[Openid-specs-ab] OpenID Connect Logout using HTTP GET

Torsten Lodderstedt torsten at lodderstedt.net
Sun Feb 15 16:08:45 UTC 2015


why do you consider this a risk?

kind regards,

Am 14.02.2015 um 10:05 schrieb Thomas Broyer:
> Hi,
> Isn't there a risk of an attacker logging a user out of a third-party 
> (victim) site just by loading that logout_url? At a minimum the RP 
> should check the request's origin or referrer but AFAIK this wouldn't 
> be reliable with such cross-origin requests (at least for older 
> browsers not sending an Origin header), but maybe the OP could compute 
> some value based on a shared secret, or use a signed JWT, and pass it 
> as a query string parameter to "authenticate" the request?
> Le sam. 14 févr. 2015 07:12, Mike Jones <Michael.Jones at microsoft.com 
> <mailto:Michael.Jones at microsoft.com>> a écrit :
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