.NET Broken Authentication Guide: Examples and Prevention

The article provides a comprehensive overview of broken authentication, a term encompassing several vulnerabilities that allow attackers to bypass authentication mechanisms and impersonate users, compromising passwords, keys, session tokens, and other sensitive information. It highlights the importance of robust credential and session management, illustrating common attacks such as password spraying, credential stuffing, session hijacking, and phishing. Targeted at .NET developers, the text outlines strategies to mitigate these vulnerabilities, emphasizing best practices recommended by the Open Web Application Security Project (OWASP), such as secure password storage, enforcing strong password requirements, implementing multifactor authentication, and educating users on phishing risks. The article concludes by advocating for Dynamic Application Security Testing (DAST) from StackHawk to detect vulnerabilities and ensure the security of web applications.