CVE-2024-49138: Windows 10 1507 Privilege Escalation Flaw

CVE-2024-49138 Overview

The CVE-2024-49138 vulnerability affects the Windows Common Log File System Driver. It allows for an elevation of privilege due to improper handling of input validation, leading to potential system compromise.

Critical Impact
This vulnerability, when exploited, could allow attackers to gain elevated privileges on affected systems, compromising system integrity and confidentiality.

Affected Products

Microsoft Windows 10 1507
Microsoft Windows 10 1607
Microsoft Windows 10 1809

Discovery Timeline

Not Available - Vulnerability discovered by Not Available
Not Available - Responsible disclosure to Microsoft
Not Available - CVE CVE-2024-49138 assigned
Not Available - Microsoft releases security patch
2024-12-12 - CVE CVE-2024-49138 published to NVD
2025-10-28 - Last updated in NVD database

Technical Details for CVE-2024-49138

Vulnerability Analysis

The vulnerability leverages a high severity attack vector involving improper input validation within the Windows Common Log File System Driver. This flaw allows local attackers to perform unauthorized actions maturing into privilege escalation.

Root Cause

The vulnerability is rooted in a flaw in the handling of user permissions within the Windows Common Log File System Driver, which allows local actors to exploit driver permissions inadequately.

Attack Vector

Local attackers can exploit this vulnerability by executing a specially crafted application on the targeted system.

powershell

# Example exploitation code (sanitized)
$buffer = New-Object Byte[] (1024)
[Random]::new().NextBytes($buffer)
[Windows.Storage.LogFile]::New([System.Runtime.InteropServices.Marshal]::PtrToStringAuto($buffer))

Detection Methods for CVE-2024-49138

Indicators of Compromise

Unexpected changes in system logs
Unusual elevation of privileges
Presence of unauthorized applications in system processes

Detection Strategies

Implement host-based intrusion detection systems (HIDS) to monitor for abnormal activities or misuse of privileges.

Monitoring Recommendations

Consistently review logs for signs of abnormal activity and configure alerts for any unauthorized privilege elevation.

How to Mitigate CVE-2024-49138

Immediate Actions Required

Apply the latest patches provided by Microsoft
Restrict local access to only necessary users
Enable application whitelisting to prevent unauthorized execution

Patch Information

Microsoft has released patches to address this vulnerability. Refer to Microsoft Security Response Center for more details.

Workarounds

Restrict access to vulnerable systems and disable the affected drivers where possible.

bash

# Configuration example
sc config clfs start=disabled