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kasperskyKaspersky LabKLA12387
HistoryDec 14, 2021 - 12:00 a.m.

KLA12387 Multiple vulnerabilities in Microsoft Windows

2021-12-1400:00:00
Kaspersky Lab
threats.kaspersky.com
49

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.8 High

AI Score

Confidence

High

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

Detect date:

12/14/2021

Severity:

High

Description:

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

Exploitation:

Public exploits exist for this vulnerability.

Affected products:

Windows Server, version 20H2 (Server Core Installation)
Windows 11 for x64-based Systems
Windows 10 Version 2004 for 32-bit Systems
Windows Server 2022
Windows 8.1 for x64-based systems
Windows Server, version 2004 (Server Core installation)
Windows 10 for 32-bit Systems
Windows 7 for x64-based Systems Service Pack 1
Windows 10 Version 21H2 for 32-bit Systems
Windows 7 for 32-bit Systems Service Pack 1
Windows Server 2022 (Server Core installation)
Windows 10 Version 1809 for x64-based Systems
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Server 2008 for x64-based Systems Service Pack 2
Windows 10 Version 1607 for x64-based Systems
Windows 10 Version 21H1 for ARM64-based Systems
Windows 8.1 for 32-bit systems
Windows RT 8.1
Windows 10 Version 1809 for ARM64-based Systems
Windows Server 2016
Windows Server 2019
Windows 10 Version 21H1 for x64-based Systems
Windows 10 Version 1909 for ARM64-based Systems
Windows 10 Version 21H2 for ARM64-based Systems
Windows 10 Version 21H2 for x64-based Systems
Windows 10 Version 20H2 for x64-based Systems
Windows 10 Version 1909 for x64-based Systems
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
Windows Server 2019 (Server Core installation)
Windows 10 Version 20H2 for ARM64-based Systems
Windows 10 Version 20H2 for 32-bit Systems
Windows 10 Version 1909 for 32-bit Systems
Windows Server 2012 R2 (Server Core installation)
Windows 11 for ARM64-based Systems
Windows 10 Version 1607 for 32-bit Systems
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2016 (Server Core installation)
Windows Server 2012 R2
Windows 10 Version 21H1 for 32-bit Systems
Windows 10 Version 2004 for x64-based Systems
Windows Server 2012 (Server Core installation)
Windows 10 Version 2004 for ARM64-based Systems
Windows Server 2012
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows 10 for x64-based Systems
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows 10 Version 1809 for 32-bit Systems

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-2021-43217
CVE-2021-43246
CVE-2021-43231
CVE-2021-43227
CVE-2021-40452
CVE-2021-43216
CVE-2021-43219
CVE-2021-43235
CVE-2021-43223
CVE-2021-43238
CVE-2021-43883
CVE-2021-43229
CVE-2021-43239
CVE-2021-43226
CVE-2021-43232
CVE-2021-43234
CVE-2021-40453
CVE-2021-43215
CVE-2021-43880
CVE-2021-43237
CVE-2021-43893
CVE-2021-43230
CVE-2021-43224
CVE-2021-43247
CVE-2021-43222
CVE-2021-41360
CVE-2021-43244
CVE-2021-43233
CVE-2021-43243
CVE-2021-43228
CVE-2021-43245
CVE-2021-43214
CVE-2021-40441
CVE-2021-43248
CVE-2021-41333
CVE-2021-43236
CVE-2021-43207
CVE-2021-43240

Impacts:

ACE

Related products:

Microsoft Windows

CVE-IDS:

CVE-2021-432179.8Critical
CVE-2021-432465.6High
CVE-2021-432317.8Critical
CVE-2021-432275.5High
CVE-2021-404527.8Critical
CVE-2021-432166.5High
CVE-2021-432197.5Critical
CVE-2021-432355.5High
CVE-2021-432237.8Critical
CVE-2021-432387.8Critical
CVE-2021-438837.8Critical
CVE-2021-432297.8Critical
CVE-2021-432397.8Critical
CVE-2021-432267.8Critical
CVE-2021-432327.8Critical
CVE-2021-432347.8Critical
CVE-2021-404537.8Critical
CVE-2021-432159.8Critical
CVE-2021-438805.5High
CVE-2021-432377.3High
CVE-2021-438937.5Critical
CVE-2021-432307.8Critical
CVE-2021-432245.5High
CVE-2021-432477.8Critical
CVE-2021-432227.5Critical
CVE-2021-413607.8Critical
CVE-2021-432445.5High
CVE-2021-432337.5Critical
CVE-2021-432435.5High
CVE-2021-432287.5Critical
CVE-2021-432457.8Critical
CVE-2021-432149.8Critical
CVE-2021-404417.8Critical
CVE-2021-432487.8Critical
CVE-2021-413337.8Critical
CVE-2021-432367.5Critical
CVE-2021-432077.8Critical
CVE-2021-432407.8Critical

KB list:

5008223
5008215
5008218
5008206
5008212
5008263
5008230
5008207
5008285
5015877
5015874

Microsoft official advisories:

References

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.8 High

AI Score

Confidence

High

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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