Re: [TLS] SSO Attacks in Browser

2022-04-12 Thread Kathleen Moriarty
Sent from my mobile device > On Apr 11, 2022, at 6:31 PM, Eric Rescorla wrote: > >  > Note that a password manager is a partial mitigation here, at least if it's > tied into the browser and automatically fills in based on origin, much like > WebAuthn is. > > -Ekr > > >> On Mon, Apr 11,

Re: [TLS] SSO Attacks in Browser

2022-04-11 Thread Eric Rescorla
Note that a password manager is a partial mitigation here, at least if it's tied into the browser and automatically fills in based on origin, much like WebAuthn is. -Ekr On Mon, Apr 11, 2022 at 3:13 PM Richard Barnes wrote: > Just to be clear: > > * These "picture in picture" attacks have

Re: [TLS] SSO Attacks in Browser

2022-04-11 Thread Richard Barnes
Just to be clear: * These "picture in picture" attacks have been around for years, as Ben points out. * WebAuthn is not vulnerable, because its assertions are bound to the origin, and a phishing site can't access the correct origin. * Anything that doesn't involve asymmetric cryptography will be

Re: [TLS] SSO Attacks in Browser

2022-04-11 Thread Kathleen Moriarty
Thank you, Ben. Much appreciated. I’ll think about this a bit more and a few others now are as well. Best regards, Kathleen Sent from my mobile device > On Apr 11, 2022, at 5:05 PM, Ben Schwartz wrote: > >  > > >> On Mon, Apr 11, 2022 at 4:42 PM Kathleen Moriarty >> wrote: >> >> >>

Re: [TLS] SSO Attacks in Browser

2022-04-11 Thread Kathleen Moriarty
Sent from my mobile device > On Apr 11, 2022, at 3:52 PM, Ben Schwartz wrote: > >  > I think there may be a misunderstanding here. According to my understanding, > these attack pages do not need to contain any actual subresources from the > SSO provider. They simply provide a login UI

Re: [TLS] SSO Attacks in Browser

2022-04-11 Thread Kathleen Moriarty
This has to be dealt with at the container interface for non-browser interfaces too, right? If there are OASIS and W3C WebAuthn active participants, it would be helpful to figure out the best place to deal with this issue. Thank you and sorry for a second message. Best regards, Kathleen On

[TLS] SSO Attacks in Browser

2022-04-11 Thread Kathleen Moriarty
Greetings! In thinking about the attacks prompting for credentials to access SSO credentials in browsers, I am wondering if the fix is in the interface to each type of storage container for credentials, e.g. OASIS PKCS#11, W3C WebAuthn, and maybe OAuth if that has been hit as well by these