Defend Against Cross-Site Scripting Using The HTML Encode Shortcuts. The .NET 4.0 & 4.5 frameworks introduced new syntax shortcuts to HTML encode dynamic content being rendered to the browser. These shortcuts provide an easy way to protect against Cross-Site Scripting (XSS) attacks in the newer versions of the .NET framework.

WhatWorks in AppSec: ASP.NET Defend Against Cross-Site Scripting Using The HTML Encode Shortcuts is an article written bij SANS Institute instructor Eric Johnson for DEV544: Secure Coding in .NET: Developing Defensible Applications.

ASP.NET and the .NET framework have provided web developers with tools that allow them an unprecedented degree of flexibility and productivity. However, these sophisticated tools make it easier than ever to miss the little details that allow security vulnerabilities to creep into an application. Since ASP.NET 2.0, Microsoft has done a fantastic job of integrating security into the ASP.NET framework, but the responsibility is still on application developers to understand the limitations of the framework and ensure that their own code is secure.

Have you ever wondered if the built-in ASP.NET validation is effective? Have you been concerned that web services might be introducing unexamined security issues into your application? Should you feel uneasy relying solely on the security controls built into the ASP.NET framework? The Secure Coding in .NET course will help students leverage built-in and custom defensivie technologies to integrate security into their applications.

Secure Coding in .NET: Developing Defensible Applications.

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