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Desktop Application Security in Java (DASEC-J)

Detaillierter Kursinhalt

DAY 1

Cyber security basics

  • What is security?
  • Threat and risk
  • Cyber security threat types
  • Consequences of insecure software
    • Constraints and the market
    • The dark side
  • Categorization of bugs
    • The Seven Pernicious Kingdoms
    • Common Weakness Enumeration (CWE)
    • CWE Top 25 Most Dangerous Software Errors
    • SEI CERT Secure Coding Guidelines

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
  • Injection
    • Injection principles
    • Injection attacks
    • Code injection
      • OS command injection
        • OS command injection best practices
        • Using Runtime.exec()
        • Using ProcessBuilder
        • Case study – Shellshock
        • Lab – Shellshock
        • Case study – Command injection via ping
      • Script injection
    • General protection best practices
  • Integer handling problems
    • Representing signed numbers
    • Integer visualization
    • Integer overflow
    • Lab – Integer overflow
    • Signed / unsigned confusion in Java
    • Case study – The Stockholm Stock Exchange
    • Integer truncation
    • Best practices
      • Upcasting
      • Precondition testing
      • Postcondition testing
      • Using big integer libraries
      • Integer handling in Java
      • Lab – Integer handling
    • Files and streams
      • Path traversal
      • Path traversal-related examples
      • Lab – Path traversal
      • Additional challenges in Windows
      • Path traversal best practices
    • Unsafe reflection
      • Reflection without validation
      • Lab – Unsafe reflection
    • Unsafe native code
      • Native code dependence
      • Lab – Unsafe JNI
      • Best practices for dealing with native code

DAY 2

Security features

  • Authentication
    • Authentication basics
    • Multi-factor authentication
    • Authentication weaknesses – spoofing
    • Case study – PayPal 2FA bypass
    • User interface best practices
    • Lab – On-line password brute forcing
    • Password management
      • Inbound password management
        • Storing account passwords
        • Password in transit
        • Lab – Is just hashing passwords enough?
        • Dictionary attacks and brute forcing
        • Salting
        • Adaptive hash functions for password storage
        • Password policy
          • NIST authenticator requirements for memorized secrets
          • Password length
          • Password hardening
          • Using passphrases
          • Lab – Applying a password policy
        • Case study – The Ashley Madison data breach
          • The dictionary attack
          • The ultimate crack
          • Exploitation and the lessons learned
        • Password database migration
          • Outbound password management
            • Hard coded passwords
            • Best practices
            • Lab – Hardcoded password
            • Protecting sensitive information in memory
              • Challenges in protecting memory
              • Storing sensitive data in memory
  • Authorization
    • Access control basics
  • Information exposure
    • Exposure through extracted data and aggregation
    • Case study – Strava data exposure
    • System information leakage
      • Leaking system information
    • Information exposure best practices
  • Java platform security
    • The Java programming language and runtime environment
    • Type safety and security
    • Security features of the JRE
      • The ClassLoader and the BytecodeVerifier
    • Application-level access control in Java
      • Permissions and the Security Manager
      • Privilege best practices
    • Role-based access control
      • Java Authentication and Authorization Services (JAAS)
    • Protecting Java code and applications
      • Code signing
      • Lab – Code signing and permissions
  • UI security
    • UI security principles
    • Sensitive information in the user interface
    • Misinterpretation of UI features or actions
    • Insufficient UI feedback
    • Relying on hidden or disabled UI element
    • Insufficient anti-automation

Time and state

  • Race conditions
    • Race condition in object data members
      • Singleton member fields
      • Lab – Singleton member fields
    • File race condition
      • Time of check to time of usage – TOCTTOU
      • Insecure temporary file
    • Database race conditions
      • Lab – Database race conditions
    • Avoiding race conditions in Java

Errors

  • Error and exception handling principles
  • Error handling
    • Returning a misleading status code
    • Reachable assertion
    • Information exposure through error reporting
  • Exception handling
    • In the catch block. And now what?
    • Catching NullPointerException
    • Empty catch block

DAY 3

Cryptography for developers

  • Cryptography basics
  • Java Cryptographic Architecture (JCA) in brief
  • Elementary algorithms
    • Random number generation
      • Pseudo random number generators (PRNGs)
      • Cryptographically strong PRNGs
      • Using virtual random streams
      • Weak and strong PRNGs in Java
      • Using random numbers in Java
      • Case study – Equifax credit account freeze
      • Lab – Random numbers in Java
    • Hashing
      • Hashing basics
      • Common hashing mistakes
      • Hashing in Java
      • Lab – Hashing in JCA
  • Confidentiality protection
    • Symmetric encryption
      • Block ciphers
      • Modes of operation
      • Modes of operation and IV – best practices
      • Symmetric encryption in Java
      • Lab – Symmetric encryption in JCA
      • Asymmetric encryption
        • The RSA algorithm
          • Using RSA – best practices
          • RSA in Java
          • Lab – Using RSA in JCA
        • Elliptic Curve Cryptography
          • The ECC algorithm
          • Using ECC – best practices
          • ECC in Java
          • Lab – Using ECC in JCA
        • Combining symmetric and asymmetric algorithms
  • Integrity protection
    • Message Authentication Code (MAC)
      • Calculating MAC in Java
      • Lab – Using MAC in JCA
    • Digital signature
      • Digital signature with RSA
      • Digital signature with ECC
      • Digital signature in Java
      • Lab – Digital signature in JCA
  • Public Key Infrastructure (PKI)
    • Some further key management challenges
    • Certificates
      • Chain of trust
      • Certificate management – best practices

Common software security weaknesses

  • Code quality
    • Data handling
      • Initialization and cleanup
        • Constructors and destructors
        • Class initialization cycles
        • Lab – Initialization cycles
      • Unreleased resource
        • The finalize() method – best practices
    • Object oriented programming pitfalls
      • Accessibility modifiers
        • Are accessibility modifiers a security feature?
        • Accessibility modifiers – best practices
        • Overriding and accessibility modifiers
      • Inheritance and overriding
      • Mutability
        • Lab – Mutable object
      • Cloning

Using vulnerable components

  • Assessing the environment
  • Hardening
  • Vulnerability management
    • Patch management
    • Vulnerability databases
    • Lab – Finding vulnerabilities in third-party components

Wrap up

  • Secure coding principles
    • Principles of robust programming by Matt Bishop
    • Secure design principles of Saltzer and Schröder
  • And now what?
    • Software security sources and further reading
    • Java resources