Szkolenia SCADEMY

Cel szkolenia

kod: CL-NWA | wersja: 1.0

Writing .NET web applications can be rather complex – reasons range from dealing with legacy technologies or underdocumented third-party components to sharp deadlines and code maintainability. Yet, beyond all that, what if we told you that attackers were trying to break into your code right now? How likely would they be to succeed?

This course will change the way you look at your C# code. We'll teach you the common weaknesses and their consequences that can allow hackers to attack your system, and – more importantly – best practices you can apply to protect yourself. We give you a holistic view on the security aspects of the .NET framework – such as making use of cryptography or Code Access Security – as well as common C# programming mistakes you need to be aware of. We also cover typical Web vulnerabilities with a focus on how they affect ASP.NET web apps on the entire stack – from the CLR to modern AJAX and HTML5-based frontends. We present the entire course through live practical exercises to keep it engaging and fun.

Writing secure code will give you a distinct edge over your competitors. It is your choice to be ahead of the pack – take a step and be a game-changer in the fight against cybercrime.

Participants attending this course will:

  • Understand basic concepts of security, IT security and secure coding
  • Learn Web vulnerabilities beyond OWASP Top Ten and know how to avoid them
  • Learn about XML security
  • Learn client-side vulnerabilities and secure coding practices
  • Learn to use various security features of the .NET development environment
  • Have a practical understanding of cryptography
  • Learn about typical coding mistakes and how to avoid them
  • Get sources and further readings on secure coding practices

Audience:

C# Web developers

Plan szkolenia Rozwiń listę

  1. IT security and secure coding
    • Nature of security
    • What is risk?
    • IT security vs. secure coding
    • From vulnerabilities to botnets and cybercrime
      • Nature of security flaws
      • Reasons of difficulty
      • From an infected computer to targeted attacks
  2. Web application security
    • OWASP Top Ten 2017
    • Injection
      • Injection principles
      • SQL injection
        • Exercise – SQL injection
        • Typical SQL Injection attack methods
        • Blind and time-based SQL injection
        • SQL injection protection methods
        • Effect of data storage frameworks on SQL injection
      • Other injection flaws
        • Command injection
        • Command injection exercise – starting Netcat
      • HTTP parameter pollution
        • Cookie injection / HTTP parameter pollution
        • Exercise – Value shadowing
    • Broken authentication
      • Session handling threats
      • Session fixation
      • Exercise – Session fixation
      • Session handling best practices
      • Setting cookie attributes – best practices
      • Cross site request forgery (CSRF)
        • CSRF prevention
    • XML external entity (XXE)
      • XML Entity introduction
      • XML external entity attack (XXE) – resource inclusion
      • XML external entity attack – URL invocation
      • XML external entity attack – parameter entities
      • Exercise – XXE attack
      • Preventing entity-related attacks
      • Case study – XXE in Google Toolbar
    • Broken access control
      • Typical access control weaknesses
      • Insecure direct object reference (IDOR)
      • Exercise – Insecure direct object reference
      • Protection against IDOR
      • Case study – Facebook Notes
    • Cross-Site Scripting (XSS)
      • Persistent XSS
      • Reflected XSS
      • DOM-based XSS
      • Exercise – Cross Site Scripting
      • XSS prevention
      • Output encoding API in C#
      • XSS protection in ASP.NET – validateRequest
    • Insecure deserialization
      • Serialization and deserialization basics
      • Security challenges of deserialization
      • Deserialization in .NET
      • From deserialization to code execution
      • POP payload targeting MulticastDelegate (C#)
      • Real-world .NET deserialization vulnerabilities
      • Issues with deserialization – JSON
      • Best practices against deserialization vulnerabilities
  3. Client-side security
    • JavaScript security
    • Same Origin Policy
    • Simple requests
    • Preflight requests
    • Clickjacking
      • Clickjacking
      • Exercise – IFrame, Where is My Car?
      • Protection against Clickjacking
      • Anti frame-busting – dismissing protection scripts
      • Protection against busting frame busting
    • AJAX security
      • XSS in AJAX
      • Script injection attack in AJAX
      • Exercise – XSS in AJAX
      • XSS protection in AJAX
      • Exercise CSRF in AJAX – JavaScript hijacking
      • CSRF protection in AJAX
    • HTML5 security
      • New XSS possibilities in HTML5
      • HTML5 clickjacking attack – text field injection
      • HTML5 clickjacking – content extraction
      • Form tampering
      • Exercise – Form tampering
      • Cross-origin requests
      • HTML proxy with cross-origin request
      • Exercise – Client side include
  4. .NET security architecture and services
    • .NET architecture
    • Code Access Security
      • Full and partial trust
      • Evidence classes
      • Permissions
      • Code access permission classes
      • Deriving permissions from evidence
      • Defining custom permissions
      • .NET runtime permission checking
      • The Stack Walk
      • Effects of Assert()
      • Class and method-level declarative permission
      • Imperative (programmatic) permission checking
      • Exercise – sandboxing .NET code
      • Using transparency attributes
      • Allow partially trusted callers
      • Exercise – using transparency attributes
  5. Practical cryptography
    • Rule #1 of implementing cryptography
    • Cryptosystems
      • Elements of a cryptosystem
      • .NET cryptographic architecture
    • Symmetric-key cryptography
      • Providing confidentiality with symmetric cryptography
      • Symmetric encryption algorithms
      • Modes of operation
      • Encrypting and decrypting (symmetric)
    • Other cryptographic algorithms
      • Hash or message digest
      • Hash algorithms
      • SHAttered
      • Hashing
      • Message Authentication Code (MAC)
      • Providing integrity and authenticity with a symmetric key
      • Random number generation
        • Random numbers and cryptography
        • Cryptographically-strong PRNGs
        • Weak PRNGs in .NET
        • Strong PRNGS in .NET
        • Hardware-based TRNGs
    • Asymmetric (public-key) cryptography
      • Providing confidentiality with public-key encryption
      • Rule of thumb – possession of private key
      • The RSA algorithm
        • Introduction to RSA algorithm
        • Encrypting with RSA
        • Combining symmetric and asymmetric algorithms
        • Digital signing with RSA
        • Asymmetric algorithms in .NET
        • Exercise Sign
        • Exercise – using .NET cryptographic classes
    • Public Key Infrastructure (PKI)
      • Man-in-the-Middle (MitM) attack
      • Digital certificates against MitM attack
      • Certificate Authorities in Public Key Infrastructure
      • X.509 digital certificate
  6. Common coding errors and vulnerabilities
    • Input validation
      • Input validation concepts
      • Integer problems
        • Representation of negative integers
        • Integer overflow
        • Exercise IntOverflow
        • What is the value of Math.Abs(int.MinValue)?
        • Integer problem – best practices
      • Path traversal vulnerability
        • Path traversal – weak protections
        • Path traversal – best practices
      • Unvalidated redirects and forwards
      • Log forging
        • Some other typical problems with log files
    • Improper use of security features
      • Typical problems related to the use of security features
      • Password management
        • Exercise – Weakness of hashed passwords
        • Password management and storage
        • Special purpose hash algorithms for password storage
        • Argon2 and PBKDF2 implementations in .NET
        • bcrypt and scrypt implementations in .NET
        • Case study – the Ashley Madison data breach
        • Typical mistakes in password management
        • Exercise – Hard coded passwords
      • Accessibility modifiers
        • Accessing private fields with reflection in .NET
        • Exercise Reflection – Accessing private fields with reflection
    • Improper error and exception handling
      • Typical problems with error and exception handling
      • Empty catch block
      • Overly broad catch
      • Using multi-catch
      • Catching NullReferenceException
      • Exception handling – spot the bug!
      • Exercise – Error handling
    • Time and state problems
      • Concurrency and threading
      • Concurrency in .NET
      • Omitted synchronization – spot the bug!
      • Exercise – Omitted synchronization
      • Incorrect granularity – spot the bug!
      • Exercise – Incorrect granularity
      • Deadlocks
      • Avoiding deadlocks
      • Exercise – Avoiding deadlocks
      • Lock statement
    • Code quality problems
      • Dangers arising from poor code quality
      • Poor code quality – spot the bug!
      • Unreleased resources
      • Serialization – spot the bug!
      • Exercise – Serializable sensitive
      • Private arrays – spot the bug!
      • Private arrays – typed field returned from a public method
      • Class not sealed – object hijacking
      • Exercise – Object hijacking
      • Immutable string – spot the bug!
      • Exercise – Immutable strings
      • Using SecureString
  7. Principles of security and secure coding
    • Matt Bishop’s principles of robust programming
    • The security principles of Saltzer and Schroeder
  8. Knowledge sources
    • Secure coding sources – a starter kit
    • Vulnerability databases
    • .NET secure coding guidelines at MSDN
    • .NET secure coding cheat sheets
    • Recommended books – .NET and ASP.NET
Pobierz konspekt szkolenia w formacie PDF

Dodatkowe informacje

Wymagania

General C# and Web application development

Poziom trudności
Czas trwania 3 dni
Certyfikat

The participants will obtain certificates signed by SCADEMY (course completion).

Prowadzący

Authorized SCADEMY Trainer

Informacje dodatkowe

Training come with a number of easy-to-understand exercises providing live hacking fun. By accomplishing these exercises with the lead of the trainer, participants can analyze vulnerable code snippets and commit attacks against them in order to fully understand the root causes of certain security problems. All exercises are prepared in a plug-and-play manner by using a pre-set desktop virtual machine, which provides a uniform development environment.

SCADEMY together with online application security educational platform AVATAO (more about AVATAO www.avatao.com) for each of participant SCADEMYs authorized training adds the 30 days business AVATAO trial holds the following package:

  • 30-day customized free trial
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