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ASP.NET Core 5 Secure Coding Cookbook

You're reading from   ASP.NET Core 5 Secure Coding Cookbook Practical recipes for tackling vulnerabilities in your ASP.NET web applications

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Product type Paperback
Published in Jul 2021
Publisher Packt
ISBN-13 9781801071567
Length 324 pages
Edition 1st Edition
Languages
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Author (1):
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Roman Canlas Roman Canlas
Author Profile Icon Roman Canlas
Roman Canlas
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Toc

Table of Contents (15) Chapters Close

Preface 1. Chapter 1: Secure Coding Fundamentals 2. Chapter 2: Injection Flaws FREE CHAPTER 3. Chapter 3: Broken Authentication 4. Chapter 4: Sensitive Data Exposure 5. Chapter 5: XML External Entities 6. Chapter 6: Broken Access Control 7. Chapter 7: Security Misconfiguration 8. Chapter 8: Cross-Site Scripting 9. Chapter 9: Insecure Deserialization 10. Chapter 10: Using Components with Known Vulnerabilities 11. Chapter 11: Insufficient Logging and Monitoring 12. Chapter 12: Miscellaneous Vulnerabilities 13. Chapter 13: Best Practices 14. Other Books You May Enjoy

Fixing reflected XSS

Reflected cross-site scripting is one type of XSS where a bad actor could inject code as part of the HTTP response. The reflected XSS is non-persistent and not stored in the database, but the attack payload is delivered back to the browser, reflecting the untrusted input.

The reflected XSS vulnerability is possible when output is not encoded and exploited when tricked users click a malicious link containing the XSS payload. In this recipe, we will fix the reflected XSS vulnerability by using the built-in encoding features of the Razor page.

Getting ready

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

Open the command shell and download the sample Online Banking app by cloning the ASP.NET 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...

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