Vulnerability CVE-2020-16910


Published: 2020-10-16   Modified: 2020-10-17

Description:
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.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 permissions., aka 'Windows Security Feature Bypass Vulnerability'.

Type:

CWE-281

(Improper Preservation of Permissions)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Microsoft -> Windows 10 
Microsoft -> Windows server 2016 
Microsoft -> Windows server 2019 

 References:
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16910

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