Kaspersky Threats

Detect date

?

10/12/2021

Severity

?

High

Description

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

Below is a complete list of vulnerabilities:

An information disclosure vulnerability in Rich Text Edit Control can be exploited remotely to obtain sensitive information.
A remote code execution vulnerability in Microsoft SharePoint Server can be exploited remotely to execute arbitrary code.
A remote code execution vulnerability in Microsoft Office Visio can be exploited remotely to execute arbitrary code.
A spoofing vulnerability in Microsoft SharePoint Server can be exploited remotely to spoof user interface.
A remote code execution vulnerability in Microsoft Excel can be exploited remotely to execute arbitrary code.
An information disclosure vulnerability in Microsoft SharePoint Server can be exploited remotely to obtain sensitive information.
A remote code execution vulnerability in Microsoft Word can be exploited remotely to execute arbitrary code.
An information disclosure vulnerability in Microsoft Excel can be exploited remotely to obtain sensitive information.

Exploitation

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Affected products

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

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-2021-40454
CVE-2021-41344
CVE-2021-40481
CVE-2021-40483
CVE-2021-40473
CVE-2021-40487
CVE-2021-40482
CVE-2021-40480
CVE-2021-40486
CVE-2021-40485
CVE-2021-40479
CVE-2021-40471
CVE-2021-40474
CVE-2021-40484
CVE-2021-40472

Impacts

?

ACE

[?]

OSI

[?]

SUI

[?]

Detect date ?	10/12/2021
Severity ?	High
Description	Multiple vulnerabilities were found in Microsoft Office. Malicious users can exploit these vulnerabilities to obtain sensitive information, execute arbitrary code, spoof user interface. Below is a complete list of vulnerabilities: An information disclosure vulnerability in Rich Text Edit Control can be exploited remotely to obtain sensitive information. A remote code execution vulnerability in Microsoft SharePoint Server can be exploited remotely to execute arbitrary code. A remote code execution vulnerability in Microsoft Office Visio can be exploited remotely to execute arbitrary code. A spoofing vulnerability in Microsoft SharePoint Server can be exploited remotely to spoof user interface. A remote code execution vulnerability in Microsoft Excel can be exploited remotely to execute arbitrary code. An information disclosure vulnerability in Microsoft SharePoint Server can be exploited remotely to obtain sensitive information. A remote code execution vulnerability in Microsoft Word can be exploited remotely to execute arbitrary code. An information disclosure vulnerability in Microsoft Excel can be exploited remotely to obtain sensitive information.
Exploitation	Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.
Affected products	Microsoft Office Web Apps Server 2013 Service Pack 1 Microsoft Office LTSC for Mac 2021 Microsoft 365 Apps for Enterprise for 32-bit Systems Microsoft Office 2013 Service Pack 1 (32-bit editions) Microsoft SharePoint Foundation 2013 Service Pack 1 Microsoft Office 2019 for 32-bit editions Microsoft Office 2013 RT Service Pack 1 Microsoft Excel 2013 Service Pack 1 (32-bit editions) Microsoft SharePoint Enterprise Server 2013 Service Pack 1 Microsoft Excel 2013 Service Pack 1 (64-bit editions) Microsoft Office 2019 for Mac Microsoft Office 2013 Service Pack 1 (64-bit editions) Microsoft Office LTSC 2021 for 64-bit editions Microsoft Excel 2016 (32-bit edition) Microsoft Excel 2013 RT Service Pack 1 Microsoft Office 2016 (64-bit edition) Microsoft Office 2016 (32-bit edition) Microsoft SharePoint Enterprise Server 2016 Microsoft 365 Apps for Enterprise for 64-bit Systems Microsoft SharePoint Server 2019 Microsoft Office Online Server Microsoft Office LTSC 2021 for 32-bit editions Microsoft Office 2019 for 64-bit editions Microsoft Excel 2016 (64-bit edition)
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-2021-40454 CVE-2021-41344 CVE-2021-40481 CVE-2021-40483 CVE-2021-40473 CVE-2021-40487 CVE-2021-40482 CVE-2021-40480 CVE-2021-40486 CVE-2021-40485 CVE-2021-40479 CVE-2021-40471 CVE-2021-40474 CVE-2021-40484 CVE-2021-40472
Impacts ?	ACE [?] OSI [?] SUI [?]
Related products	Microsoft Office Microsoft Excel Microsoft SharePoint
CVE-IDS ?	CVE-2021-404542.1Warning CVE-2021-413446.5High CVE-2021-404816.8High CVE-2021-404833.5Warning CVE-2021-404736.8High CVE-2021-404876.5High CVE-2021-404825.0Warning CVE-2021-404806.8High CVE-2021-404866.8High CVE-2021-404856.8High CVE-2021-404796.8High CVE-2021-404716.8High CVE-2021-404746.8High CVE-2021-404843.5Warning CVE-2021-404722.1Warning
KB list	5001960 5001985 5002029 5002043 5002004 4461476 5002036 5001924 5002027 5002042 5001982 5002006 5002030 4493202 5002028 4018332
Microsoft official advisories	Microsoft Security Update Guide
	Find out the statistics of the vulnerabilities spreading in your region

KLA12316Multiple vulnerabilities in Microsoft Office

KLA12316
Multiple vulnerabilities in Microsoft Office