CVE-2022-46720

8.6 HIGH

📋 TL;DR

This CVE describes an integer overflow vulnerability in Apple operating systems that allows malicious applications to escape their security sandbox. It affects iOS, iPadOS, and macOS devices running vulnerable versions. Successful exploitation could allow an app to access system resources and data beyond its intended permissions.

💻 Affected Systems

Products:
  • iOS
  • iPadOS
  • macOS
Versions: Versions before iOS 16.2, iPadOS 16.2, and macOS Ventura 13.1
Operating Systems: iOS, iPadOS, macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All devices running affected versions are vulnerable by default. No special configuration required.

📦 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...

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⚠️ Risk & Real-World Impact

🔴

Worst Case

A malicious app could gain full system access, install persistent malware, access sensitive user data, and compromise the entire device.

🟠

Likely Case

Malicious apps from untrusted sources could access files, system resources, or other apps' data they shouldn't have permission to access.

🟢

If Mitigated

With proper app vetting and security controls, the risk is limited to apps that bypass Apple's review process or come from untrusted sources.

🌐 Internet-Facing: LOW - This requires local app execution, not direct internet exploitation.
🏢 Internal Only: MEDIUM - Risk exists if users install untrusted apps or sideload applications.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires a malicious app to be installed and executed on the target device. No public exploit code is known.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: iOS 16.2, iPadOS 16.2, macOS Ventura 13.1

Vendor Advisory: https://support.apple.com/en-us/HT213530

Restart Required: Yes

Instructions:

1. Open Settings app. 2. Go to General > Software Update. 3. Download and install the latest update. 4. Restart device when prompted.

🔧 Temporary Workarounds

Restrict App Installation

all

Only allow installation of apps from the official App Store

Device Management Controls

all

Use MDM solutions to enforce app installation policies and block untrusted sources

🧯 If You Can't Patch

  • Implement strict app installation policies to prevent untrusted apps
  • Use mobile device management (MDM) to restrict app installation sources

🔍 How to Verify

Check if Vulnerable:

Check device version in Settings > General > About > Software Version

Check Version:

Settings > General > About > Software Version (iOS/iPadOS) or About This Mac > macOS Version (macOS)

Verify Fix Applied:

Verify version is iOS 16.2+, iPadOS 16.2+, or macOS Ventura 13.1+

📡 Detection & Monitoring

Log Indicators:

  • Unusual app behavior, sandbox violation logs, unexpected file access patterns

Network Indicators:

  • Unusual outbound connections from apps that shouldn't have network access

SIEM Query:

Search for sandbox violation events or unexpected privilege escalation in app logs

🔗 References

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