[cas-dev] renew flag can be bypassed

Scott Battaglia scott.battaglia at gmail.com
Thu Mar 1 17:59:06 EST 2007


The CAS Server 3, and Yale & JA-SIG clients should support it.  I'll have to
check on Acegi. A quick look makes it seem like it should work. I'll have to
go into the source code later.

-Scott

On 3/1/07, March, Andres <amarch at soe.sony.com> wrote:
>
>  I missed that in the protocol spec.  But I just tested this and it didn't
> work.  Also, there are comments in the Acegi client that this doesn't work
> yet.  I'm investigating and will try to provide more detail.  I was just
> curious if this feature wasn't functional until a particular version.  Do
> you know if it requires a specific version of the cas server, client, or
> acegi?
>
>
>
> - Andres
>   ------------------------------
>
> *From:* cas-dev-bounces at tp.its.yale.edu [mailto:
> cas-dev-bounces at tp.its.yale.edu] *On Behalf Of *Scott Battaglia
> *Sent:* Thursday, March 01, 2007 12:12 PM
> *To:* Mailing list for CAS developers
> *Subject:* Re: [cas-dev] renew flag can be bypassed
>
>
>
> If you the client application requests renew=true in the URL and the user
> removes it the authentication itself will continue.  However, when the
> client goes to validate a ticket it should  be specifying renew=true to the
> validator which would cause the validation of the ticket to fail.
>
> -Scott
>
> On 3/1/07, *March, Andres* <amarch at soe.sony.com> wrote:
>
> We have started to use the renew flag for the first time.  I have found
> that just by changing the login url (to remove renew=true) that the
> forwarding app redirects to, you can bypass renewal of credentials.
> Shouldn't CAS demand renewal on subsequent logins if renew was sent once and
> no re-authentication has occurred?  Further, shouldn't the CAS client
> require some indication that the credentials were renewed when the ticket
> was issued and it was not simply reusing an existing auth?
>
>
>
> I was thinking of placing a filter on CAS that deletes the CAS TGC when
> renew is passed.  This solves my first issue but not the second.
>
>
>
>
>
> Andres March
>
> Platform - Application Engineering
>
> Sony Online Entertainment
>
> desk: 858.577.3373
>
> cell:   619.519.1519
>
>
>
>
>
>
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