Kaspersky Threats

Detect date

?

05/11/2021

Severity

?

High

Description

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

Below is a complete list of vulnerabilities:

A remote code execution vulnerability in Microsoft SharePoint can be exploited remotely to execute arbitrary code.
A spoofing vulnerability in Skype for Business and Lync can be exploited remotely to spoof user interface.
A remote code execution vulnerability in Skype for Business and Lync can be exploited remotely to execute arbitrary code.
An information disclosure vulnerability in Microsoft Office can be exploited remotely to obtain sensitive information.
A remote code execution vulnerability in Microsoft Jet Red Database Engine and Access Connectivity Engine can be exploited remotely to execute arbitrary code.
A spoofing vulnerability in Microsoft SharePoint can be exploited remotely to spoof user interface.
A remote code execution vulnerability in Microsoft Office can be exploited remotely to execute arbitrary code.
A remote code execution vulnerability in Microsoft Office Graphics can be exploited remotely to execute arbitrary code.
A remote code execution vulnerability in Microsoft SharePoint Server can be exploited remotely to execute arbitrary code.
An information disclosure vulnerability in Microsoft SharePoint Server can be exploited remotely to obtain sensitive information.
An information disclosure vulnerability in Microsoft Excel can be exploited remotely to obtain sensitive information.
An information disclosure vulnerability in Microsoft SharePoint can be exploited remotely to obtain sensitive information.

Affected products

Microsoft Office Online Server
Microsoft SharePoint Enterprise Server 2016
Microsoft Office Web Apps Server 2013 Service Pack 1
Microsoft Office 2013 Service Pack 1 (32-bit editions)
Microsoft Excel 2013 Service Pack 1 (32-bit editions)
Microsoft Office 2016 (64-bit edition)
Microsoft Office 2016 (32-bit edition)
Microsoft Office 2013 RT Service Pack 1
Microsoft Word 2016 (64-bit edition)
Microsoft Excel 2013 Service Pack 1 (64-bit editions)
Microsoft Word 2013 RT Service Pack 1
Skype for Business Server 2015 CU11
Microsoft Office 2019 for 32-bit editions
Microsoft Excel 2016 (64-bit edition)
Microsoft Word 2013 Service Pack 1 (64-bit editions)
Microsoft SharePoint Foundation 2013 Service Pack 1
Skype for Business Server 2019 CU5
Microsoft Office 2019 for Mac
Microsoft Excel 2013 RT Service Pack 1
Microsoft Word 2016 (32-bit edition)
Microsoft Office 2019 for 64-bit editions
Microsoft 365 Apps for Enterprise for 32-bit Systems
Microsoft Lync Server 2013 CU10
Microsoft Excel 2016 (32-bit edition)
Microsoft SharePoint Server 2019
Microsoft Office 2013 Service Pack 1 (64-bit editions)
Microsoft 365 Apps for Enterprise for 64-bit Systems
Microsoft Word 2013 Service Pack 1 (32-bit editions)

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-2021-31181
CVE-2021-26421
CVE-2021-26422
CVE-2021-31178
CVE-2021-28455
CVE-2021-26418
CVE-2021-31179
CVE-2021-31180
CVE-2021-28478
CVE-2021-28474
CVE-2021-31172
CVE-2021-31177
CVE-2021-31173
CVE-2021-31176
CVE-2021-31174
CVE-2021-31175
CVE-2021-31171

Impacts

?

ACE

[?]

OSI

[?]

SUI

[?]

Detect date ?	05/11/2021
Severity ?	High
Description	Multiple vulnerabilities were found in Microsoft Office. Malicious users can exploit these vulnerabilities to execute arbitrary code, spoof user interface, obtain sensitive information. Below is a complete list of vulnerabilities: A remote code execution vulnerability in Microsoft SharePoint can be exploited remotely to execute arbitrary code. A spoofing vulnerability in Skype for Business and Lync can be exploited remotely to spoof user interface. A remote code execution vulnerability in Skype for Business and Lync can be exploited remotely to execute arbitrary code. An information disclosure vulnerability in Microsoft Office can be exploited remotely to obtain sensitive information. A remote code execution vulnerability in Microsoft Jet Red Database Engine and Access Connectivity Engine can be exploited remotely to execute arbitrary code. A spoofing vulnerability in Microsoft SharePoint can be exploited remotely to spoof user interface. A remote code execution vulnerability in Microsoft Office can be exploited remotely to execute arbitrary code. A remote code execution vulnerability in Microsoft Office Graphics can be exploited remotely to execute arbitrary code. A remote code execution vulnerability in Microsoft SharePoint Server can be exploited remotely to execute arbitrary code. An information disclosure vulnerability in Microsoft SharePoint Server can be exploited remotely to obtain sensitive information. An information disclosure vulnerability in Microsoft Excel can be exploited remotely to obtain sensitive information. An information disclosure vulnerability in Microsoft SharePoint can be exploited remotely to obtain sensitive information.
Affected products	Microsoft Office Online Server Microsoft SharePoint Enterprise Server 2016 Microsoft Office Web Apps Server 2013 Service Pack 1 Microsoft Office 2013 Service Pack 1 (32-bit editions) Microsoft Excel 2013 Service Pack 1 (32-bit editions) Microsoft Office 2016 (64-bit edition) Microsoft Office 2016 (32-bit edition) Microsoft Office 2013 RT Service Pack 1 Microsoft Word 2016 (64-bit edition) Microsoft Excel 2013 Service Pack 1 (64-bit editions) Microsoft Word 2013 RT Service Pack 1 Skype for Business Server 2015 CU11 Microsoft Office 2019 for 32-bit editions Microsoft Excel 2016 (64-bit edition) Microsoft Word 2013 Service Pack 1 (64-bit editions) Microsoft SharePoint Foundation 2013 Service Pack 1 Skype for Business Server 2019 CU5 Microsoft Office 2019 for Mac Microsoft Excel 2013 RT Service Pack 1 Microsoft Word 2016 (32-bit edition) Microsoft Office 2019 for 64-bit editions Microsoft 365 Apps for Enterprise for 32-bit Systems Microsoft Lync Server 2013 CU10 Microsoft Excel 2016 (32-bit edition) Microsoft SharePoint Server 2019 Microsoft Office 2013 Service Pack 1 (64-bit editions) Microsoft 365 Apps for Enterprise for 64-bit Systems Microsoft Word 2013 Service Pack 1 (32-bit editions)
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-2021-31181 CVE-2021-26421 CVE-2021-26422 CVE-2021-31178 CVE-2021-28455 CVE-2021-26418 CVE-2021-31179 CVE-2021-31180 CVE-2021-28478 CVE-2021-28474 CVE-2021-31172 CVE-2021-31177 CVE-2021-31173 CVE-2021-31176 CVE-2021-31174 CVE-2021-31175 CVE-2021-31171
Impacts ?	ACE [?] OSI [?] SUI [?]
Related products	Microsoft Lync Microsoft Office Microsoft Excel Microsoft Word Microsoft Windows Microsoft Windows Server Microsoft Windows Server 2012 Microsoft Windows 8 Microsoft Windows 7 Microsoft Windows Server 2008 Windows RT Microsoft Lync Server Microsoft Windows 10
CVE-IDS ?	CVE-2021-284555.0Critical CVE-2021-311816.5High CVE-2021-264215.0Critical CVE-2021-264225.0Critical CVE-2021-311785.0Critical CVE-2021-264185.0Critical CVE-2021-311795.0Critical CVE-2021-311805.0Critical CVE-2021-284785.0Critical CVE-2021-284745.0Critical CVE-2021-311725.0Critical CVE-2021-311775.0Critical CVE-2021-311735.0Critical CVE-2021-311765.0Critical CVE-2021-311745.0Critical CVE-2021-311755.0Critical CVE-2021-311715.0Critical
Microsoft official advisories	Microsoft Security Update Guide
KB list	5001914 5001931 5001919 5001917 4493197 5003729 4464542 5001920 5001927 5001923 4493206 5001918 5001916 5001928 5001936 5001925 5001935 4504711 4484527
	Find out the statistics of the vulnerabilities spreading in your region

KLA12175Multiple vulnerabilities in Microsoft Office

KLA12175
Multiple vulnerabilities in Microsoft Office