CVE-2024-44256
📋 TL;DR
This CVE describes a sandbox escape vulnerability in macOS that allows malicious applications to break out of their security confinement. The vulnerability affects macOS Ventura and Sonoma systems, potentially enabling unauthorized access to system resources or other applications' data.
💻 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 →⚠️ Risk & Real-World Impact
Worst Case
A malicious app could gain full system access, install persistent malware, access sensitive data from other applications, or compromise the entire operating system.
Likely Case
Malicious apps could access restricted system resources, read/write files outside their sandbox, or perform unauthorized actions with elevated privileges.
If Mitigated
With proper app vetting and security controls, the risk is limited to untrusted applications that manage to bypass Apple's app review process.
🎯 Exploit Status
Exploitation requires a malicious application to be installed and executed on the target system. The vulnerability involves improper input sanitization in sandbox mechanisms.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version that fixes this: macOS Ventura 13.7.1, macOS Sonoma 14.7.1
Vendor Advisory: URL to vendor advisory if known: https://support.apple.com/en-us/121568
Restart Required: Yes
Instructions:
Step-by-step patching instructions: 1. Open System Settings > General > Software Update. 2. Click 'Update Now' if updates are available. 3. Follow on-screen instructions to download and install. 4. Restart your Mac when prompted.
🔧 Temporary Workarounds
Restrict App Installation
allWhat this does: Limit app installation to App Store only to reduce risk from untrusted applications
sudo spctl --master-enable
sudo spctl --enable --label "Mac App Store"
Gatekeeper Enforcement
allWhat this does: Ensure Gatekeeper is enabled to verify app signatures
sudo spctl --status
🧯 If You Can't Patch
- Risk reduction step 1: Implement application allowlisting to only permit trusted, verified applications
- Risk reduction step 2: Use endpoint detection and response (EDR) solutions to monitor for sandbox escape attempts
🔍 How to Verify
Check if Vulnerable:
Commands or steps to check if vulnerable: Check macOS version in System Settings > General > About. If version is Ventura < 13.7.1 or Sonoma < 14.7.1, system is vulnerable.Check Version:
Command to check current version: sw_vers -productVersionVerify Fix Applied:
Commands or steps to verify the fix worked: Verify macOS version is Ventura 13.7.1 or Sonoma 14.7.1 or later in System Settings > General > About.📡 Detection & Monitoring
Log Indicators:
- What to look for in logs: Unusual sandbox violation logs, unexpected process spawning, or privilege escalation attempts in system logs
Network Indicators:
- Network-based detection: Unusual outbound connections from applications that should be sandboxed
SIEM Query:
Example SIEM/detection query if applicable: process.parent.name="sandboxed_app" AND process.name="system_process" OR event.action="sandbox_violation"