# Business CTF 2022: Chaining Self XSS with Cache Poisoning – Felonious Forums
In the world of cybersecurity, challenges like the **Business CTF 2022** provide a unique opportunity for enthusiasts and professionals alike to test their skills. One of the standout challenges from this event was the **Felonious Forums** web challenge. In this post, we’ll explore the creator’s perspective, delve into the motives behind the challenge, and provide a detailed write-up of the experience.
## Understanding the Challenge
The **Felonious Forums** challenge was designed to test participants’ abilities to exploit vulnerabilities in a web application. The primary focus was on **Self XSS** (Cross-Site Scripting) and **Cache Poisoning**. These terms might sound technical, but let’s break them down:
– **Self XSS** occurs when a user inadvertently executes malicious scripts in their own browser. This can happen when they are tricked into pasting a script into their console.
– **Cache Poisoning** involves manipulating the cache of a web application to serve malicious content to users.
By chaining these two vulnerabilities, participants could create a powerful exploit that demonstrated the importance of web security.
## The Creator’s Perspective
From the creator’s viewpoint, the challenge was not just about finding vulnerabilities but also about understanding the **motives** behind them. The goal was to encourage participants to think critically about security and the potential consequences of their actions. By engaging with the challenge, participants could gain insights into how attackers think and operate.
## The Write-Up
The write-up of the **Felonious Forums** challenge is a comprehensive guide that walks through the steps taken to exploit the vulnerabilities. Here’s a simplified overview of the process:
1. **Identifying the Vulnerability**: Participants began by exploring the web application to find potential weaknesses.
2. **Exploiting Self XSS**: Once a vulnerability was identified, they crafted a script that could be executed in the browser.
3. **Implementing Cache Poisoning**: The next step involved manipulating the cache to ensure that the malicious script would be served to other users.
4. **Executing the Attack**: Finally, participants executed their exploit, demonstrating the effectiveness of their approach.
This process not only highlighted the technical skills required but also emphasized the importance of ethical considerations in cybersecurity.
## Conclusion
The **Business CTF 2022** and its **Felonious Forums** challenge provided a valuable learning experience for all participants. By understanding the intricacies of vulnerabilities like Self XSS and Cache Poisoning, individuals can better prepare themselves for real-world cybersecurity threats.
For those interested in diving deeper into this topic, I encourage you to check out the full write-up on the [Hack The Box blog](https://www.hackthebox.com/blog/business-ctf-2022-felonious-forums-write-up). It’s a fantastic resource that offers a wealth of information and insights into the world of cybersecurity challenges.
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