Land rapid7#3490, @Meatballs1 tns listener verbose output

Author: firefart

modules/auxiliary/scanner/oracle/tnslsnr_version.rb

@@ -41,15 +41,22 @@ def run_host(ip)
 
       data = sock.get_once
 
-        if ( data and data =~ /\\*.TNSLSNR for (.*)/ )
+        if ( data && data =~ /\\*.TNSLSNR for (.*)/ )
           ora_version = data.match(/\\*.TNSLSNR for (.*)/)[1]
           report_service(
-            :host	=> ip,
-            :port	=> datastore['RPORT'],
-            :name   => "oracle",
-            :info   => ora_version
+            :host => ip,
+            :port => datastore['RPORT'],
+            :name => "oracle",
+            :info => ora_version
           )
           print_good("#{ip}:#{datastore['RPORT']} Oracle - Version: " + ora_version)
+        elsif ( data && data =~ /\(ERR=(\d+)\)/ )
+          case $1.to_i
+          when 1189
+            print_error( "#{ip}:#{datastore['RPORT']} Oracle - Version: Unknown - Error code #{$1} - The listener could not authenticate the user")
+          else
+            print_error( "#{ip}:#{datastore['RPORT']} Oracle - Version: Unknown - Error code #{$1}")
+          end
         else
           print_error( "#{ip}:#{datastore['RPORT']} Oracle - Version: Unknown")
         end