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EncartaLabs

Web Application Security in Java

( Duration: 3 Days )

Your Web application written in Java 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 -231? 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.

This Web Application Security in Java training course covers 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 Java, and extended by core programming issues, discussing security pitfalls of the Java language and framework.

By attending Web Application Security in Java workshop, delegates will learn:

  • Getting familiar with essential cyber security concepts
  • Understanding Web application security issues
  • Detailed analysis of the OWASP Top Ten elements
  • Putting Web application security in the context of Java
  • Going beyond the low hanging fruits
  • Managing vulnerabilities in third party components
  • Identify vulnerabilities and their consequences
  • Security best practices in Java
  • Input validation approaches and principles

  • General Java and Web development

The Web Application Security in Java class is ideal for:

  • Java developers working on Web applications

COURSE AGENDA

1

Cyber security basics

  • What is security?
  • Threat and risk
  • Cyber security threat types
  • Consequences of insecure software
2

The OWASP Top Ten - 1

  • OWASP Top 10
  • A1 - Injection
    • Injection principles
    • Injection attacks
    • SQL injection
      • SQL injection basics
      • Attack techniques
      • Content-based blind SQL injection
      • Time-based blind SQL injection
      • Input validation
      • Parameterized queries
      • Additional considerations
    • Code injection
      • OS command injection
      • Using Runtime.exec()
      • Using ProcessBuilder
      • Script injection
  • A2 - Broken Authentication
    • Authentication basics
    • Multi-factor authentication
    • Authentication weaknesses - spoofing
    • Spoofing on the Web
    • Password management
      • Inbound password management
      • Storing account passwords
      • Password in transit
      • Dictionary attacks and brute forcing
      • Salting
      • Adaptive hash functions for password storage
      • Password policy
      • NIST authenticator requirements for memorized secrets
      • The dictionary attack
      • The ultimate crack
      • Exploitation and the lessons learned
      • Password database migration
      • (Mis)handling null passwords
3

The OWASP Top Ten - 2

  • A2 - Broken Authentication
    • Session management
      • Session management essentials
      • Why do we protect session IDs - Session hijacking
      • Session fixation
      • Cross-site Request Forgery (CSRF)
      • CSRF defense in depth
      • Cookie security
      • Cookie attributes
  • A4 - XML External Entities (XXE)
    • DTD and the entities
    • Entity expansion
    • External Entity Attack (XXE)
      • File inclusion with external entities
      • Server-Side Request Forgery with external entities
      • Preventing XXE
  • A5 - Broken Access Control
    • Access control basics
    • Failure to restrict URL access
    • Confused deputy
      • Insecure direct object reference (IDOR)
      • Authorization bypass through user-controlled keys
    • File upload
      • Unrestricted file upload
      • Good practices
  • A7 - 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
      • Protection principles - escaping
      • XSS protection APIs in Java
      • XSS protection in JSP
      • Additional protection layers
      • Client-side protection principles
  • A8 - Insecure Deserialization
    • Serialization and deserialization challenges
    • Deserializing untrusted streams
    • Using ReadObject
    • Sealed objects
    • Look ahead deserialization
    • Property Oriented Programming (POP)
      • Creating payload
  • A9 - Using Components with Known Vulnerabilities
    • Using vulnerable components
    • Assessing the environment
    • Hardening
    • Untrusted functionality import
    • Importing JavaScript
    • Vulnerability management
      • Patch management
      • Vulnerability databases
4

The OWASP Top Ten - 3

  • Web application security beyond the Top Ten
    • Client-side security
    • Same Origin Policy
      • Tabnabbing
    • Frame sandboxing
      • Cross-Frame Scripting (XFS) attack
      • Clickjacking beyond hijacking a click
5

Common software security weaknesses

  • Input validation
    • Input validation principles
      • Blacklists and whitelists
      • Data validation techniques
      • What to validate - the attack surface
      • Where to validate - defense in depth
      • How to validate - validation vs transformations
      • Output sanitization
      • Encoding challenges
      • Validation with regex
    • Integer handling problems
      • Representing signed numbers
      • Integer visualization
      • Integer overflow
      • Signed / unsigned confusion in Java
      • Integer truncation
      • Upcasting
      • Precondition testing
      • Postcondition testing
      • Using big integer libraries
      • Integer handling in Java
    • Files and streams
      • Path traversal
      • Path traversal-related examples
      • Additional challenges in Windows
    • Unsafe reflection
      • Reflection without validation
      • Unsafe native code
      • Native code dependence
  • Code quality
    • Data handling
      • Initialization and cleanup
      • Constructors and destructors
      • Class initialization cycles
      • Unreleased resource
    • Object oriented programming pitfalls
      • Accessibility modifiers
      • Are accessibility modifiers a security feature?
      • Overriding and accessibility modifiers
      • Inheritance and overriding
      • Mutability
      • Cloning

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  • All our trainings are conducted in workshop mode with more focus on hands-on sessions

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