CVE-2024-23258
📋 TL;DR
This vulnerability allows attackers to execute arbitrary code by exploiting an out-of-bounds read when processing malicious images. It affects Apple visionOS and macOS systems, potentially enabling remote code execution without user interaction.
💻 Affected Systems
- visionOS
- macOS
📦 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...
Learn more about Macos →⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control over the affected device, potentially leading to data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Arbitrary code execution with the privileges of the user processing the image, potentially leading to malware installation or data exfiltration.
If Mitigated
Limited impact with proper network segmentation, application sandboxing, and least privilege principles in place.
🎯 Exploit Status
Exploitation requires processing a malicious image, which could occur through various attack vectors including web browsing, email attachments, or file downloads.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: visionOS 1.1, macOS Sonoma 14.4
Vendor Advisory: https://support.apple.com/en-us/HT214084
Restart Required: Yes
Instructions:
1. Open System Settings 2. Click General 3. Click Software Update 4. Install available updates 5. Restart when prompted
🔧 Temporary Workarounds
Disable automatic image processing
allConfigure applications to not automatically process or preview image files from untrusted sources
🧯 If You Can't Patch
- Implement network segmentation to isolate vulnerable systems
- Deploy application allowlisting to prevent execution of unauthorized code
🔍 How to Verify
Check if Vulnerable:
Check system version: visionOS < 1.1 or macOS Sonoma < 14.4Check Version:
sw_vers (macOS) or system_profiler SPSoftwareDataType (both)Verify Fix Applied:
Verify system version is visionOS 1.1 or macOS Sonoma 14.4 or later📡 Detection & Monitoring
Log Indicators:
- Unexpected process crashes related to image processing
- Suspicious child processes spawned from image viewers
Network Indicators:
- Unusual outbound connections from image processing applications
SIEM Query:
Process creation events where parent process is an image viewer or editor🔗 References
- http://seclists.org/fulldisclosure/2024/Mar/21
- http://seclists.org/fulldisclosure/2024/Mar/26
- https://support.apple.com/en-us/HT214084
- https://support.apple.com/en-us/HT214087
- http://seclists.org/fulldisclosure/2024/Mar/21
- http://seclists.org/fulldisclosure/2024/Mar/26
- https://support.apple.com/en-us/HT214084
- https://support.apple.com/en-us/HT214087
- https://support.apple.com/kb/HT214084
- https://support.apple.com/kb/HT214087
