CVE-2024-44174
📋 TL;DR
This macOS vulnerability allows attackers to bypass lock screen protections and view restricted content when a device is locked. It affects macOS users who haven't updated to the latest version, potentially exposing sensitive information that should be protected by authentication.
💻 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 →⚠️ Risk & Real-World Impact
Worst Case
An attacker with physical access could view sensitive documents, emails, messages, or other restricted content without authentication, potentially leading to data theft or privacy violations.
Likely Case
Someone with brief physical access to a locked Mac could view notifications, recent documents, or other screen content that should be hidden behind authentication.
If Mitigated
With proper physical security controls and immediate patching, the risk is minimal as exploitation requires physical device access.
🎯 Exploit Status
Exploitation requires physical access to a vulnerable device but no authentication or special tools. The exact method hasn't been publicly disclosed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Sequoia 15
Vendor Advisory: https://support.apple.com/en-us/121238
Restart Required: Yes
Instructions:
1. Open System Settings > General > Software Update. 2. Click 'Update Now' if macOS Sequoia 15 is available. 3. Follow on-screen instructions to download and install. 4. Restart your Mac when prompted.
🔧 Temporary Workarounds
Enable Immediate Screen Lock
allConfigure macOS to lock immediately when display sleeps or screensaver activates
System Settings > Lock Screen > Require password after screen saver begins or display is turned off > set to 'Immediately'
Use Hot Corners to Lock Screen
allConfigure a hot corner to immediately lock the screen when mouse moves to that corner
System Settings > Desktop & Dock > Hot Corners > choose a corner > select 'Lock Screen'
🧯 If You Can't Patch
- Implement strict physical security controls for all macOS devices
- Enforce policies requiring users to manually lock screens (Control+Command+Q) whenever leaving devices unattended
🔍 How to Verify
Check if Vulnerable:
Check macOS version: if version is earlier than 15.0, the system is vulnerableCheck Version:
sw_versVerify Fix Applied:
Verify macOS version is 15.0 or later and test lock screen functionality📡 Detection & Monitoring
Log Indicators:
- Unusual login/logout patterns
- Multiple failed authentication attempts followed by successful screen access
Network Indicators:
- None - this is a local physical access vulnerability
SIEM Query:
Search for authentication events where lock screen bypass might be indicated (platform-specific)