CVE-2024-44131

5.5 MEDIUM

📋 TL;DR

This vulnerability allows malicious apps to bypass symlink validation and access sensitive user data on Apple devices. It affects iOS, iPadOS, and macOS systems before specific updates. Users with affected Apple devices are at risk of data exposure.

💻 Affected Systems

Products:
  • iOS
  • iPadOS
  • macOS
Versions: Versions before iOS 18, iPadOS 18, and macOS Sequoia 15
Operating Systems: iOS, iPadOS, macOS
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all default configurations of mentioned Apple operating systems before patched versions.

📦 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

Complete compromise of sensitive user data including personal files, credentials, and private information through malicious app exploitation.

🟠

Likely Case

Targeted data theft by malicious apps that gain unauthorized access to specific sensitive files or directories.

🟢

If Mitigated

Limited data exposure with proper app sandboxing and user permission controls in place.

🌐 Internet-Facing: LOW - Exploitation requires local app installation, not direct internet exposure.
🏢 Internal Only: MEDIUM - Risk exists from malicious apps installed on devices within the environment.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires user to install a malicious app; public disclosure suggests exploit code may be available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: iOS 18, iPadOS 18, macOS Sequoia 15

Vendor Advisory: https://support.apple.com/en-us/121238

Restart Required: Yes

Instructions:

1. Open Settings app. 2. Go to General > Software Update. 3. Download and install iOS 18/iPadOS 18/macOS Sequoia 15. 4. Restart device after installation.

🔧 Temporary Workarounds

Restrict App Installation

all

Only allow app installation from trusted sources like Apple App Store

Settings > General > Device Management > App Installation > Allow Apps From: App Store Only

🧯 If You Can't Patch

  • Implement strict app installation policies allowing only verified applications
  • Use mobile device management (MDM) to control app installation and monitor for suspicious activity

🔍 How to Verify

Check if Vulnerable:

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

Check Version:

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

Verify Fix Applied:

Verify version shows iOS 18, iPadOS 18, or macOS Sequoia 15 or later

📡 Detection & Monitoring

Log Indicators:

  • Unusual file access patterns by apps
  • Symlink creation attempts in restricted directories

Network Indicators:

  • Not network exploitable - local vulnerability only

SIEM Query:

Search for process access to sensitive directories or symlink creation events in system logs

🔗 References

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