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Kaspersky LabKLA12201

HistoryJun 08, 2021 - 12:00 a.m.

KLA12201 Multiple vulnerabilities in Microsoft Office

2021-06-0800:00:00

Kaspersky Lab

threats.kaspersky.com

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.3 High

AI Score

Confidence

High

0.089 Low

EPSS

Percentile

94.6%

JSON

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 Office Graphics can be exploited remotely to execute arbitrary code.
A remote code execution vulnerability in Microsoft Outlook 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.
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.

Original advisories

Related products

Microsoft-Office

Microsoft-Outlook

Microsoft-Excel

CVE list

CVE-2021-31940 critical

CVE-2021-31949 high

CVE-2021-26420 high

CVE-2021-31948 critical

CVE-2021-31966 high

CVE-2021-31939 critical

CVE-2021-31965 high

CVE-2021-31941 critical

CVE-2021-31963 high

CVE-2021-31964 critical

CVE-2021-31950 critical

KB list

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)

Impacts

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

Spoof user interface. Exploitation of vulnerabilities with this impact can lead to changes in user interface to beguile user into inaccurate behavior.

Affected Products

Microsoft SharePoint Enterprise Server 2016Microsoft Office Web Apps Server 2013 Service Pack 1Microsoft 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 Outlook 2013 Service Pack 1 (64-bit editions)Microsoft Outlook 2016 (64-bit edition)Microsoft Outlook 2013 Service Pack 1 (32-bit editions)Microsoft Office 2013 RT Service Pack 1Microsoft Excel 2013 Service Pack 1 (64-bit editions)Microsoft Office 2019 for 32-bit editionsMicrosoft Excel 2016 (64-bit edition)Microsoft SharePoint Foundation 2013 Service Pack 1Microsoft Office 2019 for MacMicrosoft Excel 2013 RT Service Pack 1Microsoft Outlook 2016 (32-bit edition)Microsoft Office 2019 for 64-bit editionsMicrosoft 365 Apps for Enterprise for 32-bit SystemsMicrosoft Excel 2016 (32-bit edition)Microsoft SharePoint Enterprise Server 2013 Service Pack 1Microsoft SharePoint Server 2019Microsoft Office 2013 Service Pack 1 (64-bit editions)Microsoft Outlook 2013 RT Service Pack 1Microsoft 365 Apps for Enterprise for 64-bit SystemsOffice Online Server