Course Overview
Your Web application written in C# works as intended, so you are done, right? But did you consider feeding in incorrect values? 16Gbs of data? A null? An apostrophe? Negative numbers, or specifically -1 or -2^31? Because that’s what the bad guys will do – and the list is far from complete.
Handling security needs a healthy level of paranoia, and this is what this course provides: a strong emotional engagement by lots of hands-on labs and stories from real life, all to substantially improve code hygiene. Mistakes, consequences, and best practices are our blood, sweat and tears.
The curriculum goes through the common Web application security issues following the OWASP Top Ten but goes far beyond it both in coverage and the details.All this is put in the context of C#, and extended by core programming issues, discussing security pitfalls of the C# language and the ASP.NET framework.
So that you are prepared for the forces of the dark side.
So that nothing unexpected happens.
Nothing.
Who should attend
C# developers working on Web applications.
Prerequisites
General C# and Web development
Course Objectives
- Getting familiar with essential cyber security concepts
- Understanding how cryptography supports security
- Learning how to use cryptographic APIs correctly in C#
- Understanding Web application security issues
- Detailed analysis of the OWASP Top Ten elements
- Putting Web application security in the context of C#
- Going beyond the low hanging fruits
- Input validation approaches and principles
- Managing vulnerabilities in third party components
- Getting familiar with security testing techniques and tools
Outline: Web application security masterclass in C# (WASECM-C#)
Day 1
- Cyber security basics
- What is security?
- Threat and risk
- Cyber security threat types – the CIA triad
- Consequences of insecure software
- Constraints and the market
- The OWASP Top Ten 2021
- The OWASP Top 10 2021
- A01 - Broken Access Control
- Access control basics
- Missing or improper authorization
- Failure to restrict URL access
- Confused deputy
- File upload
- Open redirects and forwards
- Cross-site Request Forgery (CSRF)
- A02 - Cryptographic Failures
- Information exposure
- Cryptography for developers
Day 2
- A02 - Cryptographic Failures (continued)
- Cryptography for developers
- Certificates
- A03 - Injection
- Injection principles
- Injection attacks
- SQL injection
- Code injection
- HTML injection - Cross-site scripting (XSS)
Day 3
- A03 - Injection (continued)
- Input validation
- A04 - Insecure Design
- The STRIDE model of threats
- Secure design principles of Saltzer and Schroeder
- Client-side security
Day 4
- A05 - Security Misconfiguration
- Configuration principles
- Server misconfiguration
- ASP.NET and IIS configuration best practices
- Cookie security
- XML entities
- A06 - Vulnerable and Outdated Components
- Using vulnerable components
- Assessing the environment
- Hardening
- Untrusted functionality import
- Vulnerability management
- A07 - Identification and Authentication Failures
- Authentication
- Session management
- Password management
- A08 - Software and Data Integrity Failures
- Integrity protection
Day 5
- A08 - Software and Data Integrity Failures (continued)
- Subresource integrity
- Insecure deserialization
- A09 - Security Logging and Monitoring Failures
- Logging and monitoring principles
- Insufficient logging
- Case study – Plaintext passwords at Facebook
- Logging best practices
- C# logging best practices
- Monitoring best practices
- Firewalls and Web Application Firewalls (WAF)
- Intrusion detection and prevention
- Case study – The Marriott Starwood data breach
- A10 - Server-side Request Forgery (SSRF)
- Server-side Request Forgery (SSRF)
- Case study – SSRF and the Capital One breach
- Web application security beyond the Top Ten
- Code quality
- Denial of service
- Security testing
- Security testing techniques and tools
- Code analysis
- Dynamic analysis
- Security testing techniques and tools
- Wrap up
- Secure coding principles
- And now what?