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kasperskyKaspersky LabKLA12138
HistoryApr 13, 2021 - 12:00 a.m.

KLA12138 Multiple vulnerabilities in Microsoft Office

2021-04-1300:00:00
Kaspersky Lab
threats.kaspersky.com
37

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

7.9 High

AI Score

Confidence

High

6.8 Medium

CVSS2

Access Vector

NETWORK

Access 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

Detect date:

04/13/2021

Severity:

High

Description:

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

Affected products:

Microsoft Excel 2013 Service Pack 1 (32-bit editions)
Microsoft Office 2013 Service Pack 1 (32-bit editions)
Microsoft 365 Apps for Enterprise for 32-bit Systems
Microsoft Word 2016 (32-bit edition)
Microsoft Word 2013 RT Service Pack 1
Microsoft Office 2016 (32-bit edition)
Microsoft Word 2013 Service Pack 1 (64-bit editions)
Microsoft Office Online Server
Microsoft Excel 2013 Service Pack 1 (64-bit editions)
Microsoft Outlook 2016 (64-bit edition)
Microsoft Outlook 2013 RT Service Pack 1
Microsoft Outlook 2013 Service Pack 1 (32-bit editions)
Microsoft SharePoint Enterprise Server 2013 Service Pack 1
Microsoft Excel 2016 (64-bit edition)
Microsoft SharePoint Server 2010 Service Pack 2
Microsoft SharePoint Enterprise Server 2016
Microsoft Outlook 2010 Service Pack 2 (64-bit editions)
Microsoft SharePoint Server 2019
Microsoft SharePoint Foundation 2010 Service Pack 2
Microsoft Office 2010 Service Pack 2 (32-bit editions)
Microsoft Office 2016 (64-bit edition)
Microsoft Word 2010 Service Pack 2 (64-bit editions)
Microsoft Office 2010 Service Pack 2 (64-bit editions)
Microsoft 365 Apps for Enterprise for 64-bit Systems
Microsoft Office 2013 RT Service Pack 1
Microsoft Word 2016 (64-bit edition)
Microsoft Outlook 2010 Service Pack 2 (32-bit editions)
Microsoft Office Web Apps 2010 Service Pack 2
Microsoft Office Web Apps Server 2013 Service Pack 1
Microsoft Outlook 2013 Service Pack 1 (64-bit editions)
Microsoft Excel 2016 (32-bit edition)
Microsoft Office 2019 for Mac
Microsoft Excel 2013 RT Service Pack 1
Microsoft Excel 2010 Service Pack 2 (64-bit editions)
Microsoft Office 2019 for 64-bit editions
Microsoft Outlook 2016 (32-bit edition)
Microsoft Word 2013 Service Pack 1 (32-bit editions)
Microsoft Word 2010 Service Pack 2 (32-bit editions)
Microsoft Excel 2010 Service Pack 2 (32-bit editions)
Microsoft Office 2019 for 32-bit editions
Microsoft Office 2013 Service Pack 1 (64-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-2021-28454
CVE-2021-28449
CVE-2021-28456
CVE-2021-28451
CVE-2021-28453
CVE-2021-28450
CVE-2021-28452

Impacts:

ACE

Related products:

Microsoft Office

CVE-IDS:

CVE-2021-284547.8Critical
CVE-2021-284497.8Critical
CVE-2021-284565.5High
CVE-2021-284517.8Critical
CVE-2021-284537.8Critical
CVE-2021-284505.0Warning
CVE-2021-284527.1High

KB list:

4504719
4493215
4504729
4504733
3178643
3178639
4504735
4493198
4493201
4504722
4504709
4493218
4504727
4493208
4504716
4504701
4504714
4504739
4504738
4504712
4504724
3017810
2589361
4493185
4504723
4504726
2553491
4504705
4504715
4504721
4493170

Microsoft official advisories:

References

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

7.9 High

AI Score

Confidence

High

6.8 Medium

CVSS2

Access Vector

NETWORK

Access 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