A Study on web Applications & Protection against Vulnerabilities

Web applications are widely adopted and their correct functioning is mission critical for many businesses. Online banking, emails, eshopping, has become an integral part of today’s life. Vulnerabilities in web application can lead to a variety of erroneous behavior at dynamic run time. We encounter the problem of forceful browsing in many web applications, username enumeration can help an attacker who attempts to use guessable passwords, such as test/test, admin/admin, guest/guest, and so on. These accounts are often created by developers for testing purposes, and many times the accounts are never disabled or the developer forgets to change the password, hacking reduces the performance or function of the application, further more, the modified system itself becomes a constraint to counter newer types of vulnerabilities that may crop up from time to time. Hence, the best solution would be to finds the steps to solve that are web-based (firewall) independent for protecting against vulnerabilities in web applications. In our work algorithm is to analyze vulnerabilities that are caused by breaking of the data dependency using problem which work efficient with existing one.