Security Updates for Microsoft Office (October 2020) (macOS)

High Nessus Plugin ID 141470

New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it's different from CVSS.

VPR Score: 5.9

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 missing security updates. It is, therefore, affected by multiple vulnerabilities:

- A remote code execution vulnerability exists when the Base3D rendering engine handles memory. An attacker who successfully exploited the vulnerability would gain execution on a victim system. (CVE-2020-16918)

- A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. (CVE-2020-16929)

- A security feature bypass vulnerability exists in Microsoft Word software when it fails to properly handle .LNK files. An attacker who successfully exploited the vulnerability could use a specially crafted file to perform actions in the security context of the current user. (CVE-2020-16933)

Note that Nessus has not tested for this issue 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.

Plugin Details

Severity: High

ID: 141470

File Name: macos_ms20_oct_office.nasl

Version: 1.5

Type: local

Agent: macosx

Published: 2020/10/15

Updated: 2020/10/22

Dependencies: 86383

Risk Information

Risk Factor: High

VPR Score: 5.9

CVSS Score Source: CVE-2020-16918

CVSS v2.0

Base Score: 9.3

Temporal Score: 6.9

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

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

CVSS v3.0

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

Required KB Items: Host/MacOSX/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/10/13

Vulnerability Publication Date: 2020/10/13

Reference Information

CVE: CVE-2020-16918, CVE-2020-16929, CVE-2020-16933

IAVA: 2020-A-0454