dc36f53e04
git-svn-id: https://beef.googlecode.com/svn/trunk@982 b87d56ec-f9c0-11de-8c8a-61c5e9addfc9
102 lines
3.5 KiB
Ruby
102 lines
3.5 KiB
Ruby
module BeEF
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module Core
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module Handlers
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#
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# This class handles connections from zombies to the framework.
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#
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class HookedBrowsers < WEBrick::HTTPServlet::AbstractServlet
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include BeEF::Core::Handlers::Modules::BeEFJS
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include BeEF::Core::Handlers::Modules::Command
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attr_reader :guard
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def initialize(config)
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@guard = Mutex.new
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end
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#
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# This method processes the http requests sent by a zombie to the framework.
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# It will update the database to add or update the current zombie and deploy
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# some command modules or plugins.
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#
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def do_GET(request, response)
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@body = ''
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@params = request.query
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@request = request
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@response = response
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config = BeEF::Core::Configuration.instance
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# check source ip address of browser
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permitted_hooking_subnet = config.get('beef.restrictions.permitted_hooking_subnet')
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target_network = IPAddr.new(permitted_hooking_subnet)
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if not target_network.include?(request.peeraddr[3].to_s)
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BeEF::Core::Logger.instance.register('Target Range', "Attempted hook from out of target range browser (#{request.peeraddr[3]}) rejected.")
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@response.set_error(nil)
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return
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end
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# get zombie if already hooked the framework
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hook_session_id = request.get_hook_session_id()
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hooked_browser = BeEF::Core::Models::HookedBrowser.first(:session => hook_session_id) if not hook_session_id.nil?
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if not hooked_browser # is a new browser so return instructions to set up the hook
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# generate the instructions to hook the browser
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host_name = @request.host # get the host from the HOST attribute in the HTTP header
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raise WEBrick::HTTPStatus::BadRequest, "Invalid host name" if not BeEF::Filters.is_valid_hostname?(host_name)
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build_beefjs!(host_name)
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else # is a known browseer so send instructions
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# record the last poll from the browser
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hooked_browser.lastseen = Time.new.to_i
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# Check for a change in zombie IP and log an event
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if hooked_browser.ip != @request.peeraddr[3].to_s
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BeEF::Core::Logger.instance.register('Zombie',"IP address has changed from #{hooked_browser.ip} to #{@request.peeraddr[3].to_s}","#{hooked_browser.id}")
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hooked_browser.ip = @request.peeraddr[3].to_s
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end
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hooked_browser.count!
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hooked_browser.save
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# add all availible command module instructions to the response
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zombie_commands = BeEF::Core::Models::Command.all(:hooked_browser_id => hooked_browser.id, :instructions_sent => false)
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zombie_commands.each{|command| add_command_instructions(command, hooked_browser)}
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#
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# We dynamically get the list of all browser hook handler using the API and register them
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#
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BeEF::API.fire(BeEF::API::Server::Hook, :pre_hook_send, hooked_browser, @body, @params, @request, @response)
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end
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# set response headers and body
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response.set_no_cache
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response.header['Content-Type'] = 'text/javascript'
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response.header['Access-Control-Allow-Origin'] = '*'
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response.header['Access-Control-Allow-Methods'] = 'POST, GET'
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response.body = @body
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end
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alias do_POST do_GET
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private
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# Object representing the HTTP request
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@request
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# Object representing the HTTP response
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@response
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# A string containing the list of BeEF components active in the hooked browser
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@beef_js_cmps
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end
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end
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end
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end
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