CVE-2024-27829

7.8 HIGH

📋 TL;DR

This is a memory handling vulnerability in macOS that allows processing malicious files to cause application crashes or arbitrary code execution. It affects macOS systems before version 14.5. Users who open untrusted files are at risk.

💻 Affected Systems

Products:
  • macOS
Versions: Versions before macOS Sonoma 14.5
Operating Systems: macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All macOS systems before version 14.5 are vulnerable by default when processing files.

📦 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 opening the malicious file, potentially leading to full system compromise.

🟠

Likely Case

Application crashes or denial of service when processing specially crafted files.

🟢

If Mitigated

Limited impact if systems are patched and users avoid opening untrusted files.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires user interaction to open a malicious file. No public exploit code has been disclosed.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Sonoma 14.5

Vendor Advisory: https://support.apple.com/en-us/HT214106

Restart Required: Yes

Instructions:

1. Open System Settings. 2. Click General. 3. Click Software Update. 4. Install macOS Sonoma 14.5 or later. 5. Restart the system when prompted.

🔧 Temporary Workarounds

Avoid Untrusted Files

all

Do not open files from untrusted sources to prevent exploitation.

🧯 If You Can't Patch

  • Restrict user permissions to limit potential damage from code execution.
  • Use application sandboxing or endpoint protection to monitor for suspicious file processing.

🔍 How to Verify

Check if Vulnerable:

Check macOS version in System Settings > General > About. If version is earlier than 14.5, the system is vulnerable.

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version is 14.5 or later in System Settings > General > About.

📡 Detection & Monitoring

Log Indicators:

  • Application crash logs related to file processing
  • Unexpected process terminations in system logs

Network Indicators:

  • Unusual outbound connections from applications after file opening

SIEM Query:

source="macOS" AND (event="crash" OR event="termination") AND process="*" AND file="*"

🔗 References

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