Windows 2019 Server getting Invalid signature with Samba 4.7.11
krishna.harathi at storagecraft.com
Tue Jul 14 19:50:45 UTC 2020
Christof - Thanks for pointing to a potential fix!
Rowland - this issue is faced by one of our customers, so would like to know if/when the issue indeed will be fixed by an upgrade. I had a follow-up question to your suggestion, that Christof already answered.
Thanks to both for taking time and responding so quickly!
On 7/14/20, 12:26 PM, "Christof Schmitt" <cs at samba.org> wrote:
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On Tue, Jul 14, 2020 at 06:26:36PM +0000, Krishna Harathi via samba-technical wrote:
> I am continuing to investigate why a client is getting an “invalid signature” error.
> Sequence of events
> * Smbd generated a STATUS_NETWORK_SESSION_EXPIRED for a read request
> * Client requested for a session (re)setup of the current/existing section (shown below)
> * Smbd responded with STATUS_SUCCESS but response not signed (signature with zeros) (shown below)
> * Windows SMBClient noted the “invalid signature” event (disruptive to client application)
> * Next, there was a new session setup request
> * Followed by smbd response with STATUS_SUCCESS with signature
From a quick search, this could be
Samba 4.9.3 and 4.8.7 have the patches for this bugzilla.
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