Code responsibly with generative AI in C#
33 Labs
15 Case Studies
Platform
Generative AI, Web
Audience
C# developers working on Web applications
Preparedness
General C# and Web development
Standards and references
OWASP, CWE and Fortify Taxonomy
Group size
12 participants
Outline
- Cyber security basics
- The OWASP Top Ten 2021
- Wrap up
What you will learn
- 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
- Managing vulnerabilities in third party components
Description
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.
Note:
This variant of the course deals extensively with how certain security problems in code are handled by GitHub Copilot.
Through a number of hands-on labs participants will get first hand experience about how to use Copilot responsibly, and how to prompt it to generate the most secure code. In some cases it is trivial, but in most of the cases it is not; and in yet some other cases it is basically impossible.
At the same time, the labs provide general experience with using Copilot in everyday coding practice - what you can expect from it, and what are those areas where you shouldn't rely on it.
They said about us
Table of contents
- Cyber security basics
- What is security?
- Threat and risk
- Cyber security threat types – the CIA triad
- Consequences of insecure software
- The OWASP Top Ten 2021
- A01 – Broken Access Control
- Access control basics
- Confused deputy
- Insecure direct object reference (IDOR)
- Path traversal
- Lab – Insecure Direct Object Reference
- Path traversal best practices
- Lab – Experimenting with path traversal in Copilot
- Authorization bypass through user-controlled keys
- Case study – Remote takeover of Nexx garage doors and alarms
- Lab – Horizontal authorization
- File upload
- Unrestricted file upload
- Good practices
- Lab – Unrestricted file upload
- Case study – File upload vulnerability in Citrix ShareFile
- A02 – Cryptographic Failures
- Cryptography for developers
- Cryptography basics
- Crypto APIs in C#
- Elementary algorithms
- Hashing
- Hashing basics
- Hashing in C#
- Lab – Hashing in C#
- Random number generation
- Pseudo random number generators (PRNGs)
- Cryptographically secure PRNGs
- Weak and strong PRNGs
- Using random numbers in C#
- Lab – Using random numbers in C#
- Case study – Equifax credit account freeze
- Hashing
- Confidentiality protection
- Symmetric encryption
- Block ciphers
- Modes of operation
- Modes of operation and IV – best practices
- Symmetric encryption in C#
- Symmetric encryption in C# with streams
- Lab – Symmetric encryption in C#
- Case study – Padding oracle used in RCE against Citrix ShareFile
- Asymmetric encryption
- The RSA algorithm
- Using RSA – best practices
- RSA in C#
- Case study – RSA attacks: Bleichenbacher, ROBOT, and Marvin
- The RSA algorithm
- Combining symmetric and asymmetric algorithms
- Symmetric encryption
- Cryptography for developers
- A01 – Broken Access Control
- The OWASP Top Ten 2021
- A03 – Injection
- Injection principles
- Injection attacks
- SQL injection
- SQL injection basics
- Lab – SQL injection
- Attack techniques
- Content-based blind SQL injection
- Time-based blind SQL injection
- SQL injection best practices
- Input validation
- Parameterized queries
- Lab – Using prepared statements
- Lab – Experimenting with SQL injection in Copilot
- Case study – SQL injection leading to RCE in Ivanti Endpoint Manager
- Code injection
- OS command injection
- Lab – Command injection
- OS command injection best practices
- Avoiding command injection with the right APIs
- Lab – Command injection best practices
- Lab – Experimenting with command injection in Copilot
- Case study – Command injection in Ruckus Wireless AP
- OS command injection
- HTML injection – Cross-site scripting (XSS)
- Cross-site scripting basics
- Cross-site scripting types
- Persistent cross-site scripting
- Reflected cross-site scripting
- Client-side (DOM-based) cross-site scripting
- Lab – Stored XSS
- Lab – Reflected XSS
- Case study – XSS to RCE in Azure Service Fabric
- XSS protection best practices
- Protection principles – escaping
- XSS protection APIs
- Further XSS protection techniques
- Lab – XSS fix / stored
- Lab – XSS fix / reflected
- A04 – Insecure Design
- The STRIDE model of threats
- Secure design principles of Saltzer and Schroeder
- Economy of mechanism
- Fail-safe defaults
- Complete mediation
- Open design
- Separation of privilege
- Least privilege
- Least common mechanism
- Psychological acceptability
- Client-side security
- Frame sandboxing
- Cross-Frame Scripting (XFS) attacks
- Lab – Clickjacking
- Clickjacking beyond hijacking a click
- Clickjacking protection best practices
- Lab – Using CSP to prevent clickjacking
- Frame sandboxing
- A05 – Security Misconfiguration
- Configuration principles
- XML entities
- DTD and the entities
- Entity expansion
- External Entity Attack (XXE)
- File inclusion with external entities
- Server-Side Request Forgery with external entities
- Lab – External entity attack
- Case study – XXE vulnerability in SharePoint
- Preventing XXE
- Lab – Prohibiting DTD
- Lab – Experimenting with XXE in Copilot
- A03 – Injection
- The OWASP Top Ten 2021
- A06 – Vulnerable and Outdated Components
- Using vulnerable components
- Untrusted functionality import
- Case study – The Polyfill.io supply chain attack
- Vulnerability management
- Lab – Finding vulnerabilities in third-party components
- DevOps, the CI / CD build process and Software Composition Analysis
- Dependency checking in C#
- Lab – Detecting vulnerable components
- Security of AI generated code
- Practical attacks against code generation tools
- Dependency hallucination via generative AI
- Case study – A history of GitHub Copilot weaknesses (up to mid 2024)
- A07 – Identification and Authentication Failures
- Authentication
- Authentication basics
- Multi-factor authentication (MFA)
- Case study – The InfinityGauntlet attack
- Password management
- Inbound password management
- Storing account passwords
- Lab – Is just hashing passwords enough?
- Dictionary attacks and brute forcing
- Salting
- Adaptive hash functions for password storage
- Lab – Using adaptive hash functions in C#
- Lab – Using adaptive hash functions in Copilot
- Case study – Veeam missing authentication and cleartext password storage
- Password policy
- Inbound password management
- Authentication
- A08 – Software and Data Integrity Failures
- Integrity protection
- Message Authentication Code (MAC)
- Calculating HMAC in C#
- Lab – Calculating MAC in C#
- Digital signature
- Digital signature with RSA
- Elliptic Curve Cryptography
- ECC basics
- Digital signature with ECC
- Digital signature in C#
- Lab – Digital signature with ECDSA in C#
- Message Authentication Code (MAC)
- Subresource integrity
- Importing JavaScript
- Lab – Importing JavaScript
- Insecure deserialization
- Serialization and deserialization challenges
- Integrity – deserializing untrusted streams
- Integrity – deserialization best practices
- Look ahead deserialization
- Property Oriented Programming (POP)
- Creating a POP payload
- Lab – Creating a POP payload
- Lab – Using the POP payload
- Case study – Deserialization RCE in Veeam
- Summary – POP best practices
- Lab – Preventing POP with Copilot
- Integrity protection
- A10 – Server-side Request Forgery (SSRF)
- Server-side Request Forgery (SSRF)
- Case study – SSRF and the Capital One breach
- A06 – Vulnerable and Outdated Components
- Wrap up
- Secure coding principles
- Principles of robust programming by Matt Bishop
- And now what?
- Software security sources and further reading
- .NET and C# resources
- Secure coding principles
Pricing
3 days Session Price
2250 EUR / person
- Live, instructor led classroom training
- Discussion and insight into the hacker’s mindset
- Hands-on practice using case studies based on high-profile hacks and live lab exercises
Customized course
Tailor a course to your preferences
- Send us a brief description of your business’s training needs
- Include your contact information
- One of our colleagues will be in touch to schedule a free consultation about training requirements
Inquiry
Interested in the trainings but still have some questions? Curious about how you can customize a training for your team? Send us a message and a team member will be in touch within 24 hours.
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