Trainer Name: Dániel Szpisják

Title: OWASP Top 10, Secure Coding Fundamentals

Duration: 4 days (4 hrs each day)

Dates: May 10, 2022 To May 13, 2022

Time: 10 a.m. To 2 p.m. IST

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Training Objective

Writing web applications can be rather complex – reasons range from dealing with legacy technologies or under documented 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 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 cover typical Web vulnerabilities with a focuson how they affect web apps on the entire stack – from the base environment to modern AJAX and HTML5-based frontends. In addition, we discuss the security aspects of different platforms as well as typical programming mistakes you need to be aware of. 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.

Training level: Basic

Course outline

Day 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
      • From an infected computer to targeted attacks
      • The Seven Pernicious Kingdoms
      • OWASP Top Ten 2017
  • Web application security
    • 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
      • Case study – ImageMagick
    • Broken authentication
      • Session handling threats
      • Session handling best practices
      • Session handling in Java
      • Setting cookie attributes – best practices
      • Cross site request forgery (CSRF)
      • CSRF prevention
      • CSRF prevention in Java frameworks
    • 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
Day 2:
  • 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
    • XSS prevention tools in Java and JSP
  • 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
  • Insecure deserialization
    • Serialization and deserialization basics
    • Security challenges of deserialization
    • Deserialization in Java
    • Denial-of-service via Java deserialization
    • From deserialization to code execution
    • POP payload targeting InvokerTransformer (Java)
    • Real-world Java deserialization vulnerabilities
    • Issues with alternative Java object deserialization methods
    • Secure deserialization with FST
    • Secure deserialization with Kryo
    • Issues with deserialization – JSON
    • Best practices against deserialization vulnerabilities
    • Case study – XML deserialization in Apache Struts leading to RCE
    • CVE-2017-9805 – Apache Struts RCE when deserializing XML
    • Example XML triggering the RCE
  • Using components with known vulnerabilities
    • Vulnerability attributes
    • Common Vulnerability Scoring System – CVSS
  • Insufficient logging and monitoring
    • Detection and response
    • Logging and log analysis
    • Intrusion detection systems and Web application firewalls
Day 3:
  • 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(Integer.MIN_VALUE)?
      • 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 Java
      • bcrypt and scrypt implementations in Java
      • Case study – the Ashley Madison data breach
      • Typical mistakes in password management
      • Exercise – Hard coded passwords
      • Accessibility modifiers
      • Accessing private fields with reflection in Java
      • Exercise Reflection – Accessing private fields with reflection
      • Exercise ScademyPay – Integrity protection weakness
Day 4
  • Improper error and exception handling
    • Typical problems with error and exception handling
    • Empty catch block
    • Overly broad throws
    • Overly broad catch
    • Using multi-catch
    • Returning from finally block – spot the bug!
    • Catching NullPointerException
    • Exception handling – spot the bug!
    • Exercise ScademyPay – Error handling
  • Time and state problems
    • Time and state related problems
    • Concurrency – spot the bug!
    • Calling
    • Race condition in servlets – spot the bug!
    • Race condition – spot the bug!
    • ArrayList vs Vector
  • Code quality problems
    • Dangers arising from poor code quality
    • Poor code quality – spot the bug!
    • Unreleased resources
    • Private arrays – spot the bug!
    • Private arrays – typed field returned from a public method
    • Exercise Object Hijack
    • Public method without final – object hijacking
    • Serialization – spot the bug!
    • Exercise Serializable Sensitive
    • Immutable String – spot the bug!
    • Exercise Immutable Strings
    • Immutability and security
  • Principles of security and secure coding
    • Matt Bishop’s principles of robust programming
    • The security principles of Saltzer and Schroeder
  • Knowledge sources
    • Secure coding sources – a starter kit
    • Vulnerability databases
    • Java secure coding sources
    • Recommended books

What to Bring?

During the training you will be solving hands-on exercises with the help of the trainer on a cloud virtual machine.

These are the requirements to be able to use the VM smoothly.

  • CPU: Intel Core i3 or AMD equivalent
  • RAM: 2 GB
  • Display resolution: 1280x1024
  • 2Mbps Internet connection
  • Possibly two monitors/displays
  • Web browser with HTML5 support to connect to the VM
  • PDF reader to follow along the PDF handout

Recommended hardware specification

  • CPU: Intel Core i5 or AMD equivalent
  • RAM: 4 GB
  • Display resolution: 1600x900 or higher
  • Secondary display for the course material
  • 10+ Mbps Internet connection

Training prerequisites

General software engineer capabilities

Who Should Attend?

Programmers, software developers, team leaders, managers

What to Expect?

  • 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 about typical coding mistakes and how to avoid them
  • Get information about some recent vulnerabilities in the Java framework
  • Get sources and further readings on secure coding practices

What attendees will get?

Participants will receive a welcome page prior to the training including the course material in a pdf file and access to the cloud VMs during the training.

What not to expect?

  • an offensive training with demonstration of attack tools,
  • framework specific best-practices (this is a language agnostic course)

About the Trainer

Dániel Szpisják: We are surrounded by complex systems both in our everyday lives and at work, and these systems always have flaws. I have been looking for flaws like this ever since I can remember, and luckily, constantly searching for mistakes is not just my job but also my hobby. This is a way of thinking for me, making it easier for me to tune into how hackers work and find possible vulnerabilities before an actual attack occurs. However, this wouldn’t be enough to pass on my knowledge. I have an extraordinary trust in knowledge sharing, continuous learning, and development. To my great delight, I can awaken the motivation in participants to become secure coders. This area is totally unique, and I believe that the more developers who take security seriously, the better society and communities will work. Security is not always a rewarding topic among software developers, although a developer trained on this topic is much more valuable to their employer.