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KLA12388
Multiple vulnerabilities in Microsoft Products (ESU)

Updated: 03/21/2024
Detect date
?
12/14/2021
Severity
?
Critical
Description

Multiple vulnerabilities were found in Microsoft Products (Extended Security Update). Malicious users can exploit these vulnerabilities to execute arbitrary code, obtain sensitive information, gain privileges.

Below is a complete list of vulnerabilities:

  1. A remote code execution vulnerability in Windows Encrypting File System (EFS) can be exploited remotely to execute arbitrary code.
  2. An information disclosure vulnerability in Microsoft Local Security Authority Server (lsasrv) can be exploited remotely to obtain sensitive information.
  3. An elevation of privilege vulnerability in Windows Remote Access Connection Manager can be exploited remotely to gain privileges.
  4. An elevation of privilege vulnerability in Windows Remote Access can be exploited remotely to gain privileges.
  5. An elevation of privilege vulnerability in Windows Installer can be exploited remotely to gain privileges.
  6. An elevation of privilege vulnerability in Windows NTFS can be exploited remotely to gain privileges.
  7. An elevation of privilege vulnerability in Windows Common Log File System Driver can be exploited remotely to gain privileges.
  8. A remote code execution vulnerability in Windows Fax Service can be exploited remotely to execute arbitrary code.
  9. A memory corruption vulnerability in iSNS Server can be exploited remotely to execute arbitrary code.
  10. An elevation of privilege vulnerability in Windows Encrypting File System (EFS) can be exploited remotely to gain privileges.
  11. An information disclosure vulnerability in Windows Common Log File System Driver can be exploited remotely to obtain sensitive information.
  12. An information disclosure vulnerability in Microsoft Message Queuing can be exploited remotely to obtain sensitive information.
  13. A remote code execution vulnerability in Remote Desktop Client can be exploited remotely to execute arbitrary code.
  14. An elevation of privilege vulnerability in Windows Digital TV Tuner can be exploited remotely to gain privileges.
  15. An elevation of privilege vulnerability in Windows Media Center can be exploited remotely to gain privileges.
  16. An elevation of privilege vulnerability in Windows Print Spooler can be exploited remotely to gain privileges.
  17. A remote code execution vulnerability in Windows Event Tracing can be exploited remotely to execute arbitrary code.
  18. An elevation of privilege vulnerability in Windows Digital Media Receiver can be exploited remotely to gain privileges.
Exploitation

Public exploits exist for this vulnerability.

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

Affected products

Windows 7 for x64-based Systems Service Pack 1
Windows 7 for 32-bit Systems Service Pack 1
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 Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
Windows Server 2012 R2 (Server Core installation)
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2012 R2
Windows Server 2012 (Server Core installation)
Windows Server 2012
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1

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-2021-43216
CVE-2021-43223
CVE-2021-43238
CVE-2021-43883
CVE-2021-43229
CVE-2021-43226
CVE-2021-43234
CVE-2021-43215
CVE-2021-43893
CVE-2021-43230
CVE-2021-43224
CVE-2021-43222
CVE-2021-43233
CVE-2021-43245
CVE-2021-40441
CVE-2021-41333
CVE-2021-43236
CVE-2021-43207
CVE-2021-43232
CVE-2021-43248

Impacts
?
ACE 
[?]

OSI 
[?]

PE 
[?]
Related products
Microsoft Windows
Microsoft Windows Server
Microsoft Windows Server 2012
Microsoft Windows 7
Microsoft Windows Server 2008
CVE-IDS
?
CVE-2021-432179.8Critical
CVE-2021-432166.5High
CVE-2021-432237.8Critical
CVE-2021-432387.8Critical
CVE-2021-438837.8Critical
CVE-2021-432297.8Critical
CVE-2021-432267.8Critical
CVE-2021-432327.8Critical
CVE-2021-432347.8Critical
CVE-2021-432159.8Critical
CVE-2021-438937.5Critical
CVE-2021-432307.8Critical
CVE-2021-432245.5High
CVE-2021-432227.5Critical
CVE-2021-432337.5Critical
CVE-2021-432457.8Critical
CVE-2021-404417.8Critical
CVE-2021-432487.8Critical
CVE-2021-413337.8Critical
CVE-2021-432367.5Critical
CVE-2021-432077.8Critical
KB list

5008263
5008277
5008285
5008255
5008274
5008244
5008282
5008271
5015875
5015863
5015877
5015874
5015862
5015861

Microsoft official advisories
Microsoft Security Update Guide
Find out the statistics of the vulnerabilities spreading in your region