CVE-2022-32230

SMBv3 FileNormalizedNameInformation NULL Pointer Dereference

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Microsoft Windows SMBv3 suffers from a null pointer dereference in versions of Windows prior to the April, 2022 patch set. By sending a malformed FileNormalizedNameInformation SMBv3 request over a named pipe, an attacker can cause a Blue Screen of Death (BSOD) crash of the Windows kernel. For most systems, this attack requires authentication, except in the special case of Windows Domain Controllers, where unauthenticated users can always open named pipes as long as they can establish an SMB session. Typically, after the BSOD, the victim SMBv3 server will reboot.

Microsoft Windows SMBv3, sufre una desreferencia de puntero null en las versiones de Windows anteriores al conjunto de parches de abril de 2022. Al enviar una petición SMBv3 FileNormalizedNameInformation malformada a través de una tubería con nombre, un atacante puede causar un bloqueo de Pantalla Azul de la Muerte (BSOD) del kernel de Windows. Para la mayoría de los sistemas, este ataque requiere autenticación, excepto en el caso especial de los controladores de dominio de Windows, donde los usuarios no autenticados siempre pueden abrir tuberías con nombre mientras puedan establecer una sesión SMB. Normalmente, tras el BSOD, el servidor SMBv3 víctima es reiniciado

*Credits: Spencer McIntyre of Rapid7

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-06-01 CVE Reserved
2022-06-14 CVE Published
2024-09-05 EPSS Updated
2024-09-16 CVE Updated
2024-09-16 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (4)

URL	Tag	Source

URL	Date	SRC
https://github.com/zeroSteiner/metasploit-framework/blob/feat/mod/cve-2022-32230/modules/auxiliary/dos/smb/smb_filenormalizednameinformation.rb	2024-09-16
https://www.rapid7.com/blog/post/2022/06/14/cve-2022-32230-windows-smb-denial-of-service-vulnerability-fixed	2024-09-16

URL	Date	SRC
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-32230	2022-06-23
https://support.microsoft.com/en-us/topic/may-10-2022-kb5013942-os-builds-19042-1706-19043-1706-and-19044-1706-60b51119-85be-4a34-9e21-8954f6749504	2022-06-23

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Windows 10 Search vendor "Microsoft" for product "Windows 10"				20h2 Search vendor "Microsoft" for product "Windows 10" and version "20h2"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 10 Search vendor "Microsoft" for product "Windows 10"				21h1 Search vendor "Microsoft" for product "Windows 10" and version "21h1"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 10 Search vendor "Microsoft" for product "Windows 10"				21h2 Search vendor "Microsoft" for product "Windows 10" and version "21h2"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 10 Search vendor "Microsoft" for product "Windows 10"				1809 Search vendor "Microsoft" for product "Windows 10" and version "1809"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 11 Search vendor "Microsoft" for product "Windows 11"				-		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2019 Search vendor "Microsoft" for product "Windows Server 2019"				-		-		Affected