Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 | 20h2 |
| Microsoft | Windows 11 | - |
| Microsoft | Windows Server 2019 | - |
Related Weaknesses (CWE)
References
- https://github.com/zeroSteiner/metasploit-framework/blob/feat/mod/cve-2022-32230ExploitThird Party Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-32230PatchVendor Advisory
- https://support.microsoft.com/en-us/topic/may-10-2022-kb5013942-os-builds-19042-PatchVendor Advisory
- https://www.rapid7.com/blog/post/2022/06/14/cve-2022-32230-windows-smb-denial-ofExploitThird Party Advisory
- https://github.com/zeroSteiner/metasploit-framework/blob/feat/mod/cve-2022-32230ExploitThird Party Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-32230PatchVendor Advisory
- https://support.microsoft.com/en-us/topic/may-10-2022-kb5013942-os-builds-19042-PatchVendor Advisory
- https://www.rapid7.com/blog/post/2022/06/14/cve-2022-32230-windows-smb-denial-ofExploitThird Party Advisory
FAQ
What is CVE-2022-32230?
CVE-2022-32230 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 nam...
How severe is CVE-2022-32230?
CVE-2022-32230 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-32230?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10, Microsoft Windows 11, Microsoft Windows Server 2019.