CVE-2024-30068

8.8 HIGH

📋 TL;DR

This Windows kernel vulnerability allows attackers to gain SYSTEM-level privileges by exploiting improper memory handling. It affects all Windows systems with the vulnerable kernel version. Attackers must already have local access to exploit this vulnerability.

💻 Affected Systems

Products:
  • Windows 10
  • Windows 11
  • Windows Server 2016
  • Windows Server 2019
  • Windows Server 2022
Versions: All versions prior to May 2024 security updates
Operating Systems: Windows
Default Config Vulnerable: ⚠️ Yes
Notes: All default Windows installations are vulnerable. No special configuration required for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with SYSTEM privileges, enabling installation of persistent malware, credential theft, and lateral movement across the network.

🟠

Likely Case

Local privilege escalation allowing attackers to bypass security controls, install additional malware, or access protected system resources.

🟢

If Mitigated

Limited impact if proper patch management and endpoint protection are in place, though local attackers could still attempt exploitation.

🌐 Internet-Facing: LOW - Requires local access; cannot be exploited remotely over the internet.
🏢 Internal Only: HIGH - Any compromised user account or malware with local execution can exploit this to gain SYSTEM privileges.

🎯 Exploit Status

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

Requires local access and ability to execute code. No public exploit available as of knowledge cutoff.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: May 2024 security updates (KB5037771 for Windows 10, KB5037768 for Windows 11, etc.)

Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-30068

Restart Required: Yes

Instructions:

1. Apply May 2024 Windows security updates via Windows Update. 2. For enterprise environments, deploy updates through WSUS or SCCM. 3. Restart systems after update installation.

🔧 Temporary Workarounds

Restrict local user privileges

windows

Limit standard user accounts to prevent initial local access required for exploitation

🧯 If You Can't Patch

  • Implement strict endpoint protection with behavioral analysis to detect privilege escalation attempts
  • Segment networks to limit lateral movement if exploitation occurs

🔍 How to Verify

Check if Vulnerable:

Check if May 2024 security updates are installed via Settings > Windows Update > Update history or 'wmic qfe list' command

Check Version:

wmic qfe list | findstr KB5037771 KB5037768

Verify Fix Applied:

Verify KB5037771 (Windows 10) or KB5037768 (Windows 11) is installed in installed updates list

📡 Detection & Monitoring

Log Indicators:

  • Event ID 4688 with suspicious parent processes
  • Unexpected SYSTEM privilege acquisition
  • Kernel mode driver loading events

Network Indicators:

  • Unusual outbound connections from SYSTEM context
  • Lateral movement attempts following local exploitation

SIEM Query:

EventID=4688 AND NewProcessName="*" AND TokenElevationType=%%1938 AND ParentProcessName NOT IN ("explorer.exe", "svchost.exe")

🔗 References

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