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a412
2016 Aug 16
1
Document that SMB signing does not work / is not supported without authentication
...with
Wireshark, I noticed that the SMB packets were not actually signed, so
Samba 4 allows mounts, but it silently ignores signing, falling back
to "signing = disabled".
Then I did some more digging in the SMB specification
(http://download.microsoft.com/download/9/5/E/95EF66AF-9026-4BB0-A41D-A4F81802D92C/[MS-SMB2].pdf)
and I found that SMB signing is performed only for authenticated
sessions:
--
3.1.1.1 Global
The following global data is required by both the client and server:
RequireMessageSigning: A Boolean that, if set, indicates that this
node requires that messages MUST be signe...