KB5006669: Windows 10 Version 1607 and Windows Server 2016 Security Update (October 2021)

high Nessus Plugin ID 154034

Synopsis

The remote Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 5006669.
It is, therefore, affected by multiple vulnerabilities:

- A denial of service (DoS) vulnerability. An attacker can exploit this issue to cause the affected component to deny system or application services. (CVE-2021-36953, CVE-2021-40463)

- An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges.
(CVE-2021-26441, CVE-2021-26442, CVE-2021-40443, CVE-2021-40449, CVE-2021-40466, CVE-2021-40467, CVE-2021-40470, CVE-2021-40476, CVE-2021-40477, CVE-2021-40478, CVE-2021-40488, CVE-2021-40489, CVE-2021-41335, CVE-2021-41345, CVE-2021-41347)

- A session spoofing vulnerability exists. An attacker can exploit this to perform actions with the privileges of another user. (CVE-2021-36970, CVE-2021-40455, CVE-2021-41361)

- A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-40465, CVE-2021-40469, CVE-2021-41331, CVE-2021-41340, CVE-2021-41342)

- An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (CVE-2021-38662, CVE-2021-38663, CVE-2021-40454, CVE-2021-41332, CVE-2021-41343)

- A security feature bypass vulnerability exists. An attacker can exploit this and bypass the security feature and perform unauthorized actions compromising the integrity of the system/application.
(CVE-2021-40460, CVE-2021-41337, CVE-2021-41338)

Solution

Apply Security Update 5006669

Plugin Details

Severity: High

ID: 154034

File Name: smb_nt_ms21_oct_5006669.nasl

Version: 1.9

Type: local

Agent: windows

Published: 10/12/2021

Updated: 5/9/2022

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

Risk Information

CVSS Score Source: CVE-2021-41345

VPR

Risk Factor: Critical

Score: 9.6

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

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

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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: 10/12/2021

Vulnerability Publication Date: 10/12/2021

CISA Known Exploited Dates: 12/1/2021

Exploitable With

Metasploit (Win32k NtGdiResetDC Use After Free Local Privilege Elevation)

Reference Information

CVE: CVE-2021-26441, CVE-2021-26442, CVE-2021-36953, CVE-2021-36970, CVE-2021-38662, CVE-2021-38663, CVE-2021-40443, CVE-2021-40449, CVE-2021-40454, CVE-2021-40455, CVE-2021-40460, CVE-2021-40463, CVE-2021-40465, CVE-2021-40466, CVE-2021-40467, CVE-2021-40469, CVE-2021-40470, CVE-2021-40476, CVE-2021-40477, CVE-2021-40478, CVE-2021-40488, CVE-2021-40489, CVE-2021-41331, CVE-2021-41332, CVE-2021-41335, CVE-2021-41337, CVE-2021-41338, CVE-2021-41340, CVE-2021-41342, CVE-2021-41343, CVE-2021-41345, CVE-2021-41347, CVE-2021-41361

IAVA: 2021-A-0472-S, 2021-A-0475-S

MSKB: 5006669

MSFT: MS21-5006669