CVE-2024-54527
📋 TL;DR
This vulnerability allows applications to access sensitive user data on affected Apple devices. It affects users running outdated versions of watchOS, tvOS, macOS, iOS, and iPadOS. The issue was addressed through improved security checks in Apple's latest updates.
💻 Affected Systems
- Apple Watch
- Apple TV
- Mac
- iPhone
- iPad
📦 What is this software?
Ipados by Apple
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 →Tvos by Apple
Watchos by Apple
⚠️ Risk & Real-World Impact
Worst Case
Malicious applications could access sensitive personal data including credentials, financial information, private communications, or location data without user consent.
Likely Case
Applications with legitimate functionality could inadvertently access data they shouldn't, or malicious apps could harvest limited sensitive information.
If Mitigated
With proper app sandboxing and security controls, impact would be limited to data accessible within the app's normal permissions.
🎯 Exploit Status
Exploitation requires a malicious application to be installed on the target device. No public exploit code has been disclosed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: watchOS 11.2, tvOS 18.2, macOS Sequoia 15.2, iOS 18.2 and iPadOS 18.2, macOS Ventura 13.7.2, macOS Sonoma 14.7.2
Vendor Advisory: https://support.apple.com/en-us/121837
Restart Required: Yes
Instructions:
1. Open Settings app. 2. Go to General > Software Update. 3. Download and install the latest available update. 4. Restart device when prompted.
🔧 Temporary Workarounds
Restrict App Installation
allOnly allow installation of apps from trusted sources like the App Store
Settings > General > Device Management (for enterprise) or Settings > Screen Time > Content & Privacy Restrictions > iTunes & App Store Purchases
🧯 If You Can't Patch
- Implement strict application allow-listing policies to prevent installation of untrusted applications
- Enable enhanced privacy controls and limit app permissions to minimum required functionality
🔍 How to Verify
Check if Vulnerable:
Check current OS version against affected versions list. If running older than patched versions, device is vulnerable.Check Version:
Settings > General > About > Software Version (iOS/iPadOS/watchOS) or Apple menu > About This Mac (macOS) or Settings > General > About (tvOS)Verify Fix Applied:
Verify OS version matches or exceeds the patched versions listed in the fix information.📡 Detection & Monitoring
Log Indicators:
- Unusual application data access patterns
- Applications requesting permissions beyond their stated functionality
Network Indicators:
- Unusual data exfiltration from applications to external servers
SIEM Query:
Search for applications accessing sensitive data stores or system APIs without clear business need🔗 References
- https://support.apple.com/en-us/121837
- https://support.apple.com/en-us/121839
- https://support.apple.com/en-us/121840
- https://support.apple.com/en-us/121842
- https://support.apple.com/en-us/121843
- https://support.apple.com/en-us/121844
- http://seclists.org/fulldisclosure/2024/Dec/11
- http://seclists.org/fulldisclosure/2024/Dec/5
- http://seclists.org/fulldisclosure/2024/Dec/7
- http://seclists.org/fulldisclosure/2024/Dec/9
