CVE-2024-23299

8.6 HIGH

📋 TL;DR

This vulnerability allows a malicious macOS application to escape its sandbox restrictions, potentially accessing system resources or other applications' data. It affects macOS systems running versions before the patched releases. Users who run untrusted applications are at risk.

💻 Affected Systems

Products:
  • macOS
Versions: Versions before macOS Sonoma 14.4, macOS Ventura 13.6.5, macOS Monterey 12.7.4
Operating Systems: macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All standard macOS installations with affected versions are vulnerable. The vulnerability is in the operating system's sandbox implementation.

📦 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 →

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 →

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

An attacker could gain full system access, install persistent malware, steal sensitive data from other applications, or compromise the entire operating system.

🟠

Likely Case

A malicious app could access files and resources outside its designated sandbox, potentially stealing user data or performing unauthorized actions.

🟢

If Mitigated

With proper application vetting and security controls, the risk is limited to trusted applications behaving maliciously.

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

🎯 Exploit Status

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

Exploitation requires a user to run a malicious application. Apple has not disclosed technical details, suggesting exploitation may require specific conditions.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Sonoma 14.4, macOS Ventura 13.6.5, macOS Monterey 12.7.4

Vendor Advisory: https://support.apple.com/en-us/HT214083

Restart Required: Yes

Instructions:

1. Open System Settings. 2. Go to General > Software Update. 3. Install the available update for your macOS version. 4. Restart your Mac when prompted.

🔧 Temporary Workarounds

Restrict Application Installation

all

Only install applications from trusted sources like the Mac App Store or identified developers.

Enable Gatekeeper

all

Ensure Gatekeeper is enabled to block apps from unidentified developers.

sudo spctl --master-enable

🧯 If You Can't Patch

  • Only run applications from trusted, verified sources
  • Implement application allowlisting to restrict which apps can execute

🔍 How to Verify

Check if Vulnerable:

Check your macOS version in System Settings > General > About. If it's earlier than the patched versions listed, you are vulnerable.

Check Version:

sw_vers

Verify Fix Applied:

After updating, verify your macOS version matches or exceeds Sonoma 14.4, Ventura 13.6.5, or Monterey 12.7.4.

📡 Detection & Monitoring

Log Indicators:

  • Unusual application behavior, sandbox violation logs in Console.app
  • Unexpected network connections from applications

Network Indicators:

  • Suspicious outbound connections from applications that shouldn't have network access

SIEM Query:

Processes attempting to access system resources outside normal sandbox boundaries

🔗 References

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