CVE-2024-23294

7.8 HIGH

📋 TL;DR

This vulnerability in macOS allows attackers to execute arbitrary code by processing malicious input. It affects macOS systems before Sonoma 14.4. Users who process untrusted input are at risk of remote code execution.

💻 Affected Systems

Products:
  • macOS
Versions: All versions before macOS Sonoma 14.4
Operating Systems: macOS
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in default macOS installations. Specific vulnerable component not disclosed in public information.

📦 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

Full system compromise with attacker gaining root privileges and persistent access

🟠

Likely Case

Local privilege escalation or remote code execution depending on attack vector

🟢

If Mitigated

Limited impact with proper input validation and sandboxing in place

🌐 Internet-Facing: MEDIUM - Requires processing malicious input but could be exploited through web content or network services
🏢 Internal Only: MEDIUM - Could be exploited via malicious files or internal network traffic

🎯 Exploit Status

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

Apple has not disclosed technical details. The vulnerability allows code execution through malicious input processing.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Sonoma 14.4

Vendor Advisory: https://support.apple.com/en-us/HT214084

Restart Required: Yes

Instructions:

1. Open System Settings 2. Click General 3. Click Software Update 4. Install macOS Sonoma 14.4 or later 5. Restart when prompted

🔧 Temporary Workarounds

Input Validation

all

Implement strict input validation for all user-supplied data

Network Segmentation

all

Isolate vulnerable systems from untrusted networks

🧯 If You Can't Patch

  • Implement application allowlisting to prevent unauthorized code execution
  • Use network segmentation to isolate vulnerable systems from critical assets

🔍 How to Verify

Check if Vulnerable:

Check macOS version in System Settings > General > About. If version is earlier than 14.4, system is vulnerable.

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version is 14.4 or later in System Settings > General > About

📡 Detection & Monitoring

Log Indicators:

  • Unexpected process execution
  • Abnormal system calls
  • Crash reports related to input processing

Network Indicators:

  • Unusual outbound connections from macOS systems
  • Suspicious file transfers to macOS hosts

SIEM Query:

source="macos" AND (event_type="process_execution" AND process_name NOT IN allowed_processes) OR (event_type="crash" AND application="system_process")

🔗 References

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