Set the server challenge key

Author: egypt

lib/rex/proto/smb/client.rb

@@ -875,7 +875,6 @@ def session_setup_with_ntlmssp(user = '', pass = '', domain = '', name = nil, do
 
     ack = self.smb_recv_parse(CONST::SMB_COM_SESSION_SETUP_ANDX, true)
 
-
     # The server doesn't know about NTLM_NEGOTIATE
     if (ack['Payload']['SMB'].v['ErrorClass'] == 0x00020002)
       return session_setup_no_ntlmssp(user, pass, domain)
@@ -906,6 +905,9 @@ def session_setup_with_ntlmssp(user = '', pass = '', domain = '', name = nil, do
     type3_blob = type3.serialize
     self.signing_key = @ntlm_client.session_key
 
+    # Ugh, it's private
+    self.challenge_key = @ntlm_client.session.send(:server_challenge)
+
     pkt = CONST::SMB_SETUP_NTLMV2_PKT.make_struct
     self.smb_defaults(pkt['Payload']['SMB'])