KLA12069
Multiple vulnerabilities in Microsoft Office

Updated: 02/16/2021
Detect date
?
02/09/2021
Severity
?
High
Description

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

Below is a complete list of vulnerabilities:

  1. A remote code execution vulnerability in Microsoft SharePoint can be exploited remotely to execute arbitrary code.
  2. A remote code execution vulnerability in Microsoft Excel can be exploited remotely to execute arbitrary code.
  3. A remote code execution vulnerability in Microsoft SharePoint Server can be exploited remotely to execute arbitrary code.
  4. A spoofing vulnerability in Skype for Business and Lync can be exploited remotely to spoof user interface.
  5. A denial of service vulnerability in Skype for Business and Lync can be exploited remotely to cause denial of service.
  6. An information disclosure vulnerability in Microsoft SharePoint can be exploited remotely to obtain sensitive information.
  7. A spoofing vulnerability in Microsoft SharePoint can be exploited remotely to spoof user interface.
  8. An information disclosure vulnerability in Microsoft Teams iOS can be exploited remotely to obtain sensitive information.
Affected products

Skype for Business Server 2019 CU2
Microsoft Excel 2010 Service Pack 2 (64-bit editions)
Microsoft Excel 2013 Service Pack 1 (64-bit editions)
Microsoft Lync Server 2013
Microsoft SharePoint Server 2019
Microsoft Excel 2013 RT Service Pack 1
Microsoft SharePoint Foundation 2013 Service Pack 1
Microsoft Excel 2016 (32-bit edition)
Microsoft 365 Apps for Enterprise for 32-bit Systems
Microsoft SharePoint Foundation 2010 Service Pack 2
Microsoft Office 2019 for 64-bit editions
Microsoft Office Online Server
Microsoft Teams for iOS
Microsoft Excel 2016 (64-bit edition)
Microsoft Office Web Apps Server 2013 Service Pack 1
Microsoft Office 2019 for 32-bit editions
Microsoft Excel 2013 Service Pack 1 (32-bit editions)
Skype for Business Server 2015 CU 8
Microsoft SharePoint Enterprise Server 2016
Microsoft Excel 2010 Service Pack 2 (32-bit editions)
Office Online Server
Microsoft 365 Apps for Enterprise for 64-bit Systems
Microsoft Office 2019 for Mac

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-2021-24066
CVE-2021-24069
CVE-2021-24072
CVE-2021-24073
CVE-2021-24067
CVE-2021-24070
CVE-2021-24099
CVE-2021-24071
CVE-2021-1726
CVE-2021-24068
CVE-2021-24114

Impacts
?
ACE 
[?]

OSI 
[?]

DoS 
[?]

SUI 
[?]
Related products
Microsoft Lync
Microsoft Office
Microsoft Excel
Microsoft Lync Server
CVE-IDS
?
CVE-2021-240660.0Unknown
CVE-2021-240690.0Unknown
CVE-2021-240720.0Unknown
CVE-2021-240730.0Unknown
CVE-2021-240670.0Unknown
CVE-2021-240700.0Unknown
CVE-2021-240990.0Unknown
CVE-2021-240710.0Unknown
CVE-2021-17260.0Unknown
CVE-2021-240680.0Unknown
CVE-2021-241140.0Unknown
KB list

5000675
4493204
4493210
5000688
4493222
4493194
4493195
4493211
4493192
4493196
4493223