Challenge Overview

Working as a Penetration Tester at a cybersecurity consulting firm, you have received an assignment with a new client. This new client has a blog that has been compromised by an unknown attacker. The client had restored it to the previous backup to keep it running. Your task as a Penetration Tester is to identify the attack path by exploiting vulnerabilities in the server's replica before the hacker can strike again. Your target web server is running on Linux Ubuntu with an IP address of 10.10.1.58. You are required to discover and exploit the web application vulnerabilities and answer the questions.

What You Will Learn

  • Understanding the difference between Reflected XSS and Stored XSS, and knowing how each type is triggered and exploited in real-world web applications.
  • Ability to analyze web application functionality (like search bars and comment sections) to identify potential input injection points.
  • Skills in crafting malicious payloads to bypass basic input filters, such as blocking script tags, using alternative XSS techniques (event handlers, encoded payloads, etc.).
  • Practical knowledge of how client-side code execution works in browsers, including how injected JavaScript executes in a victim’s session.
  • Thinking like a penetration tester by identifying the attack path, reproducing the vulnerability in a controlled environment, and demonstrating proof of exploitation against a Linux-based web server (Ubuntu at 10.10.1.58).

Program Curriculum

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