Microsoft Windows 11 23h2 · CLFS.sys Elevation of Privilege
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Mentioned vulnerabilities
Rated by Threat Radar
Data as of 11 Jun 2025, 21:07 UTC
What to do
AI-suggested
1. Immediate deployment of any available Microsoft security updates or patches addressing CVE-2024-49138 once released. 2. Implement strict local access controls and limit administrative privileges to reduce the risk of local exploitation. 3. Employ application whitelisting and endpoint detection and response (EDR) solutions capable of detecting unusual kernel memory manipulation or privilege escalation attempts. 4. Monitor creation and modification of Common Log File System (CLFS) containers and unusual file system activity in directories like C:\temp or other temporary folders. 5. Restrict the ability to execute untrusted code locally, including disabling or restricting use of developer tools and compilers on production systems. 6. Use Windows Defender Exploit Guard or similar technologies to harden kernel-mode driver interactions. 7. Conduct regular audits of user privileges and active processes to detect anomalies indicative of token swapping or privilege escalation. 8. Employ network segmentation to limit lateral movement from compromised endpoints. 9. Educate users on phishing and social engineering risks to prevent initial compromise that could lead to local code execution. 10. Prepare incident response plans specifically addressing kernel-level compromises and privilege escalations.
Description
Microsoft Windows 11 23h2 - CLFS.sys Elevation of Privilege
Indicators of compromise
Exploit source code
# Exploit Title: Microsoft Windows 11 23h2 - CLFS.sys Elevation of Privilege
# Date: 2025-04-16
# Exploit Author: Milad Karimi (Ex3ptionaL)
# Contact: miladgrayhat@gmail.com
# Zone-H: www.zone-h.org/archive/notifier=Ex3ptionaL
# MiRROR-H: https://mirror-h.org/search/hacker/49626/
# CVE: CVE-2024-49138
#include <iostream>
#include <Windows.h>
#include <clfsw32.h>
#include <format>
#include <psapi.h>
#include <iostream>
#include <fstream>
#include <iomanip>
#include <vector>
#include <cstdint>
…