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kasperskyKaspersky LabKLA20157
HistoryJan 10, 2023 - 12:00 a.m.

KLA20157 Multiple vulnerabilities in Microsoft Office

2023-01-1000:00:00
Kaspersky Lab
threats.kaspersky.com
157

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8 High

AI Score

Confidence

High

6.5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

0.007 Low

EPSS

Percentile

80.6%

Detect date:

01/10/2023

Severity:

Critical

Description:

Multiple vulnerabilities were found in Microsoft Office. Malicious users can exploit these vulnerabilities to execute arbitrary code, bypass security restrictions, obtain sensitive information.

Exploitation:

Public exploits exist for this vulnerability.

Affected products:

Microsoft Office LTSC 2021 for 32-bit editions
Microsoft Office LTSC 2021 for 64-bit editions
Microsoft SharePoint Server Subscription Edition
Microsoft SharePoint Enterprise Server 2013 Service Pack 1
Microsoft Visio 2013 Service Pack 1 (32-bit editions)
Microsoft Office LTSC for Mac 2021
Microsoft Visio 2016 (32-bit edition)
Microsoft Visio 2016 (64-bit edition)
Microsoft Office 2019 for 64-bit editions
Microsoft Office 2019 for 32-bit editions
Microsoft SharePoint Foundation 2013 Service Pack 1
Microsoft SharePoint Server 2019
Microsoft 365 Apps for Enterprise for 64-bit Systems
Microsoft Visio 2013 Service Pack 1 (64-bit editions)
Microsoft Office 2019 for Mac
Microsoft 365 Apps for Enterprise for 32-bit Systems
Microsoft SharePoint Enterprise Server 2016

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-2023-21737
CVE-2023-21742
CVE-2023-21744
CVE-2023-21734
CVE-2023-21738
CVE-2023-21735
CVE-2023-21743
CVE-2023-21741
CVE-2023-21736

Impacts:

ACE

Related products:

Microsoft Office

CVE-IDS:

CVE-2023-217377.8Critical
CVE-2023-217428.8Critical
CVE-2023-217448.8Critical
CVE-2023-217347.8Critical
CVE-2023-217387.8Critical
CVE-2023-217357.8Critical
CVE-2023-217435.3High
CVE-2023-217417.1High
CVE-2023-217367.8Critical

KB list:

5002335
5002336
5002329
5002337
5002338
5002332
5002331

Microsoft official advisories:

References

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8 High

AI Score

Confidence

High

6.5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

0.007 Low

EPSS

Percentile

80.6%