CVE-2022-30160
📋 TL;DR
This vulnerability allows an authenticated attacker to exploit the Windows Advanced Local Procedure Call (ALPC) mechanism to elevate privileges from a lower-privileged account to SYSTEM level. It affects Windows operating systems and requires the attacker to have initial access to the target system. Successful exploitation enables 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 11 by Microsoft
Windows 11 by Microsoft
Windows 7 by Microsoft
Windows 8.1 by Microsoft
Windows Rt 8.1 by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
Attacker gains SYSTEM privileges, enabling complete control over the system, installation of persistent malware, credential theft, and lateral movement across the network.
Likely Case
Privilege escalation from a standard user or service account to SYSTEM, allowing installation of additional malware, disabling security controls, and accessing sensitive data.
If Mitigated
With proper endpoint protection, least privilege principles, and network segmentation, impact is limited to the compromised host with reduced lateral movement capability.
🎯 Exploit Status
Exploitation requires authenticated access to the target system. Proof-of-concept code has been published, making weaponization likely by threat actors.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: June 2022 security updates (KB5014699 for Windows 10 21H2, KB5014697 for Windows 11, etc.)
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-30160
Restart Required: Yes
Instructions:
1. Apply June 2022 Windows security updates via Windows Update. 2. For enterprise environments, deploy updates through WSUS or SCCM. 3. Restart systems after patch installation.
🔧 Temporary Workarounds
No known effective workarounds
windowsMicrosoft has not published specific workarounds for this vulnerability. Patching is the only effective mitigation.
🧯 If You Can't Patch
- Implement strict least privilege principles - ensure users operate with minimal necessary permissions
- Deploy endpoint detection and response (EDR) solutions to detect privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check Windows version and patch level. Systems without June 2022 security updates are vulnerable.Check Version:
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"Verify Fix Applied:
Verify that June 2022 security updates (KB5014699, KB5014697, or equivalent) are installed via 'winver' or 'systeminfo' command.📡 Detection & Monitoring
Log Indicators:
- Windows Security Event ID 4688 (process creation) showing unusual parent-child process relationships
- Event ID 4672 (special privileges assigned to new logon) from unexpected processes
Network Indicators:
- Unusual outbound connections from system processes
- Lateral movement attempts following privilege escalation
SIEM Query:
EventID=4688 AND (ParentImage LIKE '%cmd.exe%' OR ParentImage LIKE '%powershell.exe%') AND NewProcessName LIKE '%lsass.exe%' OR NewProcessName LIKE '%winlogon.exe%'