CVE-2018-8449HighCVSS 5.3

Device Guard Security Feature Bypass Vulnerability

Published
September 11, 2018
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2018-8449 →

📋 Description

A security feature bypass exists when Device Guard incorrectly validates an untrusted file. An attacker who successfully exploited this vulnerability could make an unsigned file appear to be signed. Because Device Guard relies on the signature to determine the file is non-malicious, Device Guard could then allow a malicious file to execute. In an attack scenario, an attacker could make an untrusted file appear to be a trusted file. The update addresses the vulnerability by correcting how Device Guard handles untrusted files.

🎯 Affected products14

  • 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 Version 1709 for 32-bit Systems
  • Windows 10 Version 1709 for x64-based Systems
  • Windows 10 Version 1803 for 32-bit Systems
  • Windows 10 Version 1803 for x64-based Systems
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)
  • Windows Server, version 1709 (Server Core Installation)
  • Windows Server, version 1803 (Server Core Installation)

✅ Remediation

KB4457138 (Security Update) KB4457128 (Security Update) KB4457142 (Security Update) KB4457132 (Security Update) KB4457131 (Security Update)

🔗 References (6)