Overview What You Will Learn Curriculum Instructor

Course Overview

Exploiting Race Conditions in Web Applications delves into a critical class of vulnerabilities that arise when multiple operations execute concurrently without proper synchronization. Race conditions can lead to severe consequences such as unauthorized transactions, privilege escalation, or data corruption—making them a prime target for attackers. Understanding how to detect, exploit, and prevent race conditions is essential for developers, security testers, and ethical hackers aiming to build and maintain robust web applications.

This course begins with a step-by-step breakdown of Case 1, where learners explore how a race condition vulnerability can be exploited to gain unintended benefits—first conceptually, then through a hands-on attack simulation. It continues with Case 2, introducing a different web scenario to highlight the diverse contexts in which race conditions can occur. The course then examines real-world case studies of award-winning race condition exploits, demonstrating how such flaws have been successfully leveraged in high-profile bug bounty reports, emphasizing their practical impact and value.

By the end of this course, learners will understand how to identify, exploit, and mitigate race conditions in real-world web applications.

What You Will Learn

  • Learn about one of the most dangerous and underestimated attacks in modern web applications
  • Discover step by step how this attack works in practice (DEMOS)
  • Check if your web applications are vulnerable to this attack
  • Explore case studies of award-winning race condition attacks

Program Curriculum

  • Exploiting Race Conditions - Case 1 (Part 1)
  • Exploiting Race Conditions - Case 1 (Part 2)
  • Exploiting Race Conditions -Case 2
  • Case Studies of Award-winning Race Condition Attacks
  • $7 Million Cybersecurity Scholarship by EC-Council
  • Chapter 1 Quiz

Instructor

Dawid Czagan

Dawid Czagan (@dawidczagan) is an internationally recognized security researcher and trainer. He is listed among the top hackers at HackerOne. Dawid Czagan has found security vulnerabilities in Google, Yahoo, Mozilla, Microsoft, Twitter and other companies. Due to the severity of many bugs, he received numerous awards for his findings. Dawid Czagan shares his security bug hunting experience in his hands-on trainings “Hacking Web Applications – Case Studies of Award-Winning Bugs in Google, Yahoo, Mozilla and More” and “Black Belt Pentesting / Bug Hunting Millionaire: Mastering Web Attacks with Full-Stack Exploitation”. He delivered security training courses at key industry conferences such as Hack In The Box (Amsterdam), CanSecWest (Vancouver), 44CON (London), Hack In Paris (Paris), DeepSec (Vienna), NorthSec (Montreal), HITB GSEC (Singapore), BruCON (Ghent) and for many corporate clients. His students include security specialists from Oracle, Adobe, ESET, ING, Red Hat, Trend Micro, Philips and the government sector (references are attached to Dawid Czagan's LinkedIn profile (https://www.linkedin.com/in/dawid-czagan-85ba3666/). They can also be found here: https://silesiasecuritylab.com/services/training/#opinions). Dawid Czagan is the founder and CEO of Silesia Security Lab – a company which delivers specialized security testing and training services. He is also an author of online security courses. To find out about the latest in Dawid Czagan’s work, you are invited to subscribe to his newsletter (https://silesiasecuritylab.com/newsletter) and follow him on Twitter (@dawidczagan) and LinkedIn (https://www.linkedin.com/in/dawid-czagan-85ba3666/).

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