Security Updates for Microsoft Office Products (July 2021)

high Nessus Plugin ID 151595

Synopsis

The Microsoft Office Products are affected by a security feature bypass vulnerability.

Description

The Microsoft Office Products are missing security updates. It is, therefore, affected by a security feature bypass vulnerability. An attacker can exploit this and bypass the security feature and perform unauthorized actions compromising the confidentiality and integrity of the system/application.

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 the following security updates to address this issue:
-KB5001979
-KB5001983

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/kb/5001983

https://support.microsoft.com/kb/5001979

Plugin Details

Severity: High

ID: 151595

File Name: smb_nt_ms21_jul_office.nasl

Version: 1.9

Type: local

Agent: windows

Published: 7/13/2021

Updated: 12/29/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.8

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

CVSS Score Source: CVE-2021-34469

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.6

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

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: 7/13/2021

Vulnerability Publication Date: 7/13/2021

Reference Information

CVE: CVE-2021-34469

IAVA: 2021-A-0316-S

MSFT: MS21-5001979, MS21-5001983

MSKB: 5001979, 5001983