CVE-2017-8493HighCVSS 5.6

Windows Security Feature Bypass Vulnerability

Published
June 13, 2017
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2017-8493 →

📋 Description

A security feature bypass vulnerability exists when Microsoft Windows fails to enforce case sensitivity for certain variable checks, which could allow an attacker to set variables that are either read-only or require authentication. To exploit this vulnerability, an attacker could run a specially crafted application to bypass Unified Extensible Firmware Interface (UEFI) variable security in Windows. The security update addresses the vulnerability by correcting security feature behavior to enforce case sensitivity for certain variable checks.

🎯 Affected products15

  • Windows 10 Version 1511 for 32-bit Systems
  • Windows 10 Version 1511 for x64-based Systems
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 Version 1703 for 32-bit Systems
  • Windows 10 Version 1703 for x64-based Systems
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows 8.1 for 32-bit systems
  • Windows 8.1 for x64-based systems
  • Windows RT 8.1
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)

✅ Remediation

KB4022727 (Security Update) KB4022714 (Security Update) KB4022715 (Security Update) KB4022726 (Monthly Rollup) KB4022717 (Security Only) KB4022725 (Security Update)

🔗 References (7)