Book Image

ASP.NET Core 5 Secure Coding Cookbook

By : Roman Canlas
Book Image

ASP.NET Core 5 Secure Coding Cookbook

By: Roman Canlas

Overview of this book

ASP.NET Core developers are often presented with security test results showing the vulnerabilities found in their web apps. While the report may provide some high-level fix suggestions, it does not specify the exact steps that you need to take to resolve or fix weaknesses discovered by these tests. In ASP.NET Secure Coding Cookbook, you’ll start by learning the fundamental concepts of secure coding and then gradually progress to identifying common web app vulnerabilities in code. As you progress, you’ll cover recipes for fixing security misconfigurations in ASP.NET Core web apps. The book further demonstrates how you can resolve different types of Cross-Site Scripting. A dedicated section also takes you through fixing miscellaneous vulnerabilities that are no longer in the OWASP Top 10 list. This book features a recipe-style format, with each recipe containing sample unsecure code that presents the problem and corresponding solutions to eliminate the security bug. You’ll be able to follow along with each step of the exercise and use the accompanying sample ASP.NET Core solution to practice writing secure code. By the end of this book, you’ll be able to identify unsecure code causing different security flaws in ASP.NET Core web apps and you’ll have gained hands-on experience in removing vulnerabilities and security defects from your code.
Table of Contents (15 chapters)

Fixing a lack of security monitoring

Monitoring allows us to actively observe events that occur in our ASP.NET Core web applications. Missing out on incidents as they happen in real time can lead to an attacker causing more damage as each minute goes by. Developers must enable monitoring in their ASP.NET Core web applications to have early preventive detection.

In this recipe, we will fix a lack of security monitoring in our sample Online Banking web app by implementing Azure Application Insights.

How to do it…

Let's take a look at the steps for this recipe:

  1. From the starting exercise folder, launch VS Code by typing the following command:
    code .
  2. Navigate to Terminal | New Terminal in the menu or do this by simply pressing Ctrl + Shift + ' in VS Code.
  3. Install the Application Insights software development kit (SDK) by running the following command in the VS Code terminal:
    dotnet add package Microsoft.ApplicationInsights.AspNetCore
  4. Open Startup...