Security Updates for Microsoft Excel Products (February 2021)

high Nessus Plugin ID 146336

Synopsis

The Microsoft Excel Products are affected by multiple vulnerabilities.

Description

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

- A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-24067, CVE-2021-24068, CVE-2021-24069, CVE-2021-24070)

Solution

Microsoft has released the following security updates to address this issue:
-KB4493222
-KB4493211
-KB4493196

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

http://www.nessus.org/u?1bb1a89a

http://www.nessus.org/u?15b56b9e

http://www.nessus.org/u?43db639c

Plugin Details

Severity: High

ID: 146336

File Name: smb_nt_ms21_feb_excel.nasl

Version: 1.8

Type: local

Agent: windows

Published: 2/9/2021

Updated: 6/10/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2021-24070

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:microsoft:excel

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 2/9/2021

Vulnerability Publication Date: 2/9/2021

Reference Information

CVE: CVE-2021-24067, CVE-2021-24068, CVE-2021-24069, CVE-2021-24070

IAVA: 2021-A-0067-S

MSFT: MS21-4493196, MS21-4493211, MS21-4493222

MSKB: 4493196, 4493211, 4493222