CVE-2024-38052

7.8 HIGH

📋 TL;DR

This vulnerability in the Kernel Streaming WOW Thunk Service Driver allows attackers to escalate privileges on affected Windows systems. An authenticated attacker could exploit this to gain SYSTEM-level privileges and take full control of the system. This affects Windows systems with the vulnerable driver component.

💻 Affected Systems

Products:
  • Microsoft Windows
Versions: Specific affected versions would be detailed in Microsoft's advisory
Operating Systems: Windows 10, Windows 11, Windows Server 2016/2019/2022
Default Config Vulnerable: ⚠️ Yes
Notes: Requires the Kernel Streaming WOW Thunk Service Driver component to be present and accessible.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with SYSTEM privileges, enabling installation of malware, data theft, lateral movement, and persistence.

🟠

Likely Case

Local privilege escalation allowing attackers to bypass security controls, install backdoors, or access restricted resources.

🟢

If Mitigated

Limited impact if proper patch management, least privilege principles, and endpoint protection are implemented.

🌐 Internet-Facing: LOW - Requires local access or ability to execute code on the target system first.
🏢 Internal Only: HIGH - Once an attacker gains initial access to a system, they can exploit this to escalate privileges and move laterally.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Requires local access and ability to execute code on the target system. Typically used as part of a multi-stage attack chain.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check Microsoft's July 2024 Patch Tuesday updates or later

Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38052

Restart Required: Yes

Instructions:

1. Apply the latest Windows security updates from Microsoft. 2. Use Windows Update or WSUS to deploy patches. 3. Restart systems as required after patch installation.

🔧 Temporary Workarounds

Restrict driver loading

windows

Configure Windows to only load signed drivers or restrict driver loading policies

Use Group Policy: Computer Configuration > Windows Settings > Security Settings > Local Policies > Security Options > Devices: Unsigned driver installation behavior

🧯 If You Can't Patch

  • Implement strict least privilege principles to limit initial access opportunities
  • Deploy endpoint detection and response (EDR) solutions to detect privilege escalation attempts

🔍 How to Verify

Check if Vulnerable:

Check Windows Update history for July 2024 patches or run: wmic qfe list | findstr KB

Check Version:

systeminfo | findstr /B /C:"OS Name" /C:"OS Version"

Verify Fix Applied:

Verify the specific KB patch for CVE-2024-38052 is installed via Windows Update or patch management system

📡 Detection & Monitoring

Log Indicators:

  • Event ID 4697: Service installation in Windows Security log
  • Suspicious driver loading events
  • Privilege escalation attempts in security logs

Network Indicators:

  • Unusual outbound connections following local privilege escalation

SIEM Query:

EventID=4697 OR (EventID=4688 AND NewProcessName contains "powershell" OR "cmd") | where ParentProcessName contains services.exe

🔗 References

📤 Share & Export