KLA12226 Multiple vulnerabilities in Microsoft Products (ESU)

Multiple vulnerabilities were found in Microsoft Products (Extended Security Update). Malicious users can exploit these vulnerabilities to obtain sensitive information, spoof user interface, execute arbitrary code, cause denial of service, bypass security restrictions, gain privileges.

Below is a complete list of vulnerabilities:

1. An information disclosure vulnerability in Windows SMB can be exploited remotely to obtain sensitive information.
2. A spoofing vulnerability in Windows Certificate can be exploited remotely to spoof user interface.
3. A remote code execution vulnerability in Windows MSHTML Platform can be exploited remotely to execute arbitrary code.
4. A denial of service vulnerability in Windows DNS Server can be exploited remotely to cause denial of service.
5. A spoofing vulnerability in Windows Installer can be exploited remotely to spoof user interface.
6. A remote code execution vulnerability in Windows Address Book can be exploited remotely to execute arbitrary code.
7. A security feature bypass vulnerability in Windows LSA can be exploited remotely to bypass security restrictions.
8. An elevation of privilege vulnerability in Windows Remote Access Connection Manager can be exploited remotely to gain privileges.
9. A remote code execution vulnerability in Windows DNS Server can be exploited remotely to execute arbitrary code.
10. A denial of service vulnerability in Windows LSA can be exploited remotely to cause denial of service.
11. A security feature bypass vulnerability in Windows HTML Platforms can be exploited remotely to bypass security restrictions.
12. A remote code execution vulnerability in Windows DNS Snap-in can be exploited remotely to execute arbitrary code.
13. A denial of service vulnerability in Windows TCP/IP Driver can be exploited remotely to cause denial of service.
14. An elevation of privilege vulnerability in Windows Kernel can be exploited remotely to gain privileges.
15. An information disclosure vulnerability in GDI+ can be exploited remotely to obtain sensitive information.
16. An information disclosure vulnerability in Windows Key Distribution Center can be exploited remotely to obtain sensitive information.
17. A memory corruption vulnerability in Scripting Engine can be exploited remotely to execute arbitrary code.
18. A security feature bypass vulnerability in Windows Security Account Manager Remote Protocol can be exploited remotely to bypass security restrictions.
19. An information disclosure vulnerability in Windows Remote Access Connection Manager can be exploited remotely to obtain sensitive information.
20. A remote code execution vulnerability in Microsoft Windows Media Foundation can be exploited remotely to execute arbitrary code.
21. An information disclosure vulnerability in Windows Remote Assistance can be exploited remotely to obtain sensitive information.
22. An elevation of privilege vulnerability in Windows GDI can be exploited remotely to gain privileges.
23. An elevation of privilege vulnerability in Win32k can be exploited remotely to gain privileges.
24. A denial of service vulnerability in Bowser.sys can be exploited remotely to cause denial of service.
25. An elevation of privilege vulnerability in Windows Installer can be exploited remotely to gain privileges.
26. A spoofing vulnerability in Windows Authenticode can be exploited remotely to spoof user interface.
27. An information disclosure vulnerability in Windows Kernel Memory can be exploited remotely to obtain sensitive information.
28. An information disclosure vulnerability in Windows GDI can be exploited remotely to obtain sensitive information.

Original advisories

CVE-2021-33783

CVE-2021-34492

CVE-2021-34497

CVE-2021-34442

CVE-2021-34444

CVE-2021-33765

CVE-2021-34504

CVE-2021-33786

CVE-2021-34456

CVE-2021-34494

CVE-2021-33788

CVE-2021-33754

CVE-2021-34446

CVE-2021-33752

CVE-2021-31183

CVE-2021-33750

CVE-2021-33745

CVE-2021-31979

CVE-2021-33756

CVE-2021-34440

CVE-2021-33749

CVE-2021-33764

CVE-2021-34448

CVE-2021-34499

CVE-2021-33757

CVE-2021-34457

CVE-2021-34441

CVE-2021-34507

CVE-2021-33746

CVE-2021-34498

CVE-2021-34516

CVE-2021-34447

CVE-2021-33780

CVE-2021-34476

CVE-2021-34511

CVE-2021-33782

CVE-2021-34514

CVE-2021-34500

CVE-2021-34496

Exploitation

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Microsoft-Windows

Microsoft-Windows-Server

Microsoft-Windows-Server-2012

Microsoft-Windows-8

Microsoft-Windows-7

Microsoft-Windows-Server-2008

Windows-RT

Microsoft-Windows-10

CVE list

CVE-2021-34497 high

CVE-2021-34444 high

CVE-2021-34504 critical

CVE-2021-34456 critical

CVE-2021-33788 critical

CVE-2021-34494 critical

CVE-2021-34446 critical

CVE-2021-31183 critical

CVE-2021-33745 high

CVE-2021-34440 high

CVE-2021-33749 critical

CVE-2021-33764 high

CVE-2021-33757 high

CVE-2021-34441 critical

CVE-2021-34507 high

CVE-2021-34516 critical

CVE-2021-33780 critical

CVE-2021-34476 critical

CVE-2021-34511 critical

CVE-2021-34500 high

CVE-2021-34496 high

CVE-2021-33783 high

CVE-2021-34492 critical

CVE-2021-34442 critical

CVE-2021-33765 high

CVE-2021-33786 critical

CVE-2021-33754 critical

CVE-2021-33752 critical

CVE-2021-33750 critical

CVE-2021-31979 critical

CVE-2021-33756 critical

CVE-2021-34448 high

CVE-2021-34499 high

CVE-2021-34457 high

CVE-2021-33746 critical

CVE-2021-34498 critical

CVE-2021-34447 high

CVE-2021-33782 high

CVE-2021-34514 critical

KB list

5004289

5004307

5004299

5004305

5005563

5010384

5010422

5010403

5010404

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

• ACE

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

• OSI

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

• DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

• SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

• PE

Privilege escalation. Exploitation of vulnerabilities with this impact can lead to performing by abuser actions, which are normally disallowed for current role.

• SUI

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

Affected Products

• Windows 7 for 32-bit Systems Service Pack 1Windows Server 2012 R2 (Server Core installation)Windows Server 2016Windows 10 Version 1909 for x64-based SystemsWindows 10 Version 1909 for 32-bit SystemsWindows Server 2008 R2 for x64-based Systems Service Pack 1Windows 10 Version 21H1 for ARM64-based SystemsWindows 10 Version 2004 for 32-bit SystemsWindows Server 2012Windows RT 8.1Windows 10 Version 1909 for ARM64-based SystemsWindows 10 for 32-bit SystemsWindows 7 for x64-based Systems Service Pack 1Windows 8.1 for x64-based systemsWindows Server 2008 for 32-bit Systems Service Pack 2Windows 10 Version 2004 for x64-based SystemsWindows 10 Version 21H1 for x64-based SystemsWindows Server 2019Windows Server 2019 (Server Core installation)Windows 10 Version 1809 for 32-bit SystemsWindows 10 Version 1607 for x64-based SystemsWindows 10 Version 20H2 for ARM64-based SystemsWindows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)Windows Server 2016 (Server Core installation)Windows 8.1 for 32-bit systemsWindows Server 2012 (Server Core installation)Windows 10 Version 21H1 for 32-bit SystemsWindows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)Windows Server 2012 R2Windows 10 Version 1809 for ARM64-based SystemsWindows 10 Version 2004 for ARM64-based SystemsWindows 10 Version 20H2 for x64-based SystemsWindows 10 Version 1607 for 32-bit SystemsWindows 10 for x64-based SystemsWindows 10 Version 20H2 for 32-bit SystemsWindows Server 2008 for x64-based Systems Service Pack 2Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)Windows Server, version 2004 (Server Core installation)Windows Server, version 20H2 (Server Core Installation)Windows 10 Version 1809 for x64-based Systems