Re: [phpwiki-checkins] CVS: phpwiki/lib WikiUserNew.php,NONE,1.1

Joby Walker schrieb:
> This looks good, but as I read this you are storing the 
> username&password (in human readable form) in the contents of a cookie 
> on the end-user's machine. This seems quite bad to me.  SOP, for web 
> sites is to store a cookie with a unique id (UID).  The cookie id plus 
> some unique features of the client (IP, browser, time, etc) are then 
> checked by the server against it's session database and if verified the 
> user is logged in (very similar to Kerberos).  But by storing the 
> username & password in the cookie, it someone reads the cookie they will 
> have complete access to that account.
>
> A quick review of the cookies currently in my broswer shows:
>
> 1) UID's are primarily used -- especially with commercial sites.
> 2) Passwords are not stored in cookies.
> 3) Userid's, if used instead of a UID, are encrypted.
> 4) Very little data is in human readable form -- and none of it is 
> critical info.
>
> If I am mistaken about what you are storing in the cookie ... then 
> ignore.  But I am quite worried about this development.

Well, I'm not so concerned about security with this password issue, 
since it's only a wiki. nothing serious.
If I store sensitive data in cookies I do a symeteric encryption with a 
secret key at the host, generated at install time.

but it's true that certain pref data shouldn't be stored in cookies: 
passwd (for security), email (. just the basic prefs for username and 
layout.
otherwise the user has to create a homepage.
okay?

but then we'll have to fix the login procedure also.

> On a better note the classes look good.  Having different classes with 
> common methods will be very helpful for the future of phpwiki.
--
Reini Urban
http://xarch.tu-graz.ac.at/home/rurban/



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