Using Aspect Programming to Secure Web Applications

—As the Internet users increase, the need to protect web servers from malicious users has become a priority in many organizations and companies. Writing crosscutting functions in complex software should take advantage of the modularity offered by new software development approaches. With Aspect­Oriented Programming (AOP), separating concerns when designing an application fosters reuse, parameterization and maintenance. In this paper, we design a security aspect called AProSec for detecting SQL injection and Cross Scripting Site (XSS), that are common attacks in web servers. We experimented this aspect with AspectJ language and JBoss AOP. By this experimentation, we show the advantage of runtime platforms such as JBoss AOP for changing security policies at runtime. Finally, we describe related work on security and AOP.