Kaspersky Threats

Detect date

?

12/14/2021

Severity

?

High

Description

Multiple vulnerabilities were found in Microsoft Office. Malicious users can exploit these vulnerabilities to gain privileges, execute arbitrary code, spoof user interface, obtain sensitive information.

Below is a complete list of vulnerabilities:

An elevation of privilege vulnerability in Microsoft Jet Red Database Engine and Access Connectivity Engine can be exploited remotely to gain privileges.
A remote code execution vulnerability in Microsoft Office Graphics can be exploited remotely to execute arbitrary code.
A spoofing vulnerability in Microsoft Office Trust Center can be exploited remotely to spoof user interface.
A spoofing vulnerability in Microsoft SharePoint Server can be exploited remotely to spoof user interface.
A remote code execution vulnerability in Microsoft SharePoint Server can be exploited remotely to execute arbitrary code.
An information disclosure vulnerability in Visual Basic for Applications can be exploited remotely to obtain sensitive information.
A remote code execution vulnerability in Microsoft Excel can be exploited remotely to execute arbitrary code.
An elevation of privilege vulnerability in Microsoft SharePoint can be exploited remotely to gain privileges.

Affected products

Microsoft Excel 2013 Service Pack 1 (64-bit editions)
Microsoft Office 2016 (32-bit edition)
Microsoft Office LTSC 2021 for 64-bit editions
Microsoft Office LTSC 2021 for 32-bit editions
Microsoft Office 2019 for 64-bit editions
Microsoft Office LTSC for Mac 2021
Microsoft Office 2013 Service Pack 1 (32-bit editions)
Microsoft Office 2016 (64-bit edition)
Microsoft Office 2013 RT Service Pack 1
Microsoft Office 2013 Service Pack 1 (64-bit editions)
Office Online Server
Microsoft Office Web Apps Server 2013 Service Pack 1
Microsoft Office 2019 for Mac
Microsoft Excel 2013 Service Pack 1 (32-bit editions)
Microsoft Excel 2016 (64-bit edition)
Microsoft 365 Apps for Enterprise for 64-bit Systems
Microsoft Excel 2016 (32-bit edition)
Microsoft Office 2019 for 32-bit editions
Microsoft Excel 2013 RT Service Pack 1
Microsoft 365 Apps for Enterprise for 32-bit Systems
Microsoft SharePoint Enterprise Server 2016
Microsoft SharePoint Enterprise Server 2013 Service Pack 1
Microsoft SharePoint Server 2019

Solution

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

Original advisories

CVE-2021-42293
CVE-2021-43875
CVE-2021-43255
CVE-2021-42320
CVE-2021-42294
CVE-2021-42309
CVE-2021-42295
CVE-2021-43242
CVE-2021-43256
CVE-2021-43876

Impacts

?

ACE

[?]

OSI

[?]

PE

[?]

SUI

[?]

Detect date ?	12/14/2021
Severity ?	High
Description	Multiple vulnerabilities were found in Microsoft Office. Malicious users can exploit these vulnerabilities to gain privileges, execute arbitrary code, spoof user interface, obtain sensitive information. Below is a complete list of vulnerabilities: An elevation of privilege vulnerability in Microsoft Jet Red Database Engine and Access Connectivity Engine can be exploited remotely to gain privileges. A remote code execution vulnerability in Microsoft Office Graphics can be exploited remotely to execute arbitrary code. A spoofing vulnerability in Microsoft Office Trust Center can be exploited remotely to spoof user interface. A spoofing vulnerability in Microsoft SharePoint Server can be exploited remotely to spoof user interface. A remote code execution vulnerability in Microsoft SharePoint Server can be exploited remotely to execute arbitrary code. An information disclosure vulnerability in Visual Basic for Applications can be exploited remotely to obtain sensitive information. A remote code execution vulnerability in Microsoft Excel can be exploited remotely to execute arbitrary code. An elevation of privilege vulnerability in Microsoft SharePoint can be exploited remotely to gain privileges.
Affected products	Microsoft Excel 2013 Service Pack 1 (64-bit editions) Microsoft Office 2016 (32-bit edition) Microsoft Office LTSC 2021 for 64-bit editions Microsoft Office LTSC 2021 for 32-bit editions Microsoft Office 2019 for 64-bit editions Microsoft Office LTSC for Mac 2021 Microsoft Office 2013 Service Pack 1 (32-bit editions) Microsoft Office 2016 (64-bit edition) Microsoft Office 2013 RT Service Pack 1 Microsoft Office 2013 Service Pack 1 (64-bit editions) Office Online Server Microsoft Office Web Apps Server 2013 Service Pack 1 Microsoft Office 2019 for Mac Microsoft Excel 2013 Service Pack 1 (32-bit editions) Microsoft Excel 2016 (64-bit edition) Microsoft 365 Apps for Enterprise for 64-bit Systems Microsoft Excel 2016 (32-bit edition) Microsoft Office 2019 for 32-bit editions Microsoft Excel 2013 RT Service Pack 1 Microsoft 365 Apps for Enterprise for 32-bit Systems Microsoft SharePoint Enterprise Server 2016 Microsoft SharePoint Enterprise Server 2013 Service Pack 1 Microsoft SharePoint Server 2019
Solution	Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)
Original advisories	CVE-2021-42293 CVE-2021-43875 CVE-2021-43255 CVE-2021-42320 CVE-2021-42294 CVE-2021-42309 CVE-2021-42295 CVE-2021-43242 CVE-2021-43256 CVE-2021-43876
Impacts ?	ACE [?] OSI [?] PE [?] SUI [?]
Related products	Microsoft Office Microsoft Excel Microsoft SharePoint
CVE-IDS ?	CVE-2021-422935.0Critical CVE-2021-438755.0Critical CVE-2021-432555.0Critical CVE-2021-423203.5Warning CVE-2021-422946.5High CVE-2021-423096.5High CVE-2021-422951.9Warning CVE-2021-432423.5Warning CVE-2021-432565.0Critical
KB list	5002054 5002047 4504710 4504745 5002101 5002045 5002015 5002099 5002033 5002103 4486726 5002059 5002008 5002055 5002098 5002061 5002097 5002105 5002071 5002104
Microsoft official advisories	Microsoft Security Update Guide
	Find out the statistics of the vulnerabilities spreading in your region

KLA12389Multiple vulnerabilities in Microsoft Office

KLA12389
Multiple vulnerabilities in Microsoft Office