CVE-2024-40825
📋 TL;DR
This vulnerability allows malicious applications with root privileges to modify system files on affected Apple operating systems. It affects visionOS and macOS systems running vulnerable versions. The issue was addressed through improved security checks in updated releases.
💻 Affected Systems
- visionOS
- 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 →⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through modification of critical system files, potentially leading to persistent malware installation, data theft, or system instability.
Likely Case
Limited system file modification by already-privileged malicious applications, potentially affecting system integrity or enabling further privilege escalation.
If Mitigated
Minimal impact if proper application sandboxing and privilege separation are enforced, as root access is required for exploitation.
🎯 Exploit Status
Exploitation requires root privileges and a malicious application; not trivial but feasible for determined attackers with appropriate access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: visionOS 2.0, macOS Sequoia 15
Vendor Advisory: https://support.apple.com/en-us/121238
Restart Required: Yes
Instructions:
1. Open System Settings 2. Navigate to General > Software Update 3. Install visionOS 2.0 or macOS Sequoia 15 4. Restart the system when prompted
🔧 Temporary Workarounds
Restrict root access
allLimit applications and users with root privileges to reduce attack surface
Application allowlisting
allOnly allow trusted applications to run with elevated privileges
🧯 If You Can't Patch
- Implement strict application control policies to prevent unauthorized applications from running with elevated privileges
- Monitor for unusual system file modifications using file integrity monitoring tools
🔍 How to Verify
Check if Vulnerable:
Check system version: visionOS versions below 2.0 or macOS versions below Sequoia 15 are vulnerableCheck Version:
sw_vers (macOS) or check About section in Settings (visionOS)Verify Fix Applied:
Verify system is running visionOS 2.0 or macOS Sequoia 15 or later📡 Detection & Monitoring
Log Indicators:
- Unexpected system file modifications by applications
- Applications running with root privileges modifying protected files
Network Indicators:
- No direct network indicators as this is a local privilege escalation vulnerability
SIEM Query:
Process execution with root privileges AND file modification events in protected system directories