CVE-2024-44151

5.5 MEDIUM

📋 TL;DR

This CVE describes a macOS permissions vulnerability where applications can bypass file system protections to modify restricted areas. It affects macOS Ventura, Sonoma, and Sequoia versions before the patched releases. The issue allows unauthorized file system modifications that could compromise system integrity.

💻 Affected Systems

Products:
  • macOS
Versions: Versions before macOS Ventura 13.7, macOS Sonoma 14.7, macOS Sequoia 15
Operating Systems: macOS
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all default macOS installations of vulnerable versions. Requires application execution privilege.

📦 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 →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Malicious app could modify critical system files, install persistent malware, or tamper with security configurations leading to full system compromise.

🟠

Likely Case

Malware or compromised applications could modify user data, install unwanted software, or bypass security controls.

🟢

If Mitigated

With proper app vetting and security controls, impact limited to isolated file modifications within sandboxed environments.

🌐 Internet-Facing: LOW - Requires local application execution, not directly exploitable over network.
🏢 Internal Only: MEDIUM - Requires user to install/run malicious application, but could be exploited through social engineering or compromised legitimate apps.

🎯 Exploit Status

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

Exploitation requires user to run a malicious application. No public exploit code identified in references.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Ventura 13.7, macOS Sonoma 14.7, macOS Sequoia 15

Vendor Advisory: https://support.apple.com/en-us/121234

Restart Required: Yes

Instructions:

1. Open System Settings > General > Software Update. 2. Install available updates. 3. Restart when prompted.

🔧 Temporary Workarounds

Application Restriction

all

Restrict application installations to App Store and identified developers only

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

File System Monitoring

all

Monitor critical system directories for unauthorized modifications

sudo fswatch /System/Library /usr/local /Library

🧯 If You Can't Patch

  • Implement application allowlisting to prevent unauthorized app execution
  • Enable full disk encryption and regular integrity checks of system files

🔍 How to Verify

Check if Vulnerable:

Check macOS version: if running Ventura <13.7, Sonoma <14.7, or Sequoia <15, system is vulnerable.

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version shows Ventura 13.7, Sonoma 14.7, or Sequoia 15 or later.

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized file modifications in /System, /Library, or protected directories in Unified Logs
  • Application execution logs showing unexpected process activity

Network Indicators:

  • Unusual outbound connections from applications with file system access

SIEM Query:

process where (parent_process_name contains "install" or parent_process_name contains "app") and (file_path contains "/System/" or file_path contains "/Library/")

🔗 References

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