CVE-2024-30089
📋 TL;DR
CVE-2024-30089 is a use-after-free vulnerability in Microsoft Streaming Service that allows local attackers to execute arbitrary code with SYSTEM privileges. This affects Windows systems where the vulnerable service is running. Attackers need local access to exploit this privilege escalation vulnerability.
💻 Affected Systems
- Microsoft Windows
📦 What is this software?
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
Complete system compromise with SYSTEM privileges leading to persistent backdoors, credential theft, and lateral movement across the network.
Likely Case
Local privilege escalation allowing attackers to bypass security controls, install malware, or access sensitive system resources.
If Mitigated
Limited impact with proper patch management and endpoint protection that detects exploitation attempts.
🎯 Exploit Status
Requires local access and knowledge of exploitation techniques. No public exploits available as of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: May 2024 security updates (KB5037771 for Windows 11, KB5037768 for Windows 10, etc.)
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-30089
Restart Required: Yes
Instructions:
1. Apply May 2024 Windows security updates via Windows Update. 2. For enterprise: Deploy through WSUS, SCCM, or Microsoft Intune. 3. Verify update installation and restart systems.
🔧 Temporary Workarounds
Disable Microsoft Streaming Service
windowsDisables the vulnerable service to prevent exploitation
sc config wceservice start= disabled
sc stop wceservice
🧯 If You Can't Patch
- Implement strict access controls and least privilege principles
- Deploy endpoint detection and response (EDR) solutions to monitor for exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check Windows version and if May 2024 security updates are installed. Vulnerable if running affected Windows versions without patches.Check Version:
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"Verify Fix Applied:
Verify KB5037771 (Windows 11) or KB5037768 (Windows 10) is installed via 'winver' or 'systeminfo' command.📡 Detection & Monitoring
Log Indicators:
- Unusual service starts/stops for wceservice
- Process creation with SYSTEM privileges from non-admin users
Network Indicators:
- Local system calls to vulnerable service components
SIEM Query:
EventID=4688 AND NewProcessName="*\system32\*" AND SubjectUserName!="*SYSTEM" AND ParentProcessName="*\services.exe*"