CVE-2022-32230

 

Published at: - 15-06-2022 12:15

Last modified: - 22-11-2022 05:52

Total changes: - 7

Description

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.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-32230
• https://www.rapid7.com/blog/post/2022/06/14/cve-2022-32230-windows-smb-denial-of-service-vulnerability-fixed/
• 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
• https://github.com/zeroSteiner/metasploit-framework/blob/feat/mod/cve-2022-32230/modules/auxiliary/dos/smb/smb_filenormalizednameinformation.rb

 

Keywords

NVD

 

CVE-2022-32230

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures