CVE-2020-0521
📋 TL;DR
This vulnerability in Intel Graphics Drivers allows an authenticated user to potentially escalate privileges via local access. It affects systems with vulnerable Intel graphics drivers before version 15.45.32.5145. Exploitation could lead to unauthorized system control.
💻 Affected Systems
- Intel Graphics Drivers
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker gains full administrative control over the system, enabling data theft, persistence, or further attacks.
Likely Case
Local privilege escalation allowing an authenticated user to execute code with higher privileges.
If Mitigated
Limited impact if patched or with strict access controls, but still poses risk in shared environments.
🎯 Exploit Status
Exploitation requires authenticated local access and may involve complex driver manipulation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 15.45.32.5145 or later
Vendor Advisory: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00438.html
Restart Required: Yes
Instructions:
1. Visit Intel's driver download page. 2. Identify your graphics hardware. 3. Download and install driver version 15.45.32.5145 or newer. 4. Restart the system to apply changes.
🔧 Temporary Workarounds
Restrict Local Access
allLimit user accounts with local access to reduce attack surface.
Disable Unnecessary Graphics Features
windowsReduce driver functionality to mitigate potential exploitation vectors.
🧯 If You Can't Patch
- Implement strict access controls and monitor for suspicious local activity.
- Isolate affected systems from critical networks and apply principle of least privilege.
🔍 How to Verify
Check if Vulnerable:
Check Intel Graphics Driver version via Device Manager (Windows) or command line (e.g., 'lspci -v' on Linux).Check Version:
Windows: 'wmic path win32_pnpentity get caption, driverVersion' filtered for Intel; Linux: 'modinfo i915' or similar.Verify Fix Applied:
Confirm driver version is 15.45.32.5145 or higher after update.📡 Detection & Monitoring
Log Indicators:
- Unusual driver-related errors or crashes in system logs
- Suspicious privilege escalation attempts in security logs
Network Indicators:
- Not applicable, as this is a local exploit
SIEM Query:
Search for events related to driver failures or unauthorized privilege changes on systems with Intel graphics.