When I'm trying to authorize by
curl -X POST -d "grant_type=password&username=myusername&password=mypassword" http://localhost:8000/oauth2/authorize/
I get 403 forbidden: CSRF validation failed. Request aborted. I can't understand why, any help would be appreciated.
By the way I use Django OAuth Toolkit for authentication.
Edit: I know about CSRF protection and how to use it in django view and forms, I'm using a package called Django OAuth Toolkit for oauth 2 authorization which shouldn't ask for csrf token. There is a little information here about what I'm tring to achieve.
I'm ashamed to say that I was sending the request to wrong url, I should have sent it to http://localhost:8000/oauth2/token/
curl -X POST -d "grant_type=password&username=myusername&password=mypassword&client_id=myclientid" http://localhost:8000/oauth2/token/
You need to add csrf token in your POST data.
https://docs.djangoproject.com/en/dev/ref/contrib/csrf/
It's probably worth your while reading the documentation on Django's built in Cross Site Request Forgery protection.
Any post to a Django view will need the csrfmiddlewaretoken set, otherwise you'll get a 403. You'll need to either include it, or exempt your view from CSRF protection (prefer the former approach if possible).
Related
In Django world, CSRF token is generated in a way that doesn't involve any information known only to the server. It's perfectly possible to generate a valid CSRF token in javascript - Django will happily accept it.
In particular, one could have a piece of javascript that generates valid CSRF token and sets it as a cookie (and it will work fine because of the same origin).
Are there any security related drawbacks of doing that? The only thing I can think of is that such cookie cannot have the http-only flag set (for obvious reasons).
The short answer is No
CSRF is a solution to restrict CSRF attacks. So in the server, a code is generated (and signed) to check is user using built-in js codes or not. for example, a user can call a function without CSRF protection in the browser console or with a browser extension or with curl without any browser, in this condition, you cannot understand is user knows this function call or not!
On the other side, you want to make a new CSRFTOKEN and send it to the server with ajax and this service cannot protect with CSRF. So the hackers can use this ajax call for CSRF forgery! And the hacker can find your CSRF maker code in your js libraries.
For your Idea, you can use some user info and save it in session info such as use-agent, client-IP, and ...
I am getting this error please haldle the csrf token in django project.When I first made an AJAX call with a POST request, I got a HTTP 403 Forbidden error. A quick debug led me to the CSRF authorisation problem. The backend refused to authorise the request because there is no accompanying CSRF token to prove that the request is not from a foreign site.
From the documentation:
"The CSRF middleware and template tag provides easy-to-use
protection against Cross Site Request Forgeries. This type of attack occurs when a malicious website contains a link, a form button
or some JavaScript that is intended to perform some action on your
website, using the credentials of a logged-in user who visits the
malicious site in their browser."
Therefore, when making a POST request, you should always include a CSRF token.
For more information, including how to use it with AJAX calls, please refer to the documentation:
https://docs.djangoproject.com/en/3.0/ref/csrf/
I'm developing a backend for a mobile app with Django where for user registration the user data are sent with the POST method. Since Django provide CSRF security as a middleware. Here my problem is if I have a front end I can enable CSRF token by jinja code as {% csrf_token %} but since it's a backend and how to resolve this problem
To guard against these type of attacks, you need to do two things:
1 Ensure that the 'safe' HTTP operations, such as GET, HEAD and OPTIONS cannot be used to alter any server-side state.
2 Ensure that any 'unsafe' HTTP operations, such as POST, PUT, PATCH and DELETE, always require a valid CSRF token.
If you're using SessionAuthentication you'll need to include valid CSRF tokens for any POST, PUT, PATCH or DELETE operations.
In order to make AJAX requests, you need to include CSRF token in the HTTP header, as described in the Django documentation.
Check this link. It explains exactly what your approach should be.
Basically you need to send csrf token in the header if you want the POST request to have csrf. But we do not ask for csrf tokens for non authenticated requests.
It would be better if you go with Django Rest Framework to create APIs if you aren’t already using it
One solution is to remove csrf token line form setting.py file :)
I have a React frontend running at frontend.example.com and a Django backend with DRF running at backend.example.com. I am using Django Session Authentication and I want to properly implement CSRF protection.
Taking the React login page frontend.example.com/login as an example. It's the first time for a user to visit the page. There is a form with a user and password and on submit a new POST request is created to the Django backend. To the best of my knowledge, the CSRF token cookie should already be included in this request, right?
How to obtain that CSRF token from the Django backend? I am thinking of doing a GET request to the Django backend on loading the login-page to obtain that CSRF token cookie. Is that the way to do it or is there any other best practice?
Django has a section for AJAX request and how to handle CSRF: AJAX
Using this method you should send the token over and over again for each post request. The other method is using CORS. in this method, you only respond to the domains that you already whitelisted with headers that are whitelisted as well. So, instead of getting and passing CSRF token, you check if the request is coming from the right domain and then you can respond to it. And combining with a token system for user authentication, you should be good.
You can use this package for handling CORS if you use DRF: django-cors-headers
Using rate limiting can also help you avoid spams and robots to do noticeable harm.
I'm using the chrome rest client to test the api calls.
A GET request is working fine but while making a POST request , getting 403 hidden response.
description is
CSRF verification failed. Request aborted
I'm setting as Content-Type=application/json.
One way would be to use #csrf_extempt, but seems to be good choice.
How to resolve above issue ?
Using #csrf_extempt is infact a good practice when you are providing an API to your site. Cross-site request forgery is what csrf is but in your case it won't be a forgery since an api can(should) be called from any site but yours.
.
Moreover sharing csrf token will prove to be very tricky.
In thre request, include an X-CSRFToken header with the CSRF token value obtained from the csrftoken cookie.