KB5008215: Windows 11 Security Update (December 2021)

critical Nessus Plugin ID 156068

Synopsis

The Windows 11 installation on the remote host is affected by multiple vulnerabilities.

Description

The Windows 11 installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities:

- An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges.
(CVE-2021-41333, CVE-2021-43207, CVE-2021-43223, CVE-2021-43226, CVE-2021-43229, CVE-2021-43230, CVE-2021-43231, CVE-2021-43237, CVE-2021-43238, CVE-2021-43239, CVE-2021-43240, CVE-2021-43247, CVE-2021-43248, CVE-2021-43880, CVE-2021-43883, CVE-2021-43893)

- An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (CVE-2021-43216, CVE-2021-43222, CVE-2021-43224, CVE-2021-43227, CVE-2021-43235, CVE-2021-43236)

- A denial of service (DoS) vulnerability. An attacker can exploit this issue to cause the affected component to deny system or application services. (CVE-2021-43219, CVE-2021-43228)

- A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-43217, CVE-2021-43232, CVE-2021-43233, CVE-2021-43234)

Solution

Microsoft has released KB5008215 to address this issue.

See Also

https://support.microsoft.com/en-us/help/5008215

Plugin Details

Severity: Critical

ID: 156068

File Name: smb_nt_ms21_dec_5008215.nasl

Version: 1.7

Type: local

Agent: windows

Published: 12/14/2021

Updated: 1/14/2022

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure

Risk Information

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:H/RL:OF/RC:C

CVSS Score Source: CVE-2021-43217

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/14/2021

Vulnerability Publication Date: 12/14/2021

Reference Information

CVE: CVE-2021-41333, CVE-2021-43207, CVE-2021-43216, CVE-2021-43217, CVE-2021-43219, CVE-2021-43222, CVE-2021-43223, CVE-2021-43224, CVE-2021-43226, CVE-2021-43227, CVE-2021-43228, CVE-2021-43229, CVE-2021-43230, CVE-2021-43231, CVE-2021-43232, CVE-2021-43233, CVE-2021-43234, CVE-2021-43235, CVE-2021-43236, CVE-2021-43237, CVE-2021-43238, CVE-2021-43239, CVE-2021-43240, CVE-2021-43246, CVE-2021-43247, CVE-2021-43248, CVE-2021-43880, CVE-2021-43883, CVE-2021-43893

MSKB: 5008215

MSFT: MS21-5008215

IAVA: 2021-A-0586-S, 2021-A-0582-S