Kaspersky Threats

Detect date

?

07/01/2021

Severity

?

Critical

Description

Critical vulnerability was found in Windows Print Spooler. Malicious users can exploit this vulnerability to execute arbitrary code.

Exploitation

The following public exploits exists for this vulnerability:

https://github.com/byt3bl33d3r/ItWasAllADream

https://github.com/cube0x0/CVE-2021-1675

https://github.com/JohnHammond/CVE-2021-34527

Affected products

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

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-2021-34527

Impacts

?

ACE

[?]

Detect date ?	07/01/2021
Severity ?	Critical
Description	Critical vulnerability was found in Windows Print Spooler. Malicious users can exploit this vulnerability to execute arbitrary code.
Exploitation	The following public exploits exists for this vulnerability: https://github.com/byt3bl33d3r/ItWasAllADream https://github.com/cube0x0/CVE-2021-1675 https://github.com/JohnHammond/CVE-2021-34527
Affected products	Windows 7 for 32-bit Systems Service Pack 1 Windows Server 2012 R2 (Server Core installation) Windows Server 2016 Windows 10 Version 1909 for x64-based Systems Windows 10 Version 1909 for 32-bit Systems Windows Server 2008 R2 for x64-based Systems Service Pack 1 Windows 10 Version 21H1 for ARM64-based Systems Windows 10 Version 2004 for 32-bit Systems Windows Server 2012 Windows RT 8.1 Windows 10 Version 1909 for ARM64-based Systems Windows 10 for 32-bit Systems Windows 7 for x64-based Systems Service Pack 1 Windows 8.1 for x64-based systems Windows Server 2008 for 32-bit Systems Service Pack 2 Windows 10 Version 2004 for x64-based Systems Windows 10 Version 21H1 for x64-based Systems Windows Server 2019 Windows Server 2019 (Server Core installation) Windows 10 Version 1809 for 32-bit Systems Windows 10 Version 1607 for x64-based Systems Windows 10 Version 20H2 for ARM64-based Systems Windows 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 systems Windows Server 2012 (Server Core installation) Windows 10 Version 21H1 for 32-bit Systems Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) Windows Server 2012 R2 Windows 10 Version 1809 for ARM64-based Systems Windows 10 Version 2004 for ARM64-based Systems Windows 10 Version 20H2 for x64-based Systems Windows 10 Version 1607 for 32-bit Systems Windows 10 for x64-based Systems Windows 10 Version 20H2 for 32-bit Systems Windows Server 2008 for x64-based Systems Service Pack 2 Windows 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
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-2021-34527
Impacts ?	ACE [?]
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-IDS ?	CVE-2021-345270.0Unknown
KB list	5004948 5004955 5004945 5004959 5004946 5004958 5004954 5004953 5004950 5004951 5004956 5004960 5004947
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KLA12213Critical vulnerability in Windows Print Spooler

KLA12213
Critical vulnerability in Windows Print Spooler