CVE-2022-30202
📋 TL;DR
This vulnerability in Windows Advanced Local Procedure Call (ALPC) allows an authenticated attacker to execute code with SYSTEM privileges by exploiting improper object handling. It affects Windows systems where an attacker already 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 by Microsoft
Windows 10 by Microsoft
Windows 10 by Microsoft
Windows 10 by Microsoft
Windows 10 by Microsoft
Windows 10 by Microsoft
Windows 10 by Microsoft
Windows 10 by Microsoft
Windows 10 by Microsoft
Windows 10 by Microsoft
Windows 10 by Microsoft
Windows 10 by Microsoft
Windows 10 by Microsoft
Windows 10 by Microsoft
Windows 10 by Microsoft
Windows 10 by Microsoft
Windows 11 by Microsoft
Windows 11 by Microsoft
Windows 7 by Microsoft
Windows 7 by Microsoft
Windows 8.1 by Microsoft
Windows 8.1 by Microsoft
Windows Rt 8.1 by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
Complete system takeover with SYSTEM privileges, enabling installation of persistent malware, credential theft, and lateral movement across the network.
Likely Case
Local privilege escalation from a standard user account to SYSTEM, allowing attackers to bypass security controls and maintain persistence.
If Mitigated
Limited impact if proper patch management and least privilege principles are enforced, though initial foothold could still be gained.
🎯 Exploit Status
Exploitation requires local access and ability to execute code. The vulnerability has been publicly disclosed and proof-of-concept code exists, making weaponization likely.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: July 2022 security updates (KB5015807, KB5015808, etc.)
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-30202
Restart Required: Yes
Instructions:
1. Apply the July 2022 Windows security updates from Microsoft Update. 2. For enterprise environments, deploy through WSUS or SCCM. 3. Restart affected systems to complete installation.
🔧 Temporary Workarounds
No known workarounds
windowsMicrosoft has not identified any workarounds for this vulnerability
🧯 If You Can't Patch
- Implement strict least privilege principles to limit user access and reduce attack surface
- Deploy application control solutions to prevent execution of unauthorized binaries
🔍 How to Verify
Check if Vulnerable:
Check if July 2022 security updates are installed via 'wmic qfe list' or 'Get-Hotfix' in PowerShellCheck Version:
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"Verify Fix Applied:
Verify KB5015807 (or equivalent for your Windows version) is installed and system has been restarted📡 Detection & Monitoring
Log Indicators:
- Event ID 4688 with parent process creating child processes with SYSTEM privileges
- Unexpected privilege escalation events in security logs
Network Indicators:
- Unusual outbound connections from systems after local privilege escalation
SIEM Query:
source="Windows Security" EventCode=4688 NewProcessName="*" TokenElevationType="%%1936"