From payment processing to membership transfers: How I uncovered another systemic concurrency issue.

How I earned $2,000 discovering a time-of-check to time-of-use vulnerability

We are performing a Web Application Penetration Testing task for a company that hired you, which just released their new Security Blog. In our Web Application Penetration Testing plan, we reached the part where you must test the web application against Cross-Site Scripting vulnerabilities (XSS).

During our Penetration Test, we came across a web server that contains JavaScript and APIs. We need to determine their functionality to understand how it can negatively affect our customer.

To complete this Skills Assessment, you will need to apply the multitude of tools and techniques showcased throughout this module. All fuzzing can be completed using the common.txtAfter completing all steps in the assessment, you will be presented with a page that contains a flag in the format of HTB{…}. What is that flag?

To complete the skills assessment, answer the questions below. You will need to apply a variety of skills learned in this module, including:

When trying to access the Admin panel via the front end system, we get “access denied”. When intercepting the request it looks like:

This learning path covers path traversal vulnerabilities. You’ll learn how to carry out path traversal attacks and circumvent common obstacles. You’ll also learn how to prevent path traversal attacks.