Enforce proper protocol case where necessary

lib/msf/core/exploit/sip.rb

@@ -20,7 +20,7 @@ module Msf
       report_service(
         host: rhost,
         port: rport,
-        proto: proto,
+        proto: proto.downcase,
         name: 'sip'
       )
 
@@ -38,7 +38,7 @@ module Msf
           report_note(
             host: rhost,
             port: rport,
-            proto: proto,
+            proto: proto.downcase,
             type: "sip_#{k}",
             data: v
           )
@@ -57,7 +57,7 @@ module Msf
       src   = "#{shost}:#{datastore['RPORT']}"
 
       data  = "OPTIONS sip:#{datastore['TO']}@#{ip} SIP/2.0\r\n"
-      data << "Via: SIP/2.0/#{proto} #{src};branch=z9hG4bK.#{format('%.8x', rand(0x100000000))};rport;alias\r\n"
+      data << "Via: SIP/2.0/#{proto.upcase} #{src};branch=z9hG4bK.#{format('%.8x', rand(0x100000000))};rport;alias\r\n"
       data << "From: sip:#{suser}@#{src};tag=70c00e8c\r\n"
       data << "To: sip:#{datastore['TO']}@#{ip}\r\n"
       data << "Call-ID: #{rand(0x100000000)}@#{shost}\r\n"

modules/auxiliary/scanner/sip/options.rb

@@ -34,10 +34,10 @@ class Metasploit3 < Msf::Auxiliary
   end
 
   def scan_host(ip)
-    scanner_send(create_probe(ip, 'UDP'), ip, datastore['RPORT'])
+    scanner_send(create_probe(ip, 'udp'), ip, datastore['RPORT'])
   end
 
   def scanner_process(data, shost, _)
-    parse_response(data, shost, 'UDP')
+    parse_response(data, shost, 'udp')
   end
 end

modules/auxiliary/scanner/sip/options_tcp.rb

@@ -32,7 +32,7 @@ class Metasploit3 < Msf::Auxiliary
   def run_host(ip)
     begin
       connect
-      sock.put(create_probe(ip, 'TCP'))
+      sock.put(create_probe(ip, 'tcp'))
       res = sock.get_once(-1, 5)
       parse_response(res, rhost, 'tcp') if res
     rescue ::Interrupt