CVE-2024-40783
📋 TL;DR
This macOS vulnerability allows malicious applications to bypass Privacy preferences and access restricted data containers. It affects macOS Monterey, Ventura, and Sonoma users who haven't applied security updates. The issue involves improper access restrictions that could be exploited by locally installed malicious software.
💻 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
Malicious application gains unauthorized access to sensitive user data protected by Privacy preferences, potentially exposing contacts, photos, location data, or other protected information.
Likely Case
Malware or compromised applications bypass privacy controls to access data they shouldn't have permission to view, leading to data exfiltration or privacy violations.
If Mitigated
With proper patching, the vulnerability is eliminated; with application sandboxing and user vigilance, risk is significantly reduced even before patching.
🎯 Exploit Status
Requires user to install and run a malicious application. No public exploit code has been disclosed in the referenced advisories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Sonoma 14.6, macOS Monterey 12.7.6, macOS Ventura 13.6.8
Vendor Advisory: https://support.apple.com/en-us/HT214118
Restart Required: Yes
Instructions:
1. Open System Settings > General > Software Update. 2. Install available updates. 3. Restart your Mac when prompted. For enterprise: Deploy updates via MDM or Apple Business/School Manager.
🔧 Temporary Workarounds
Application Restriction
allOnly install applications from trusted sources (App Store or identified developers) and be cautious of unknown applications.
Privacy Settings Review
allRegularly review and audit Privacy settings in System Settings to ensure applications only have necessary permissions.
🧯 If You Can't Patch
- Implement application allowlisting to prevent unauthorized applications from running
- Educate users about risks of installing untrusted applications and implement strict software installation policies
🔍 How to Verify
Check if Vulnerable:
Check macOS version: If running Monterey 12.0-12.7.5, Ventura 13.0-13.6.7, or Sonoma 14.0-14.5, system is vulnerable.Check Version:
sw_versVerify Fix Applied:
Verify macOS version is Monterey 12.7.6 or later, Ventura 13.6.8 or later, or Sonoma 14.6 or later.📡 Detection & Monitoring
Log Indicators:
- Unusual application behavior accessing protected resources
- Privacy permission alerts for unexpected applications
- Console logs showing access to protected data containers
Network Indicators:
- Unexpected outbound data transfers from applications that shouldn't have access to sensitive data
SIEM Query:
source="macos*" AND (event_category="privacy_violation" OR message="*bypass*privacy*" OR process_accessing="*/Containers/*")🔗 References
- http://seclists.org/fulldisclosure/2024/Jul/18
- http://seclists.org/fulldisclosure/2024/Jul/19
- http://seclists.org/fulldisclosure/2024/Jul/20
- https://support.apple.com/en-us/HT214118
- https://support.apple.com/en-us/HT214119
- https://support.apple.com/en-us/HT214120
- http://seclists.org/fulldisclosure/2024/Jul/18
- http://seclists.org/fulldisclosure/2024/Jul/19
- http://seclists.org/fulldisclosure/2024/Jul/20
- https://support.apple.com/en-us/HT214118
- https://support.apple.com/en-us/HT214119
- https://support.apple.com/en-us/HT214120
- https://support.apple.com/kb/HT214118
- https://support.apple.com/kb/HT214119
- https://support.apple.com/kb/HT214120
