KB5007233: Windows 7 and Windows Server 2008 R2 Security Update (November 2021)

high Nessus Plugin ID 154984

Synopsis

The remote Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 5007233 or cumulative update 5007236. It is, therefore, affected by multiple vulnerabilities:

- An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (CVE-2021-38631, CVE-2021-38665, CVE-2021-41371)

- An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges.
(CVE-2021-41367, CVE-2021-41370, CVE-2021-41377, CVE-2021-41379, CVE-2021-42278, CVE-2021-42282, CVE-2021-42283, CVE-2021-42285, CVE-2021-42287, CVE-2021-42291)

- A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-38666, CVE-2021-42275)

Solution

Apply Security Only update KB5007233 or Cumulative Update KB5007236.

See Also

https://support.microsoft.com/en-us/help/5007233

Plugin Details

Severity: High

ID: 154984

File Name: smb_nt_ms21_nov_5007233.nasl

Version: 1.12

Type: local

Agent: windows

Published: 11/9/2021

Updated: 8/30/2022

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

Risk Information

VPR

Risk Factor: Critical

Score: 9.8

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:H/RL:OF/RC:C

CVSS Score Source: CVE-2021-42285

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.4

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

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

CVSS Score Source: CVE-2021-42291

Vulnerability Information

CPE: cpe:2.3:o:microsoft:windows:*:*:*:*:*:*:*:*

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/9/2021

Vulnerability Publication Date: 11/9/2021

CISA Known Exploited Dates: 3/17/2022, 5/2/2022

Reference Information

CVE: CVE-2021-38631, CVE-2021-41367, CVE-2021-41371, CVE-2021-41377, CVE-2021-41379, CVE-2021-42275, CVE-2021-42278, CVE-2021-38665, CVE-2021-38666, CVE-2021-41370, CVE-2021-42282, CVE-2021-42283, CVE-2021-42285, CVE-2021-42287, CVE-2021-42291

MSKB: 5007233, 5007236

MSFT: MS21-5007233, MS21-5007236

IAVA: 2021-A-0539-S, 2021-A-0545-S