Vulnerability Monitor

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CVE-2022-32230

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.

Published

2022-06-14T22:15:10.450

Last Modified

2024-11-21T07:05:58.290

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

6.9

Weaknesses

Type: Secondary
CWE-476
Type: Primary
CWE-476

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	microsoft	windows_10	20h2	Yes
Operating System	microsoft	windows_10	21h1	Yes
Operating System	microsoft	windows_10	21h2	Yes
Operating System	microsoft	windows_10	1809	Yes
Operating System	microsoft	windows_11	-	Yes
Operating System	microsoft	windows_server_2019	-	Yes

References

https://github.com/zeroSteiner/metasploit-framework/blob/feat/mod/cve-2022-32230/modules/auxiliary/dos/smb/smb_filenormalizednameinformation.rb Exploit, Third Party Advisory ([email protected])
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-32230 Patch, Vendor Advisory ([email protected])
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 Patch, Vendor Advisory ([email protected])
https://www.rapid7.com/blog/post/2022/06/14/cve-2022-32230-windows-smb-denial-of-service-vulnerability-fixed/ Exploit, Third Party Advisory ([email protected])
https://github.com/zeroSteiner/metasploit-framework/blob/feat/mod/cve-2022-32230/modules/auxiliary/dos/smb/smb_filenormalizednameinformation.rb Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-32230 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
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 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.rapid7.com/blog/post/2022/06/14/cve-2022-32230-windows-smb-denial-of-service-vulnerability-fixed/ Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)