89 lines
2.3 KiB
Ruby
89 lines
2.3 KiB
Ruby
##
|
|
# This module requires Metasploit: http://metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
require 'msf/core'
|
|
|
|
|
|
class MetasploitModule < Msf::Auxiliary
|
|
|
|
include Msf::Exploit::Remote::Tcp
|
|
include Msf::Auxiliary::Fuzzer
|
|
|
|
def initialize(info = {})
|
|
super(update_info(info,
|
|
'Name' => 'HTTP GET Request URI Fuzzer (Incrementing Lengths)',
|
|
'Description' => %q{
|
|
This module sends a series of HTTP GET request with incrementing URL lengths.
|
|
},
|
|
'Author' => [ 'nullthreat' ],
|
|
'License' => MSF_LICENSE
|
|
))
|
|
register_options([
|
|
Opt::RPORT(80),
|
|
OptInt.new("MAXLENGTH", [true, "The longest string length to try", 16384] ),
|
|
OptString.new("URIBASE", [true, "The base URL to use for the request fuzzer", "/"]),
|
|
OptString.new("VHOST", [false, "The virtual host name to use in requests"])
|
|
], self.class)
|
|
end
|
|
|
|
def do_http_get(uri='',opts={})
|
|
@connected = false
|
|
connect
|
|
@connected = true
|
|
|
|
sock.put("GET #{uri} HTTP/1.1\r\nHost: #{datastore['VHOST'] || rhost}\r\n\r\n")
|
|
sock.get_once(-1, opts[:timeout] || 0.01)
|
|
end
|
|
|
|
def run
|
|
last_str = nil
|
|
last_inp = nil
|
|
last_err = nil
|
|
|
|
pre = make_http_uri_base
|
|
cnt = 0
|
|
|
|
1.upto(datastore['MAXLENGTH'].to_i) do |len|
|
|
cnt += 1
|
|
|
|
str = fuzzer_gen_string(len)
|
|
|
|
# XXX: Encode the string or leave it raw? Best to make a new boolean option to enable/disable this
|
|
uri = pre + str
|
|
|
|
if(cnt % 100 == 0)
|
|
print_status("Fuzzing with iteration #{cnt} using string length #{len}")
|
|
end
|
|
|
|
begin
|
|
r = do_http_get(uri,:timeout => 0.25)
|
|
rescue ::Interrupt
|
|
print_status("Exiting on interrupt: iteration #{cnt} using string length #{len}")
|
|
raise $!
|
|
rescue ::Exception => e
|
|
last_err = e
|
|
ensure
|
|
disconnect
|
|
end
|
|
|
|
if(not @connected)
|
|
if(last_str)
|
|
print_status("The service may have crashed: iteration:#{cnt-1} len=#{len} uri=''#{last_str}'' error=#{last_err}")
|
|
else
|
|
print_status("Could not connect to the service: #{last_err}")
|
|
end
|
|
return
|
|
end
|
|
|
|
last_str = str
|
|
last_inp = @last_fuzzer_input
|
|
end
|
|
end
|
|
|
|
def make_http_uri_base
|
|
datastore['URIBASE']
|
|
end
|
|
end
|