so just did another test:
heise.de -> google login -> nothing to confirm at heise site that I BY
MYSELF DID ALLOW THAT. All only at google site:
We're using the following data, which is send to third party....
-> Please explain me now where the part is that I MUST CLICK this button
and not Google or any other identity "authority" can just do it without
my consent?
If it would be enforced at least there should be some sort of email
(like for any email registration) from the RS (heise) to the mail send
from the provider to confirm that the user really want it.
And yeah that's again the point: If I would use some mail provider and
email confirmation would be the "solution" it would help nothing as they
would have access to that as well.
That's why I try to say the whole time: THERE MUST BE some sort of
independent IDENTITY OWNER!!! trust grant enforcement.
Ae. on first login I could enter a own email that is not related to the
identity provider and the RS MUST send a verification link to this email
and this email will be the core account id.
There are many easy solutions if the problem will be realized. And I
really can't understand how this can't be seen.....
On 12/23/25 3:43 PM, Matthias Fulz wrote:
Ok than please explain me, where in the protocol itself is the part
that it is impossible without that "click" to impersonate by just
saying to the RS here it is?
Don't get me wrong if that's really integrated I was wrong and it's
all fine, but I can't see it.
Further tell me please how I can take control of like FB (if I would
have an account there) just registering my user on any site that is
providing login via, where I do not have an account?
Sorry it's all comming back to the point that the identity owner
itself is out of scope.
On 12/23/25 3:25 PM, Michael Sweet wrote:
Matthias,
On Dec 23, 2025, at 9:14 AM, Matthias Fulz
<[email protected]> wrote:
The problem is again you miss the main point:
it's not about issues with trust handling. It's all about MISSING
TRUST GRANTING of the Identity owner (USER) itself.
Again think about the following:
I've an account at service-cool-stuff with my mail [email protected] +
pw -> ok
service-cool-stuff enables login via Facebook -> oauth, etc. ok
I DO NOT HAVE ANY FACEBOOK RELATION!!!!!!
Facebook says ok here is the login for [email protected] signed by us
-> service-cool-stuff trusts -> login valid POINT.
Where is the part that I BY MYSELF have ever said that Facebook is
allowed to identify FOR ME ?????
Facebook validates that you have access to your email account. They
even make you setup a FB account to use the login via Facebook and
authorize using a password, passkey, etc.
Moreover, the RS had to be configured to provide login via Facebook,
and you (the user) had to click on it to start the authorization
process. If you don't want to authorize via FB, then don't click
that button.
________________________
Michael Sweet
_______________________________________________
OAuth mailing list -- [email protected]
To unsubscribe send an email to [email protected]
_______________________________________________
OAuth mailing list -- [email protected]
To unsubscribe send an email to [email protected]
