.NET, C# and ASP.NET Security Development Training Course

IT Security and Secure Coding Foundations

• Threat modeling basics: STRIDE framework, attack surfaces, and privilege escalation pathways
• Integrating security into the SDLC: shift-left strategies, threat-aware design reviews, and defense-in-depth principles
• Applying the principle of least privilege, defense by contract, and establishing secure default configurations
• Practical Workshop: Mapping a .NET microservice to a threat model and defining architectural controls

Web Application Security in ASP.NET

• Understanding the ASP.NET request pipeline, middleware execution sequence, and filter interception mechanisms
• Mitigating HTTP protocol risks: header injection, request smuggling, and CORS misconfigurations
• Best practices for session management, state persistence, and cookie security
• Implementing secure remote procedure calls and managing external API interactions
• Hands-on Lab: Identifying, exploiting, and remediating vulnerabilities in a middleware chain within a sample ASP.NET application

.NET Security Architecture and Built-in Services

• Exploring the CLR security model: evidence, permissions, and the evolution of Code Access Security (CAS)
• Implementing ASP.NET Core Identity, various authentication schemes, and token-based security (JWT, OAuth2, OpenID Connect)
• Leveraging the Data Protection API for encryption, key rotation, and secure data serialization
• Utilizing .NET cryptographic primitives: RNG, hashing, symmetric/asymmetric encryption, and signature verification
• Hands-on Lab: Implementing secure token issuance, key rotation, and data protection across microservice boundaries

Common Coding Errors, Vulnerabilities, and Mitigation

• Addressing deserialization attacks, ViewState tampering, and string termination/overflow issues in .NET
• Managing configuration drift: web.config/appsettings.json, environment variable exposure, and secret management
• Preventing injection vectors: SQL, command, XSS, and LDAP within C# data access and routing layers
• Eliminating insecure defaults, hardcoding, and improper error handling that leads to information leakage
• Hands-on Lab: Analyzing a vulnerable .NET module, applying secure patterns, and validating fixes using static/dynamic analyzers

Security Testing, Validation, and Continuous Improvement

• Static Application Security Testing (SAST): Integrating Roslyn analyzers, Security Code Scan, and CI/CD pipelines
• Dynamic Application Security Testing (DAST): Using OWASP ZAP and Burp Suite workflows for automated scanning
• Implementing runtime protection: Application Guardrails, memory safety practices, and secure logging/auditing
• Managing patches, tracking dependencies, and responding to .NET/ASP.NET security advisories
• Hands-on Lab: Creating pre-commit and pipeline security gates for a .NET solution

Knowledge Sources and Secure Development Ecosystem

• Reviewing official Microsoft security guidance, .NET security documentation, and ASP.NET hardening references
• Monitoring CVE databases, advisory feeds, and responsible disclosure processes for open-source dependencies
• Utilizing secure library ecosystems: PGP, crypto-operations, authentication scaffolds, and compliant cryptography
• Establishing internal secure coding standards, developer enablement programs, and security champion initiatives
• Workshop: Curating a personalized secure development toolkit and setting up continuous monitoring practices