CVE-2023-42961
📋 TL;DR
This vulnerability allows a sandboxed process to bypass sandbox restrictions through a path handling issue. It affects Apple iOS, iPadOS, and macOS users running vulnerable versions. The issue could enable malicious apps to access restricted resources.
💻 Affected Systems
- iOS
- iPadOS
- macOS
📦 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 →⚠️ Risk & Real-World Impact
Worst Case
A malicious app could escape sandbox restrictions and access sensitive user data, system files, or perform unauthorized actions with elevated privileges.
Likely Case
A malicious app could access files or resources outside its intended sandbox boundaries, potentially compromising user privacy or system integrity.
If Mitigated
With proper app vetting and security controls, the risk is limited to apps that have already passed through security checks but contain malicious code.
🎯 Exploit Status
Exploitation requires a malicious app to be installed and executed. No public exploit code has been disclosed as of the advisory date.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: iOS 17, iPadOS 17, iOS 16.7, iPadOS 16.7, macOS Sonoma 14, macOS Ventura 13.6, macOS Monterey 12.7
Vendor Advisory: https://support.apple.com/en-us/120328
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 installations
allOnly install apps from trusted sources like the official App Store
Enable app review
allReview app permissions and only grant necessary access
🧯 If You Can't Patch
- Isolate affected devices from sensitive networks and data
- Implement strict app installation policies and monitoring
🔍 How to Verify
Check if Vulnerable:
Check device version in Settings > General > About > Software VersionCheck Version:
On macOS: sw_vers; On iOS/iPadOS: Check Settings > General > About > Software VersionVerify Fix Applied:
Verify the version matches or exceeds the patched versions listed in the fix section📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns from sandboxed apps
- App attempting to access restricted paths
Network Indicators:
- Not network exploitable - local vulnerability only
SIEM Query:
Not applicable - local OS vulnerability without network indicators