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 insufficient logging of exceptions

Security-related events such as user authentication or enabling and disabling of two-factor authentication (2FA)—when this occurs—must be recorded and kept track of. These events are essential for auditing in order to understand the sequence of events when a security incident happens.

In this recipe, we will fix the insufficient logging of security-related exceptions by utilizing ASP.NET Core's built-in logging provider.

Getting ready

For the recipes of this chapter, we will need a sample Online Banking app.

Open the command shell and download the sample Online Banking app by cloning the ASP.NET-Core-Secure-Coding-Cookbook repository, as follows:

git clone https://github.com/PacktPublishing/ASP.NET-Core-Secure-Coding-Cookbook.git

Run the sample app to verify that there are no build or compile errors. In your command shell, navigate to the sample app folder at \Chapter11\insufficient-logging-exception\before...