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 Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Msft | — | 2022-05 Cumulative Update for Microsoft Windows 10, version 21H1 (KB5013942)2022-05 Cumulative Update for Windows Server, version 20H2 for x64-based Systems (KB5013942)2022-05 Cumulative Update for Microsoft Windows 10, version 20H2 (KB5013942)2022-05 Cumulative Update for Microsoft Windows Server 2019, version 1809 (KB5013941)2022-05 Cumulative Update for Microsoft Windows 10, version 21H2 (KB5013942)2022-05 Cumulative Update for Microsoft Windows 10, version 1809 (KB5013945)2022-05 Cumulative Update for Microsoft Windows 11, version 21H2 (KB5013943)2022-05 Cumulative Update for Microsoft Windows 10, version 1809 (KB5013941) | Jun 14, 2022 | Jun 14, 2022 |
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