CVE-2024-54557
📋 TL;DR
This CVE describes a logic flaw in macOS that allows attackers to bypass file system protections and access restricted areas. It affects macOS Ventura, Sonoma, and Sequoia users who haven't applied security updates. The vulnerability could lead to unauthorized data access or system compromise.
💻 Affected Systems
- macOS
📦 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 gains full access to protected system files, potentially installing persistent malware, stealing sensitive data, or compromising the entire operating system.
Likely Case
Local attackers or malicious applications bypass sandbox restrictions to access user data, system files, or other protected resources they shouldn't have permission to view.
If Mitigated
With proper access controls and least privilege principles, impact is limited to specific protected areas rather than full system compromise.
🎯 Exploit Status
Exploitation requires local access or ability to execute code on the target system. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Ventura 13.7.2, macOS Sonoma 14.7.2, macOS Sequoia 15.2
Vendor Advisory: https://support.apple.com/en-us/121839
Restart Required: Yes
Instructions:
1. Open System Settings 2. Click General 3. Click Software Update 4. Install available updates 5. Restart when prompted
🔧 Temporary Workarounds
Restrict Local Access
allLimit physical and remote access to vulnerable systems to reduce attack surface
Application Sandboxing Enforcement
macOSEnsure all third-party applications run with appropriate sandbox restrictions
🧯 If You Can't Patch
- Implement strict access controls and limit user privileges
- Monitor for unusual file access patterns and unauthorized system changes
🔍 How to Verify
Check if Vulnerable:
Check macOS version in System Settings > General > About. If version is Ventura <13.7.2, Sonoma <14.7.2, or Sequoia <15.2, system is vulnerable.Check Version:
sw_versVerify Fix Applied:
Verify macOS version shows Ventura 13.7.2, Sonoma 14.7.2, or Sequoia 15.2 or higher in System Settings > General > About.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns in protected directories
- Failed authorization attempts for protected resources
- Unexpected process accessing system files
Network Indicators:
- Not applicable - local vulnerability
SIEM Query:
source="macos" AND (event_type="file_access" AND path CONTAINS "/System/" OR path CONTAINS "/private/") AND user NOT IN ["root", "_security"]