Detections
Analytics

Security Updates for Microsoft Excel Products (January 2021)

high Nessus Plugin ID 144879

Language:

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-2021-1713, CVE-2021-1714)

Solution

Microsoft has released the following security updates to address this issue:
-KB4493186
 -KB4493165
 -KB4493176

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?8e7849d0

http://www.nessus.org/u?79c23be5

http://www.nessus.org/u?644d89eb

Plugin Details

Severity: High

ID: 144879

File Name: smb_nt_ms21_jan_excel.nasl

Version: 1.8

Type: local

Agent: windows

Published: 1/12/2021

Updated: 12/7/2022

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-2021-1714

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:office, cpe:/a:microsoft:excel

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 1/12/2021

Vulnerability Publication Date: 1/12/2021

Reference Information

CVE: CVE-2021-1713, CVE-2021-1714

IAVA: 2021-A-0016-S

MSFT: MS21-4493165, MS21-4493176, MS21-4493186

MSKB: 4493165, 4493176, 4493186