CVE-2024-38019
📋 TL;DR
This vulnerability in Microsoft Windows Performance Data Helper Library allows remote attackers to execute arbitrary code by sending specially crafted data to an affected system. It affects Windows systems with the vulnerable library. Attackers could potentially take control of vulnerable systems.
💻 Affected Systems
- Microsoft Windows
📦 What is this software?
Windows 10 1507 by Microsoft
Windows 10 1607 by Microsoft
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 administrative privileges, enabling data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Remote code execution leading to malware installation, credential harvesting, or lateral movement within the network.
If Mitigated
Limited impact with proper network segmentation, endpoint protection, and least privilege principles in place.
🎯 Exploit Status
Remote exploitation requires sending specially crafted data to the vulnerable service. No public exploit code available at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft Security Update for specific KB numbers
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38019
Restart Required: Yes
Instructions:
1. Apply latest Windows security updates from Microsoft
2. Restart affected systems
3. Verify patch installation via Windows Update history
🔧 Temporary Workarounds
Disable Performance Data Helper Service
windowsTemporarily disable the vulnerable service to prevent exploitation
sc stop pdh
sc config pdh start= disabled
Network Segmentation
allRestrict network access to systems running Performance Data Helper
🧯 If You Can't Patch
- Implement strict network segmentation to isolate vulnerable systems
- Deploy endpoint detection and response (EDR) solutions to monitor for exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check Windows Update history for missing security patches related to CVE-2024-38019Check Version:
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"Verify Fix Applied:
Verify KB patch is installed via 'wmic qfe list' or Windows Update history📡 Detection & Monitoring
Log Indicators:
- Unusual process creation from pdh.dll or related services
- Abnormal network connections to Performance Data Helper ports
Network Indicators:
- Suspicious traffic to Performance Data Helper service ports
- Anomalous data patterns in performance monitoring protocols
SIEM Query:
Process creation where parent_process contains 'pdh' OR network_connection where dest_port in (performance_monitoring_ports)