CVE-2024-44218

7.8 HIGH

📋 TL;DR

This vulnerability allows an attacker to cause heap corruption by tricking a user into processing a maliciously crafted file. Successful exploitation could lead to arbitrary code execution or application crashes. It affects Apple iOS, iPadOS, and macOS users running vulnerable versions.

💻 Affected Systems

Products:
  • iOS
  • iPadOS
  • macOS
Versions: Versions prior to iOS 17.7.1, iPadOS 17.7.1, macOS Sonoma 14.7.1, iOS 18.1, and iPadOS 18.1
Operating Systems: iOS, iPadOS, macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All default configurations are vulnerable; exploitation requires user interaction to process a malicious file.

📦 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

Remote code execution with the privileges of the user processing the malicious file, potentially leading to full system compromise.

🟠

Likely Case

Application crash or denial of service when processing the malicious file, with potential for limited code execution.

🟢

If Mitigated

No impact if patched; otherwise, application crashes with minimal data loss if proper sandboxing and privilege separation are in place.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires user interaction (processing a malicious file); no public proof-of-concept has been disclosed as of the provided references.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: iOS 17.7.1, iPadOS 17.7.1, macOS Sonoma 14.7.1, iOS 18.1, iPadOS 18.1

Vendor Advisory: https://support.apple.com/en-us/121563

Restart Required: Yes

Instructions:

1. Go to Settings > General > Software Update on iOS/iPadOS or System Settings > General > Software Update on macOS. 2. Download and install the latest available update. 3. Restart the device after installation completes.

🔧 Temporary Workarounds

Avoid Unknown Files

all

Do not open or process files from untrusted sources.

🧯 If You Can't Patch

  • Restrict file processing to trusted sources only.
  • Implement application sandboxing and least privilege principles to limit potential damage.

🔍 How to Verify

Check if Vulnerable:

Check the current OS version against the patched versions listed in the fix_official section.

Check Version:

On iOS/iPadOS: Settings > General > About > Version. On macOS: System Settings > General > About > macOS version.

Verify Fix Applied:

Confirm the OS version matches or exceeds the patched versions after update.

📡 Detection & Monitoring

Log Indicators:

  • Application crashes related to file processing, unexpected memory access errors in system logs.

Network Indicators:

  • Unusual file downloads from untrusted sources, though exploitation is local.

SIEM Query:

Search for application crash logs (e.g., 'panic', 'segmentation fault') correlated with file processing events.

🔗 References

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