Anyone seen SMB2 signing issues with Hitachi HNAS?

Richard Sharpe realrichardsharpe at
Wed Feb 26 16:13:43 UTC 2020

Hi folks,

Seeing a problem with a Hitachi HNAS (ex Bluearc) with SMB2 signing.

Tried connecting with smbclient and on the Session Setup response,
which is signed we exit with "Bad SMB2 signature for message".

I tested against a Windows 2012 DC and a capture shows that the DC is
also signing the SMB2 Session Setup response and smbclient has no
problems with it.

Is this something broken with the HNAS?

Richard Sharpe

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