackers to install persistent malware, access all user data, modify system files, and bypass security controls.

🟠

Likely Case

Malicious applications exploiting this to gain elevated privileges for data theft, surveillance, or installing additional payloads while evading detection.

🟢

If Mitigated

Limited impact with proper application sandboxing, least privilege principles, and security monitoring in place to detect privilege escalation attempts.

🌐 Internet-Facing: LOW with brief explanation
🏢 Internal Only: MEDIUM with brief explanation

🎯 Exploit Status

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

Requires local application execution. Apple has not disclosed technical details to prevent exploitation.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Ventura 13.3

Vendor Advisory: https://support.apple.com/en-us/HT213670

Restart Required: Yes

Instructions:

1. Open System Settings 2. Click General 3. Click Software Update 4. Install macOS Ventura 13.3 or later 5. Restart when prompted

🔧 Temporary Workarounds

Application Restriction

all

Restrict installation and execution of untrusted applications

sudo spctl --master-enable
sudo spctl --enable --label "Developer ID"

🧯 If You Can't Patch

  • Implement strict application control policies to prevent execution of untrusted applications
  • Enable full disk encryption and monitor for privilege escalation attempts using security tools

🔍 How to Verify

Check if Vulnerable:

Check macOS version in System Settings > General > About. If version is earlier than 13.3, system is vulnerable.

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version is 13.3 or later in System Settings > General > About.

📡 Detection & Monitoring

Log Indicators:

  • Unexpected privilege escalation events in system logs
  • Applications requesting root privileges unexpectedly

Network Indicators:

  • Unusual outbound connections from system processes

SIEM Query:

source="macos_system_logs" event_type="privilege_escalation" OR process_name="sudo" OR "AuthorizationExecuteWithPrivileges"

🔗 References

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