CVE-2020-12366
📋 TL;DR
This vulnerability in Intel Graphics Drivers allows a privileged user to escalate privileges via local access due to insufficient input validation. It affects systems with Intel Graphics Drivers before version 27.20.100.8587, potentially enabling attackers to gain higher system permissions.
💻 Affected Systems
- Intel Graphics Drivers
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker with local access could gain full system control, leading to data theft, system compromise, or installation of persistent malware.
Likely Case
A malicious insider or compromised account could escalate privileges to execute arbitrary code, potentially disrupting operations or accessing sensitive data.
If Mitigated
With proper patching and least privilege controls, the risk is reduced to minimal, limiting exploitation to isolated incidents.
🎯 Exploit Status
Exploitation requires local privileged access and knowledge of the vulnerability; no public exploits confirmed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 27.20.100.8587 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. Download and install the latest graphics driver version 27.20.100.8587 or newer. 3. Restart the system to apply changes.
🔧 Temporary Workarounds
Restrict Local Access
allLimit local user privileges and access to reduce attack surface.
🧯 If You Can't Patch
- Implement strict access controls and monitor for suspicious local activity.
- Isolate affected systems from critical networks to limit potential damage.
🔍 How to Verify
Check if Vulnerable:
Check the Intel Graphics Driver version via Device Manager on Windows or command 'lspci -k' on Linux to identify driver details.Check Version:
On Windows: Open Device Manager > Display adapters > Properties > Driver tab. On Linux: Use 'modinfo i915' or similar for driver info.Verify Fix Applied:
Verify the driver version is 27.20.100.8587 or higher after update.📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation attempts in system logs
- Failed driver access events
Network Indicators:
- None, as this is a local exploit
SIEM Query:
Search for events like 'privilege escalation' or 'driver access denied' in system logs.