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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 the incorrect restrictions of excessive authentication attempts

An adversary will always try to gain access to the system and beat its authentication mechanism. The most prevalent way of doing this is by using compromised credentials, collected from illicit sources, or as simple as having a list of common passwords, which can be found on the web. These attacks can be executed with automation using a crafted script or a tool.

An ASP.NET Core web application must withstand this exploitation by implementing defensive measures. This helps with rejecting excessive authentication attempts and writing secure code.

In this recipe, we will identify the root cause of vulnerabilities in code and mitigate the issue by enabling the lockout feature.

Getting ready

Using Visual Studio Code, open the sample Online Banking app folder at \Chapter03\improper-auth\before\OnlineBankingApp.

Testing the restriction of excessive authentication attempts

Follow these steps:

  1. Navigate...
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