hello! I have the following security questions on the typeform oauth implementation:
thanks!
Best answer by picsoung
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+5
Hi
Would you mind sharing the call you made for updating the redirect URL?
As for your second question, I’m checking with our technical team for you. :)
If you think of anything else in the meantime, please let me know!
+5
Hi
We do check if the redirect_uri is part of the ones that were defined in the application settings. If it’s not you should see a “BAD REDIRECT URI” error.
And for your second question: if a user first authorized your app with accounts:read and forms:read scopes but later on you add another scope like forms:write. The second time they go through the authorization flow they should see the newly added scope.
Hope it makes sense
hello, thanks for getting back to me, I tried the following:
GET /login/oauth?client_id=BA8U1Z2G37NLMbi8rcyfWd8KVz5QxTDxdU7c1ErvSAEQ&redirect_uri=https%3A%2F%2Fec2-18-237-101-174.us-west-2.compute.amazonaws.com HTTP/2
Host: admin.typeform.com
and it returned back a HTTP/2 200 OK
Date: Thu, 14 Oct 2021 22:26:36 GMT
+5
Hi @essy,
I am not sure I understand what is your issue.
You can find more details about our oAuth flow and the different steps in our documentation.
If you are using Javascript you can find a working example over here.
Finally, if this is the first time implementing oauth, Anabella Spinelli wrote a really nice article to explain the “oauth dance”.
Keep us updated 😉
Hello, I was just asking if it’s a potential security vulnerability that the redirect_uri can be modified and the server returns a HTTP 200!
+5
My bad
Now I understand what you are saying.
If we wanted to follow REST standards, we should probably not return a 200 for this page if the redirect_uri is not allowed.
/login/oauth is not the correct route, our oauth flow starts on /oauth/authorize.
I am curious to see where you saw it; maybe it’s something in the documentation we need to update.
If you run the same request on /oauth/authorize route, you get a 400 as expected.
Let me know if I still didn’t understand your message 🤣
Ok thank you for the clarification, I was just reviewing the security around your oauth implementation and flow. Thanks!
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