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KLA12389
Multiple vulnerabilities in Microsoft Office

Updated: 01/25/2024
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:

  1. An elevation of privilege vulnerability in Microsoft Jet Red Database Engine and Access Connectivity Engine can be exploited remotely to gain privileges.
  2. A remote code execution vulnerability in Microsoft Office Graphics can be exploited remotely to execute arbitrary code.
  3. A spoofing vulnerability in Microsoft Office Trust Center can be exploited remotely to spoof user interface.
  4. A spoofing vulnerability in Microsoft SharePoint Server can be exploited remotely to spoof user interface.
  5. A remote code execution vulnerability in Microsoft SharePoint Server can be exploited remotely to execute arbitrary code.
  6. An information disclosure vulnerability in Visual Basic for Applications can be exploited remotely to obtain sensitive information.
  7. A remote code execution vulnerability in Microsoft Excel can be exploited remotely to execute arbitrary code.
  8. 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
?
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