CVE-2023-28741
📋 TL;DR
A buffer overflow vulnerability in Intel QAT drivers for Windows allows authenticated local users to potentially escalate privileges. This affects systems using Intel QuickAssist Technology hardware version 1.0 with vulnerable driver versions. Attackers could gain elevated system privileges on affected Windows machines.
💻 Affected Systems
- Intel QuickAssist Technology (QAT) drivers for Windows
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with SYSTEM-level privileges, allowing complete control over the affected system, data theft, and lateral movement capabilities.
Likely Case
Local privilege escalation from standard user to administrator/SYSTEM privileges, enabling installation of malware, persistence mechanisms, or credential harvesting.
If Mitigated
Limited impact due to proper access controls, monitoring, and defense-in-depth measures preventing successful exploitation.
🎯 Exploit Status
Requires authenticated local access and knowledge of buffer overflow exploitation techniques. No public exploit code has been disclosed as of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 1.10 or later
Vendor Advisory: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00861.html
Restart Required: Yes
Instructions:
1. Download Intel QAT driver version 1.10 or later from Intel's website. 2. Uninstall current QAT driver. 3. Install updated driver. 4. Restart system to complete installation.
🔧 Temporary Workarounds
Disable QAT functionality
windowsTemporarily disable Intel QuickAssist Technology if not required for system operation
Disable via Device Manager: Right-click QAT device > Disable device
Restrict local access
allLimit local user access to systems with vulnerable drivers
🧯 If You Can't Patch
- Implement strict access controls to limit local user access to affected systems
- Enable enhanced monitoring and logging for privilege escalation attempts on affected systems
🔍 How to Verify
Check if Vulnerable:
Check Device Manager for Intel QAT device properties, driver version should be 1.10 or higher. Alternatively, run: wmic path win32_pnpentity where "deviceid like '%VEN_8086&DEV_0B30%'" get caption,driverVersionCheck Version:
wmic path win32_pnpentity where "deviceid like '%VEN_8086&DEV_0B30%'" get caption,driverVersionVerify Fix Applied:
Verify driver version shows 1.10 or higher in Device Manager or via wmic command. Confirm system stability after driver update.📡 Detection & Monitoring
Log Indicators:
- Windows Event Logs showing driver loading/unloading anomalies
- Security logs showing privilege escalation attempts
- System logs with QAT driver errors
Network Indicators:
- No network indicators - local exploit only
SIEM Query:
EventID=4688 AND (ProcessName LIKE '%qat%' OR CommandLine LIKE '%qat%') AND NewProcessName='cmd.exe' OR 'powershell.exe'