Windows UEFI File Creation Permissions Bypass Vulnerability

Windows UEFI File Creation Permissions Bypass Vulnerability

CVE-2020-16910 · MEDIUM Severity

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

<p>A security feature bypass vulnerability exists when Microsoft Windows fails to handle file creation permissions, which could allow an attacker to create files in a protected Unified Extensible Firmware Interface (UEFI) location.</p> <p>To exploit this vulnerability, an attacker could run a specially crafted application to bypass Unified Extensible Firmware Interface (UEFI) variable security in Windows.</p> <p>The security update addresses the vulnerability by correcting security feature behavior to enforce permissions.</p>

Learn more about our Web Application Penetration Testing UK.