[Zope] Major security flaw in Zope 2.3.2
Ellis, Neil (FNB)
EllisN@fnb.co.uk
Thu, 7 Jun 2001 16:49:15 +0100
Sorry if I'm misunderstanding the current conversation.
The difference seems to be that a Mailman user is only dealing with e-mail
however a Zope user may be making purchases and therefore their password may
be more sensitive.
Many regards
Neil Ellis
> -----Original Message-----
> From: barry@digicool.com [SMTP:barry@digicool.com]
> Sent: 07 June 2001 15:29
> To: Joachim Werner
> Cc: Jerome Alet; zope@zope.org
> Subject: Re: [Zope] Major security flaw in Zope 2.3.2
>
>
> >>>>> "JW" == Joachim Werner <joe@iuveno-net.de> writes:
>
> JW> I am really not against encrypted passwords. DC should
> JW> implement this soon. AFAIK the only reason for passwords not
> JW> being encrypted yet was that the encryption modules needed
> JW> were not available for all platforms or so.
>
> I'm coming in totally in the middle of this thread, and I only follow
> this list tangentially, but I thought I'd comment w.r.t. my experience
> in Mailman.
>
> One reason to keep passwords in the clear is to provide a mail-back
> service when a user forgets his or her password. If you store them in
> encrypted form, you can't really do this. (You could store
> user-supplied hints and mail those back, but that doesn't seem to work
> to well in my experience. I haven't seen any usability studies to say
> whether that's a useful approach or not.)
>
> In Mailman, we keep user passwords in the clear so we can do the
> monthly password reminders. However, the list admin passwords are
> kept as a sha1 hash - not in the clear. That means that if a list
> admin forgets his password, it's up to the site admin to assign them a
> new password. So far, this has been a workable trade-off.
>
> We have the advantage that user passwords don't protect a highly
> valuable resource; the worst that can happen is that they'll get
> unsubscribed from a list. Bad, but not catastrophic. List and site
> admin passwords are more valuable, so they affort a higher degree of
> security (and necessarily, less convenience).
>
> Side note: Mailman doesn't -- by default -- have SSL for its login
> pages, although I'm aware that some sites have augmented their Mailman
> installations to provide this. It would probably be a good idea to
> someday bundled this functionality.
>
> Cheers,
> -Barry
>
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