CVE-2024-44231
📋 TL;DR
This vulnerability allows an attacker with physical access to bypass the macOS login window during software updates, potentially gaining unauthorized access to the system. It affects macOS systems running versions before Sequoia 15.1. The risk is primarily to organizations with shared or unattended Mac devices.
💻 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 gains full access to a logged-out Mac, potentially accessing sensitive data, installing malware, or compromising user accounts.
Likely Case
Unauthorized access to a temporarily unattended Mac during software updates, leading to data theft or system compromise.
If Mitigated
Minimal impact if physical security controls prevent unauthorized access to devices during maintenance windows.
🎯 Exploit Status
Exploitation requires physical access to the target Mac during a specific software update state.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Sequoia 15.1
Vendor Advisory: https://support.apple.com/en-us/121564
Restart Required: Yes
Instructions:
1. Open System Settings. 2. Click General > Software Update. 3. Install macOS Sequoia 15.1 or later. 4. Restart when prompted.
🔧 Temporary Workarounds
Disable automatic software updates during unattended periods
allPrevent software updates from occurring when devices might be unattended or accessible to unauthorized personnel.
sudo softwareupdate --schedule off
Enforce physical security during maintenance
allEnsure Mac devices are physically secured or monitored during software update windows.
🧯 If You Can't Patch
- Implement strict physical access controls to prevent unauthorized personnel from approaching devices during updates.
- Schedule software updates only when devices are attended by authorized personnel in secure locations.
🔍 How to Verify
Check if Vulnerable:
Check macOS version: if running any version before Sequoia 15.1, the system is vulnerable.Check Version:
sw_versVerify Fix Applied:
Confirm macOS version is 15.1 or later and test login window behavior during simulated update.📡 Detection & Monitoring
Log Indicators:
- Unexpected login events during software update windows
- Multiple failed login attempts followed by successful login during updates
Network Indicators:
- Unusual network activity from Macs during update periods
SIEM Query:
source="macos" event_type="authentication" AND (software_update="true" OR process="softwareupdated") AND result="success"