CVE-2024-38185
📋 TL;DR
This vulnerability allows an authenticated attacker to execute arbitrary code with SYSTEM privileges by exploiting a flaw in the Windows kernel-mode driver. It affects Windows systems where an attacker has local access and can run low-privileged code. Successful exploitation leads to complete system compromise.
💻 Affected Systems
- Microsoft Windows
📦 What is this software?
Windows 10 1607 by Microsoft
Windows 10 1809 by Microsoft
Windows 10 21h2 by Microsoft
Windows 10 22h2 by Microsoft
Windows 11 21h2 by Microsoft
Windows 11 22h2 by Microsoft
Windows 11 23h2 by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
Attacker gains full SYSTEM privileges, installs persistent malware, steals credentials, and pivots to other systems on the network.
Likely Case
Local attacker escalates privileges from standard user to SYSTEM, enabling installation of backdoors, disabling security controls, or accessing protected data.
If Mitigated
With proper endpoint protection and least privilege enforcement, exploitation attempts are detected and blocked before privilege escalation occurs.
🎯 Exploit Status
Exploitation requires local authenticated access and knowledge of driver internals. No public exploit code available at disclosure.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: July 2024 security updates (KB5040442 for Windows 10, KB5040437 for Windows 11, etc.)
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38185
Restart Required: Yes
Instructions:
1. Open Windows Update Settings. 2. Click 'Check for updates'. 3. Install July 2024 security updates. 4. Restart system when prompted.
🔧 Temporary Workarounds
Restrict driver loading
windowsConfigure Windows to only load signed drivers with valid certificates
bcdedit /set nointegritychecks off
bcdedit /set testsigning off
Enable Windows Defender Application Control
windowsUse WDAC policies to restrict which drivers can load
🧯 If You Can't Patch
- Implement strict least privilege - ensure users run with minimal necessary permissions
- Deploy endpoint detection and response (EDR) solutions with kernel-mode driver monitoring
🔍 How to Verify
Check if Vulnerable:
Check Windows version and if July 2024 security updates are installed via 'winver' or 'systeminfo'Check Version:
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"Verify Fix Applied:
Verify KB5040442 (Windows 10) or KB5040437 (Windows 11) is installed in Installed Updates📡 Detection & Monitoring
Log Indicators:
- Event ID 4697: Service installed in Security log
- Suspicious driver loading events
- Unexpected privilege escalation attempts
Network Indicators:
- None - local exploitation only
SIEM Query:
EventID=4697 OR (EventID=4688 AND NewProcessName LIKE "%\system32\drivers\%")