Security Updates for Microsoft Office (October 2021) (macOS)

high Nessus Plugin ID 154142

Synopsis

The Microsoft Office product installed on the remote host is affected by multiple vulnerabilities.

Description

The Microsoft Office product installed on the remote host is affected by multiple vulnerabilities, as follows:

- An information disclosure vulnerability in rich text editing that can be exploited by a low privileged, local user. (CVE-2021-40454)

- Remote code execution vulnerabilities in Excel that can be exploited by an unauthenticated user.
(CVE-2021-40474, CVE-2021-40485) Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Microsoft has released a set of patches for Microsoft Office for Mac.

See Also

http://www.nessus.org/u?43ed1b90

http://www.nessus.org/u?9c345f31

Plugin Details

Severity: High

ID: 154142

File Name: macos_ms21_oct_office.nasl

Version: 1.3

Type: local

Agent: macosx

Published: 10/14/2021

Updated: 10/19/2021

Supported Sensors: Nessus Agent

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

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

CVSS Score Source: CVE-2021-40474

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: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:microsoft:office, cpe:/a:microsoft:excel

Required KB Items: Host/MacOSX/Version, installed_sw/Microsoft Excel

Exploit Ease: No known exploits are available

Patch Publication Date: 10/12/2021

Vulnerability Publication Date: 10/12/2021

Reference Information

CVE: CVE-2021-40454, CVE-2021-40474, CVE-2021-40485

IAVA: 2021-A-0473, 2021-A-0465, 2021-A-0468