Web Application Security

THM Room https://tryhackme.com/room/introwebapplicationsecurity

    • What do you need to access a web application? 

    Answer : Browser

    • You discovered that the login page allows an unlimited number of login attempts without trying to slow down the user or lock the account. What is the category of this security risk?


    Answer : Identification and Authentication Failure

    • You noticed that the username and password are sent in cleartext without encryption. What is the category of this security risk?


    Answer : Cryptographic Failures

    TASK 3 : Practical Example of Web Application Security 

    • Check the other users to discover which user account was used to make the malicious changes and revert them. After reverting the changes, what is the flag that you have received?

     Open the button "view site" :


    I saw i can change the user_id in the "You activity" tab, so i tried numbers from 0 to 11


    When arrived at number 9, i got the user who modified the site :


    Let's revert all the changes :

    Here we go, this is the flag.

    Answer : THM{IDOR_EXPLORED}