[OAUTH-WG] Re: RFC 8898 - UAC security threats
Rifaat Shekh-Yusef <rifaat.s.ietf@gmail.com> Fri, 18 October 2024 18:07 UTC
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From: Rifaat Shekh-Yusef <rifaat.s.ietf@gmail.com>
Date: Fri, 18 Oct 2024 14:07:07 -0400
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To: Timothée Jaussoin <edhelas@movim.eu>
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Subject: [OAUTH-WG] Re: RFC 8898 - UAC security threats
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Hi Timothée, This document is the product of the SIPCore WG, not the OAuth WG. I suggest that you send this feedback to the SIPCore mailing list. Regards, Rifaat On Tue, Oct 15, 2024 at 8:21 AM Timothée Jaussoin <edhelas@movim.eu> wrote: > Hi, > > I'm currently implementing the RFC 8898 and I have a question regarding > this specific paragraph (in > https://www.rfc-editor.org/rfc/rfc8898#name-security-considerations) > > *The UAC MUST check the AS URL received in the 401/407 response against a > list of trusted ASs configured on the UAC in order to prevent several > classes of possible vulnerabilities when a client blindly attempts to use > any provided AS.* > > Is it possible to have some precision on the kind of vulnerabilities that > not checking the returned AS URL in the UAC could cause? This actually > change the purpose of this RFC as it doesn't allow anymore to discover some > new AS but more to guide the UAC to a specific AS based on its own list. > > Regards, > > Timothée Jaussoin > > _______________________________________________ > OAuth mailing list -- oauth@ietf.org > To unsubscribe send an email to oauth-leave@ietf.org >
- [OAUTH-WG] RFC 8898 - UAC security threats Timothée Jaussoin
- [OAUTH-WG] Re: RFC 8898 - UAC security threats Rifaat Shekh-Yusef