98 lines
2.7 KiB
Ruby
98 lines
2.7 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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require 'rex/proto/kademlia'
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class Metasploit3 < Msf::Auxiliary
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include Msf::Auxiliary::Report
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include Msf::Auxiliary::UDPScanner
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include Rex::Proto::Kademlia
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def initialize(info = {})
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super(
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update_info(
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info,
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'Name' => 'Gather Kademlia Server Information',
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'Description' => %q(
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This module uses the Kademlia BOOTSTRAP and PING messages to identify
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and extract information from Kademlia speaking UDP endpoints,
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typically belonging to eMule/eDonkey/BitTorrent servers or other P2P
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applications.
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),
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'Author' => 'Jon Hart <jon_hart[at]rapid7.com>',
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'References' =>
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[
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# There are lots of academic papers on the protocol but they tend to lack usable
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# protocol details. This is the best I've found
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['URL', 'http://gbmaster.wordpress.com/2013/06/16/botnets-surrounding-us-sending-kademlia2_bootstrap_req-kademlia2_hello_req-and-their-strict-cousins/#more-125']
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],
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'License' => MSF_LICENSE,
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'Actions' => [
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['BOOTSTRAP', 'Description' => 'Use a Kademlia2 BOOTSTRAP'],
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['PING', 'Description' => 'Use a Kademlia2 PING']
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],
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'DefaultAction' => 'BOOTSTRAP'
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)
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)
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register_options(
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[
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Opt::RPORT(4672)
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], self.class)
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end
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def build_probe
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@probe ||= case action.name
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when 'BOOTSTRAP'
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bootstrap
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when 'PING'
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ping
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end
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end
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def scanner_process(response, src_host, src_port)
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return if response.blank?
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peer = "#{src_host}:#{src_port}"
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case action.name
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when 'BOOTSTRAP'
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peer_id, tcp_port, version, peers = decode_bootstrap_res(response)
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info = {
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peer_id: peer_id,
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tcp_port: tcp_port,
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version: version,
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peers: peers
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}
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if datastore['VERBOSE']
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else
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print_good("#{peer} ID #{peer_id}, TCP port #{tcp_port}, version #{version}, #{peers.size} peers")
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end
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when 'PING'
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udp_port = decode_pong(response)
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print_good("#{peer} PONG")
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# udp_port should match the port we contacted it from. TODO: validate this?
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info = { udp_port: udp_port }
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end
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return unless info
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@results[src_host] ||= []
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@results[src_host] << info
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end
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def scanner_postscan(_batch)
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@results.each_pair do |host, info|
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report_host(host: host)
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report_service(
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host: host,
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proto: 'udp',
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port: rport,
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name: 'Kademlia',
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info: info
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)
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end
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end
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end
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