| From: Matt Robertson [mailto:[EMAIL PROTECTED] 
| By exposing the cfid and cftoken you are announcing to the world what
| your session identifier is.  In turn you are giving someone the
| opportunity to more easily manipulate it.  Sure someone can accept a
| cookie, read the value off the hard drive and then have the same info
| (I suppose you could make the read more difficult by not writing a
| cookie to disk and only using a session cookie) but by passing it via
| the url you are making the job as easy as possible for the attacker.

Another possible security issue is if people e-mail a link from the URL
bar to each other, that link will contain the cfid/cftoken then... It
doesn't look very clean, and if someone clicks the link before the
session has expired, then they are continuing someone elses session.

I have a feeling that the client is meaning something else - like no
username/password in the cookie or something. Having multiple users
sharing the same IP has nothing to do with cookies btw.

/Hugo

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