[cosmo-dev] How unique are tickets? (more on security hole options)

Randy Letness randy at osafoundation.org
Thu Feb 21 10:15:25 PST 2008


Grant Baillie wrote:
> One thing I was realizing as I was implementing the ticket-generating 
> code for the Desktop, is that it's easiest to generate the tickets for 
> all shares an item is part of, regardless of which server the item is 
> shared on.
>
> Are ticket-ids uniqued enough that this is OK? Also, are there 
> security implications ("leaking" tickets to other servers, I guess) I 
> should worry about?
>
> It's certainly possible to try to generate tickets for only the server 
> we're dealing with, although in practice instances may be shared by 
> different server URLs, a well-known case in point being just http: vs 
> https: on the Hub. So, I'm somewhat reluctant to go add a bunch of 
> logic that may well be broken anyway.

You should be able to just include all tickets.  I can't think of any  
problems this would cause, other than including some extra data that 
will be ignored by the server.

-Randy



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