Flask login vulnerability. 6 to parse `multipart/form-data` requests (e.

Flask login vulnerability Flask-AppBuilder is an application development framework, built on top of the Flask web framework. Erlik 2 - Vulnerable-Flask-App. Sep 17, 2023 · To implement Two-Factor Authentication (2FA) in Flask apps, you can use libraries such as Flask-Login and Flask-OTP. Flask began as a wrapper around Jinja and Werkzeug. Identifying Flask Application Using WhatWeb. It is based on code provided by SecureFlag . To further analyze the target, we used WhatWeb, a tool for identifying web technologies, which confirmed that the web application was built with Flask. 5. Dec 2, 2024 · 2. My application interacts with a sqlite3 database to retrieve and store user data. This vulnerability allows for a non authenticated user to enumerate existing accounts by timing the response time May 1, 2023 · Upgrade flask to version 2. 2. 1. 0 are vulnerable to a Cross-Site Scripting (XSS) attack on the OAuth login page. For bug bounty hunters… May 21, 2024 · In the login() method, you get the username and password and check if the user is locked out. Hack your own Flask app login page and then rewrite the code to not be vulnerable. route ( "/login" ) def login (): username = request . Mar 3, 2025 · Flask-AppBuilder is an application development framework. Tested - Kali 2022. Before we dive into the nitty-gritty of CVE-2024–25128, let’s take a moment to appreciate the stage on which this drama unfolds: Flask-AppBuilder. Master user authentication in Flask Web Framework with this concise guide. get ( 'username' ) password = request . Learn registration, login, and logout functionalities using Flask-Login, implement password hashing with Bcrypt, manage sessions, and explore role-based access control. Jan 14, 2021 · Let’s discuss all the options in Flask and Flask extensions such as Flask-Login and Flask-WTF to protect against cookie attack vectors . This gave us insight into the potential vulnerability of the application, specifically related to how Flask handles session cookies. Learn more about the vulnerability and its impact. 4 to 4. Dec 24, 2023 · Use the session cookie to login to superset dashboard as default user 1. The idea seems to be: User goes to /secret User is redirect to a login page (e. Learn more about known vulnerabilities in the flask package. Upgrade to version 4. Nowadays it’s not a big issue to use SSL. The application defines a route for the URL /login and requests credentials from the user: Vulnerability : Python Flask Session Cookie Forging About MITRE CTF The MITRE CTF is a classic Jeopardy style CTF (aka Capture The Flag) held from April 20th to April 21th 2018 organized by MITRE Cyber Academy. It contains the following vulnerabilities. Mar 3, 2025 · Flask-AppBuilder is an application development framework. We have to add these lines to protect against cookie attack vectors in our Flask configuration. In affected versions there exists a user enumeration vulnerability. Oct 5, 2024 · Flask WTF; Flask-Mail; User Registration, Login, and Logout in Flask. Oct 25, 2024 · Description . I've enable the option when logging in to "Remember me", so that when the user closes the browser and revisits the site, their login in now classes as "Non-fresh" (Functionality provided through Flask-login). 3, Flask-AppBuilder allows unauthenticated users to enumerate existing usernames by timing the response time from the server when brute forcing requests to login. 3. Learn the basics of SQL injection by actually writing code that is vulnerable to it. g. 2 or higher. For bug bounty hunters… The documentation for Flask-login talks about handling a "next" URL. Vulnerable-Flask-App. redirect(location, code=302, Response=None) Returns a response object (a WSGI application) that, if called, redirects the client to the target location. Applications using `werkzeug. The following snippet contains a Flask web application written in Python that checks the user-provided credentials against the SQL database. MultiPartParser` corresponding to a version of Werkzeug prior to 3. Vulnerable Login Page: A Flask-based web application with a regex vulnerability in username validation. Overview Affected versions of this package are vulnerable to Information Exposure in the form of exposing the permanent session cookie, when all of the following conditions are met: May 21, 2024 · In the login() method, you get the username and password and check if the user is locked out. Follow the second lab to create a Flask app login vulnerable to SQL injection. formparser. But if not, the login attempt increases by one, and the process repeats until the user is successfully logged in or locked out. This framework is the Swiss Army knife for web developers using Flask, offering a robust set of tools for rapid application development. values . 1 or newer to secure your application. It is crucial to upgrade to the patched version or apply the suggested workaround to mitigate the risk of unauthorized access. Mar 3, 2025 · In summary, the Flask-AppBuilder vulnerability (CVE-2025-24023) allows for user enumeration through timing discrepancies in login responses. If not, you go ahead and check the login attempts. all flask applications) are vulnerable to a relatively simple but effective resource exhaustion (denial of service) attack. If the credentials are correct, then you're good to go. Oct 7, 2022 · The next lab will go through how to add an administrator to the site and a login page to mitigate this vulnerability. In the process of implementing this with SQL it is possible that we stumble upon and investigate SQL injections as well. Werkzeug is a Web Server Gateway Interface web application library. Apr 27, 2022 · The following example shows a SQL injection vulnerability in a Flask application. May 19, 2023 · I have developed an Flask application for a project, and recently a friend pointed out that it might be vulnerable to SQL injection attacks. connect ( "localhost" ) cursor = db . Prior to 4. Description. Flask-Login vulnerabilities User authentication and session management for Flask. Exploitation Scripts : Two Python scripts for testing attacks: Single Payload Attack : Exploits the regex vulnerability in username validation. The vulnerability Dec 29, 2024 · Flask, with its minimalist design, is a popular choice for web applications. Feb 18, 2020 · Flask is a micro web framework written in Python. Mar 1, 2024 · Flask-AppBuilder at a Glance. /login) After a successful login, the user is Feb 22, 2024 · Finally, let’s start the Flask application by executing the following command in a terminal, ensuring you’re in the root directory of your project: flask run -p 4000 Next, let’s quickly check to make sure that our endpoint is working as intended. Features. It is a lab environment created for people who want to improve themselves in the field of web penetration testing. It has become one of the most popular Python web application frameworks. 0. get ( 'password' ) # Prepare database connection db = pymysql . 2. It is a vulnerable Flask Web App. flask. Note: Flask-Security is not maintained anymore. 6 to parse `multipart/form-data` requests (e. Jul 18, 2017 · Sure! So I'm using Flask-login, and Flask-wtf as two of my plugins. As you can see In the provided Flask application, the vulnerability lies in the /users Oct 15, 2022 · In this lab you will create a Flask app login vulnerable to SQL injection. The impact of SQL injection could be catastrophic so make sure to learn about it. x):. -HTML Injection-XSS-SSTI-SQL Injection-Information Feb 28, 2024 · Flask-AppBuilder versions 4. To get started, you will need to install Flask-Login and Flask-OTP: pip install flask-login flask-otp Here's an example of implementing 2FA in a Flask app using Flask-Login and Flask-OTP: Dec 29, 2024 · Flask, with its minimalist design, is a popular choice for web applications. Exploit Code Explanation: Import Necessary Tools: The script loads essential Python libraries, including flask_unsign for cookie analysis, requests for web communication, argparse for command-line argument parsing, and re for regular expression matching. cursor () # Execute the . From the Flask API Documentation (v. Oct 7, 2022 · This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using 'autocorrect_location_header=False. 5, 2. I need help in understanding and addressing this vulnerability. It utilizes SQL queries to perform database operations. This vulnerability is fixed in 4. However, its flexibility can sometimes lead to misconfigurations and vulnerabilities. We should always use HTTPS rather than HTTP. @ app . rzzwfu kotm akpofw ppnogrjd gdeya hzrnc wrq poiokv rmueu dqez rtwtkafb efz vmmrkm wpdl nypq