Detections
Analytics

Security Updates for Microsoft Office Products (October 2021)

high Nessus Plugin ID 154038

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Synopsis

The Microsoft Office Products are affected by multiple vulnerabilities.

Description

The Microsoft Office Products are missing security updates.
It is, therefore, affected by multiple vulnerabilities :

 - An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (CVE-2021-40454, CVE-2021-40472)

 - A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-40471, CVE-2021-40473, CVE-2021-40474, CVE-2021-40479, CVE-2021-40480, CVE-2021-40481, CVE-2021-40485, CVE-2021-40486)

Solution

Microsoft has released the following security updates to address this issue:
-KB4018332
 -KB5001982
 -KB5001985
 -KB4461476

For Office 365, Office 2016 C2R, or Office 2019, ensure automatic updates are enabled or open any office app and manually perform an update.

See Also

https://support.microsoft.com/en-us/help/4018332

https://support.microsoft.com/en-us/help/4461476

https://support.microsoft.com/en-us/help/5001982

https://support.microsoft.com/en-us/help/5001985

http://www.nessus.org/u?42ab6861

http://www.nessus.org/u?fd4508ff

Plugin Details

Severity: High

ID: 154038

File Name: smb_nt_ms21_oct_office.nasl

Version: 1.12

Type: local

Agent: windows

Published: 10/12/2021

Updated: 11/28/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.6

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

CVSS Score Source: CVE-2021-40479

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.2

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

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

Vulnerability Information

CPE: cpe:/a:microsoft:office

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

Reference Information

CVE: CVE-2021-40454, CVE-2021-40471, CVE-2021-40472, CVE-2021-40473, CVE-2021-40479

IAVA: 2021-A-0465-S, 2021-A-0468-S, 2021-A-0472-S, 2021-A-0473-S, 2021-A-0475-S

MSFT: MS21-4018332, MS21-4461476, MS21-5001982, MS21-5001985

MSKB: 4018332, 4461476, 5001982, 5001985