4/10/2024 0 Comments Generate random email address java![]() ![]() In fact this is the unique identifier using which attacker can reset the admin account and exploit the application. In our case it is exactly same as the third key from our first code execution. Now, I will introduce first two values into DetermineNextNumber class.Īs you can see after few second, I can get potential value of the seeds as well as next pseudo number. Here are the Three unique keys generated by above code : Now I am going to simulate the process by calling generateToken() function 3 times. Next, we will read the first two unique keys from the email that we have access to and using those keys we can get the third (admin password reset key) key It is enough to ask for reset of the account to which we hold the permits for consecutive two times :Īnd the third time try to reset the admin account. In our password reset functionality it is very simple. It needs two consecutive numbers generated by the given Random class instances. ![]() Here is the sample code to generate the unique key using Random :Įnter fullscreen mode Exit fullscreen mode So it is enough to guess what seed was used to be able to generate the next token on our computer. The seed can be defined by the user or like in our case set automatically by java. The Random **class is a pseudo random number generator, that means based on a small amount of information, called **seed, it generates deterministically consecutive pseudo random number. The implementation looks like below ,Įach time someone want to reset the password the generateToken() method is called and the result is saved to the database. Probably using Random function that lets us generate unique sequences. * Now how to generate the unique string? * The server verifies if the unique string is present at the database and if everything is correct you can change the password.Then user opens the mail and click on the link which contains the unique key.If so - it generates a unique string, which is then saved and sent in an email.At this point server checks whether such user exists at the data base or not.The user provides an email address associated with the account on the website.Password reset functionality usually works more or less like below: _Let me explain using a real-world example: **_Įvery service has login mechanism also they have option to reset the password,
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