CVE-2022-3699
📋 TL;DR
This is a local privilege escalation vulnerability in Lenovo HardwareScanPlugin and Lenovo Diagnostics software. A local user with limited privileges could exploit this to execute arbitrary code with elevated system privileges. Affected users are those running vulnerable versions of these Lenovo utilities on their systems.
💻 Affected Systems
- Lenovo HardwareScanPlugin
- Lenovo Diagnostics
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker with local access could gain full system control, install persistent malware, access sensitive data, and compromise the entire system.
Likely Case
Malicious local user or malware with limited privileges escalates to SYSTEM/administrator level to bypass security controls and maintain persistence.
If Mitigated
With proper patch management and least privilege principles, impact is limited to systems where vulnerable software remains unpatched.
🎯 Exploit Status
Requires local access but likely straightforward exploitation given CVSS score and CWE-787 (Out-of-bounds Write).
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: HardwareScanPlugin 1.3.1.2 or later, Lenovo Diagnostics 4.45 or later
Vendor Advisory: https://support.lenovo.com/us/en/product_security/LEN-102365
Restart Required: Yes
Instructions:
1. Visit Lenovo support site. 2. Download latest versions of HardwareScanPlugin (≥1.3.1.2) and Lenovo Diagnostics (≥4.45). 3. Install updates. 4. Restart system.
🔧 Temporary Workarounds
Uninstall vulnerable software
windowsRemove affected Lenovo utilities if not required
Control Panel > Programs > Uninstall Lenovo HardwareScanPlugin and Lenovo Diagnostics
Restrict local user privileges
windowsImplement least privilege for all user accounts
🧯 If You Can't Patch
- Remove or disable Lenovo HardwareScanPlugin and Lenovo Diagnostics from affected systems
- Implement application whitelisting to prevent execution of vulnerable components
🔍 How to Verify
Check if Vulnerable:
Check installed version of Lenovo HardwareScanPlugin and Lenovo Diagnostics via Programs and FeaturesCheck Version:
wmic product get name,version | findstr /i "Lenovo"Verify Fix Applied:
Confirm HardwareScanPlugin version is ≥1.3.1.2 and Lenovo Diagnostics version is ≥4.45📡 Detection & Monitoring
Log Indicators:
- Unusual process creation from Lenovo utility paths
- Privilege escalation attempts
Network Indicators:
- None - local exploitation only
SIEM Query:
Process creation where parent process contains "Lenovo" and child process has elevated privileges