SMBv3 FileNormalizedNameInformation NULL Pointer Dereference (Microsoft Windows 10 Version 20H2)
At a glance
- Source
- NVD
- EPSS
- EPSS 7.33 % · percentile 94 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- rapid7
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-476 — NULL Pointer Dereference
References
- https://www.rapid7.com/blog/post/2022/06/14/cve-2022-32230-windows-smb-denial-of-service-vulnerability-fixed/
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-32230
- https://github.com/zeroSteiner/metasploit-framework/blob/feat/mod/cve-2022-32230/modules/auxiliary/dos/smb/smb_filenormalizednameinformation.rb
- 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
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | rapid7 |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · cve@rapid7.com (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2022-53430
- GCVE · GCVE-0-2022-32230
CERT-FR advisories
- CERTFR-2022-AVI-557 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Microsoft · Windows 10 Version 20H2 | affected 19042.1706 < 19042.1706 ; affected 19043.1706 < 19043.1706 ; affected 19044.1706 < 19043.1706 |
| Microsoft · Windows Server Version 20H2 | affected 19042.1706 < 19042.1706 ; affected 19043.1706 < 19043.1706 ; affected 19044.1706 < 19044.1706 |
| Microsoft · Windows 10 Version 21H1 | affected 19042.1706 < 19042.1706 ; affected 19043.1706 < 19043.1706 ; affected 19044.1706 < 19044.1706 |
| Microsoft · Windows 10 Version 21H2 | affected 19042.1706 < 19042.1706 ; affected 19043.1706 < 19043.1706 ; affected 19044.1706 < 19044.1706 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |