Signature check for LOGOFF response

Tom Talpey tom at
Thu Mar 24 15:04:30 UTC 2022

On 3/23/2022 1:29 PM, Enzo Matsumiya wrote:
> Hi Tom,
> On 03/19, Tom Talpey wrote:
>> What server is returning this unsigned response? Assuming it's Windows,
>> that is either a doc bug or (arguably) a server bug, and should be
>> reported before deciding how to address it here.
> It's a NetApp ONTAP 9.5P13. We've identified it's also setting wrong
> signatures on READ responses with STATUS_END_OF_FILE.
> Our tests against Windows Server 2019 showed it to behave ok, so it
> looks like something on NetApp side.

In this case I don't think it is appropriate to apply the suggested
patch. Allowing unsigned or invalidly signed responses will greatly
reduce security. I'll be interested if NetApp provides any information.


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