Anti-forgery stands for “Act of copying or imitating things like a signature on a check, an official document to deceive the authority source for financial gains”. Now, in the case of web applications, it is termed as CSRF.

What is the anti-forgery token used for?

To prevent CSRF attacks, use anti-forgery tokens with any authentication protocol where the browser silently sends credentials after the user logs in. This includes cookie-based authentication protocols, such as forms authentication, as well as protocols such as Basic and Digest authentication.

How do I make an anti-forgery token?


Use the AntiForgeryToken() method instead. To specify custom data to be embedded within the token, use the static AntiForgeryConfig. AdditionalDataProvider property. Generates a hidden form field (anti-forgery token) that is validated when the form is submitted.

Is anti-forgery cookie?

Anti-forgery token’s main purpose is to prevent attacker using authentication cookie for doing things on behalf of the actual user. Since the user isn’t authenticated yet in the login page, there are customers removing the validation.

What is Antiforgery token in MVC?

To help prevent CSRF attacks, ASP.NET MVC uses anti-forgery tokens, also called request verification tokens. It verifies the tokens before accepting the request into ASP.NET MVC controller action which prevents the Cross Site Request Forgery.

What is CSRF example?

Cross-site request forgery is an example of a confused deputy attack against a web browser because the web browser is tricked into submitting a forged request by a less privileged attacker. CSRF commonly has the following characteristics: It involves sites that rely on a user’s identity.

Is CSRF still an issue?

Is CSRF Still Possible? Yes. Even with browsers adopting the SameSite by default policy, CSRFs are still possible under some conditions. First, if the site allows state-changing requests with the GET HTTP method, then third-party sites can attack users by creating CSRF with a GET request.

How do I test my anti forgery token?


  1. Go to the form.
  2. Use CSRF Tester to save the form request as a local HTML file.
  3. Login to your application as a different user.
  4. Use CSRF Tester to submit the saved form request.
  5. You should see an AntiForgeryToken error – since it will not validate.

What is AntiForgeryToken in web API?

Adding an AntiForgeryToken generates a Cryptographically valid hash at the server end which is split and a part is added as a hidden field, whereas the rest goes into a cookie. When data is posted, the Cookie and the Hidden Field are both sent back and if they are missing or they don’t match, the POST is rejected.

What is HTML helpers in MVC?

HTML Helpers are methods that return a string. Helper class can create HTML controls programmatically. HTML Helpers are used in View to render HTML content. It is not mandatory to use HTML Helper classes for building an ASP.NET MVC application.

What is bundling and minification in MVC?

Bundling and Minification are two performance improvement techniques that improves the request load time of the application. Most of the current major browsers limit the number of simultaneous connections per hostname to six. It means that at a time, all the additional requests will be queued by the browser.

What is model binding in MVC?

ASP.NET MVC model binding allows mapping HTTP request data with a model. It is the procedure of creating . NET objects using the data sent by the browser in an HTTP request. Model binding is a well-designed bridge between the HTTP request and the C# action methods.

What is the difference between TempData ViewData and ViewBag?

To summarize, ViewBag and ViewData are used to pass the data from Controller action to View and TempData is used to pass the data from action to another action or one Controller to another Controller.

What is life cycle of MVC?

The life cycle is basically is set of certain stages which occur at a certain time. Application Life Cycle. MVC actually defined in two life cycles, the application life cycle, and the request life cycle. The application life cycle, in which the application process starts the running server until the time it stops.

What is a ViewBag?

In simple terms “ViewBag is the data holder that enables the definition of a dynamic property and holds the data that can be passed from a controller to a view“.

How many types of routing are there in MVC?

MVC 5 supports a new type of routing, called attribute routing. As the name implies, attribute routing uses attributes to define routes. Attribute routing gives you more control over the URIs in your web application. The earlier style of routing, called convention-based routing, is still fully supported.

What is ViewBag and ViewData?

ViewData is a dictionary of objects that is derived from ViewDataDictionary class and accessible using strings as keys. ViewBag is a dynamic property that takes advantage of the new dynamic features in C# 4.0. ViewData requires typecasting for complex data type and check for null values to avoid error.

Why routing is used in MVC?

Routing enables us to define a URL pattern that maps to the request handler. This request handler can be a file or class. In ASP.NET Webform application, request handler is . aspx file, and in MVC, it is the Controller class and Action method.

What is controller in MVC?

A controller is responsible for controlling the way that a user interacts with an MVC application. A controller contains the flow control logic for an ASP.NET MVC application. A controller determines what response to send back to a user when a user makes a browser request.

What is routing in MVC?

Routing is the process of directing an HTTP request to a controller and the functionality of this processing is implemented in System. Web. Routing. This assembly is not part of ASP.NET MVC. It is actually part of the ASP.NET runtime, and it was officially released with the ASP.NET as a .

What is the difference between controller and API controller?

The main difference is: Web API is a service for any client, any devices, and MVC Controller only serve its client. The same because it is MVC platform.

What is ASP controller?

Controllers are essentially the central unit of your ASP.NET MVC application. It is the 1st recipient, which interacts with incoming HTTP Request. So, the controller decides which model will be selected, and then it takes the data from the model and passes the same to the respective view, after that view is rendered.

What is a controller API?

Web API Controller is similar to ASP.NET MVC controller. It handles incoming HTTP requests and send response back to the caller. Web API controller is a class which can be created under the Controllers folder or any other folder under your project’s root folder.

What is filter MVC?

What are filters in MVC? Filters are used to execute custom logic before or after executing the action method. ASP.NET MVC provides filters for this purpose. ASP.NET MVC Filter is a custom class where we can write custom logic to execute that before or after an action method is executed.

What are the return types in MVC?

There are 7 types of content returning results:

  • ViewResult.
  • PartialViewResult.
  • ContentResult.
  • EmptyResult.
  • FileResult.
  • JsonResult.
  • JavaScriptResult.

What is ActionResult and ViewResult in MVC?

ActionResult is an abstract class, and it’s base class for ViewResult class. In MVC framework, it uses ActionResult class to reference the object your action method returns. And invokes ExecuteResult method on it. And ViewResult is an implementation for this abstract class.

How many types of filters are there in MVC?

The ASP.NET MVC framework supports four different types of filters: Authorization filters – Implements the IAuthorizationFilter attribute. Action filters – Implements the IActionFilter attribute. Result filters – Implements the IResultFilter attribute.