Created by Fernando Mengali

YrpreyPollsPython is a framework based poll system. The framework perfectly simulates a tasks system that can help a user in managing taks and actions, but it has vulnerabilities based on OWASP TOP 10 WebApp 2021 and API 2019. The framework was developed to teach and learn details in Pentest (testing penetration) and Application Security. In the context of Offensive Security, vulnerabilities contained in web applications can be identified, exploited and compromised. For application security professionals and experts, the framework provides an in-depth understanding of code-level vulnerabilities. Yrprey, making it valuable for educational, learning and teaching purposes in the field of Information Security. For more information about the vulnerabilities, we recommend exploring the details available at yrprey.com.

• Based on OWASP's top 10 vulnerabilities for Web Application and API.

• 1º - Python
• 2º - PHP
• 3º - Materialize CSS
• 4º - JavaScript
• 5º - MariaDB
• 5º - Ajax

Initially, a non-registered user only has access to the index.php page. The user can authenticate to the system with the credentials admin and the password admin. Functionalities include adding tasks, edit and removals. yrprey tasks is not recommended for personal or commercial use, only for laboratory use and learning about exploiting and patching vulnerabilities.

In this section, we have a comparison of the vulnerabilities present in the framework with the routes and a comparison between the OWASP TOP 10 Web Application. This table makes it easier to understand how to exploit vulnerabilities in each systemic function. In the last two columns we have a parenthesis and the scenario associated with the OWASP TOP 10 Web Applications and API, facilitating the understanding of the theory described on the page https://owasp.org/www-project-top-ten/. After understanding the scenario and the vulnerable route, the process of identifying and exploiting vulnerabilities becomes easier. If you are an Application Security professional, knowing the scenario and routes of endpoints makes the process of identifying and correcting vulnerabilities easier with manual Code Review Security techniques or automated SAST, SCA and DAST analyses

Complete table with points vulnerables, vulnerability details and a comparison between OWASP TOP 10 Web Application vulnerabilities:

• 1º - Install and configure Apache, PHP and MariaDB on your Linux
• 2º - Import the YRpreyPHP files to /var/www/
• 3º - Create a database named "yrprey"
• 4º - Import the yrprey.sql into the database.
• 5º - Access the address http://localhost in your browser
• 6º - In php ini change allow_url_include to "On".
• 7º - Add the tasks.py file. Necessary packages for tasks.py to run successfully.
• 8º - In the Gitbash terminal or Windows Command Prompt, install the packages.

pip install Flask

pip install flask-cors

pip install pymysql

9º - In the Gitbash terminal or Windows Command Prompt, start the server with command.

python tasks.py

10º - In the Gitbash terminal, give write permission to the file file.php.

chmod 777 file.php

You can test on Xampp or any other platform that supports PHP and MariaDB.

Please, avoid taking this action and requesting a CVE!

The application intentionally has some vulnerabilities, most of them are known and are treated as lessons learned. Others, in turn, are more "hidden" and can be discovered on your own. If you have a genuine desire to demonstrate your skills in finding these extra elements, we suggest you share your experience on a blog or create a video. There are certainly people interested in learning about these nuances and how you identified them. By sending us the link, we may even consider including it in our references.