1 files changed, 51 insertions, 0 deletions
diff --git a/scripts/smb2-time.nse b/scripts/smb2-time.nse
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--- /dev/null
+++ b/scripts/smb2-time.nse
@@ -0,0 +1,51 @@
+local os = require "os"
+local datetime = require "datetime"
+local smb = require "smb"
+local stdnse = require "stdnse"
+local smb2 = require "smb2"
+
+description = [[
+Attempts to obtain the current system date and the start date of a SMB2 server.
+]]
+
+---
+-- @usage nmap -p445 --script smb2-time <target>
+--
+-- @output
+-- Host script results:
+-- | smb2-time:
+-- |   date: 2017-07-28 03:06:34
+-- |_  start_date: 2017-07-20 09:29:49
+--
+-- @xmloutput
+-- <elem key="date">2017-07-28 03:07:57</elem>
+-- <elem key="start_date">2017-07-20 09:29:49</elem>
+---
+
+author = "Paulino Calderon <calderon()websec.mx>"
+license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
+categories = {"discovery", "safe", "default"}
+
+hostrule = function(host)
+  return smb.get_port(host) ~= nil
+end
+
+action = function(host,port)
+  local smbstate, status
+  local output = stdnse.output_table()
+  status, smbstate = smb.start(host)
+  status = smb2.negotiate_v2(smbstate)
+
+  if status then
+    datetime.record_skew(host, smbstate.time, os.time())
+    stdnse.debug2("SMB2: Date: %s (%s) Start date:%s (%s)",
+                        smbstate['date'], smbstate['time'],
+            smbstate['start_date'], smbstate['start_time'])
+    output.date = smbstate['date']
+    output.start_date = smbstate['start_date']
+    return output
+  else
+    stdnse.debug2("Negotiation failed")
+    return "Protocol negotiation failed (SMB2)"
+  end
+end