Fix possible port conflict

modules/exploits/linux/http/dlink_command_php_exec_noauth.rb

@@ -77,7 +77,7 @@ class Metasploit3 < Msf::Exploit::Remote
   end
 
   def exploit
-    telnetport = rand(65535)
+    telnetport = rand(32767) + 32768
 
     print_status("#{rhost}:#{rport} - Telnet port used: #{telnetport}")
 

modules/exploits/linux/http/dlink_dir300_exec_telnet.rb

@@ -129,7 +129,7 @@ class Metasploit3 < Msf::Exploit::Remote
   end
 
   def exploit_telnet
-    telnetport = rand(65535)
+    telnetport = rand(32767) + 32768
 
     print_status("#{rhost}:#{rport} - Telnetport: #{telnetport}")
 

modules/exploits/linux/http/dlink_upnp_exec_noauth_telnetd.rb

@@ -76,9 +76,9 @@ class Metasploit3 < Msf::Exploit::Remote
 
   def exploit
     @new_portmapping_descr = rand_text_alpha(8)
-    @new_external_port = rand(65535)
-    @new_internal_port = rand(65535)
-    telnetport = rand(65535)
+    @new_external_port = rand(32767) + 32768
+    @new_internal_port = rand(32767) + 32768
+    telnetport = rand(32767) + 32768
 
     vprint_status("#{rhost}:#{rport} - Telnetport: #{telnetport}")