On Saturday, October 23, 2004 at 1:34:00 PM [GMT -0500], Army Redleg
wrote:

> Not a popular subject I take it, as it dies fairly quickly without
> being entertained as a valid issue. 

Perhaps because not many have this problem. I'd normally not be too
inclined to discuss a problem that doesn't affec me, but in this case
I'll offer an opinion. :) I do use SSL/TLS, but I don't have the problem
you're having since I do get offered all the certificate info/parts.

> While I consider it a bug- or at least annoying at a minimum, I figure
> with a subject of "Feature wish" it my get some actual consideration
> over me beating that 'dead horse' again...

Not to worry. You'll not be admonished for bringing this up more than
once. However, the technically oriented members here tend to be
sensitive about TB! being accused of buggy behaviour when it simply
fails to cater to non-standard behaviour by servers. It doesn't really
have to do this. It's the server admins who really aught to get their
act together. However, I'm pragmatic on issues as these and understand
that in the end, it's the users comfort and not standards conformation
battles that do matter at the very end. I do realize that conformation
to standards and user comfort do go hand in hand, so the clients and
servers really aught to remain compliant.

Providing workarounds is a really sensitive issue. Though it makes the
user less frustrated in the end, one wonders what it will do to those
who keep breaching the agreed on standards and getting away with it.
They'll breach it again, and again, and again. Should this be allowed
for security standards, especially when the breach is clearly not in the
spirit of good security? 

> Discussion-
> Whenever the POP/IMAP/SMTP server fails to provide the root/CA
> certificate or full chain with the server certificate TB! pops up an
> "Unknown CA certificate" warning.

Shouldn't it?

> In this warning dialog box is a few buttons with "OK" and "CANCEL"
> always selectable, giving temporary/session permission, but "View
> Certificate" and "Add to Trusted" are not selectable unless the server
> provides a full certificate chain.

Well, the certificate cannot be viewed without all the information. How
can it be trusted without the full cert chain? So these are greyed out.

> Not being able to view and or add to trusted forces the user to
> manually OK the session each and every time a connection is made to
> these servers. On accounts where this is true and automatic checking
> for new mail is set this dialog box can be hidden behind other windows
> and even hang the client and/or system if not answered in a timely
> fashion.

So you're wishing for a trust anyway button? :)

> Recommendation-

> The "Unknown CA Certificate" dialog box must give the User the ability
> to always select "View" allowing for a verification of server cert
> presented.

> When viewing certificates in this manner a "hash" or digital fingerprint
> should be made of the certificate that TB! will check against in all
> future sessions to protect against sudden changes, tampering, MitM
> issues, etc...

> The "Unknown CA Certificate" dialog box should give the User the ability
> to "Add to Trusted" any server certificate, chain complete or not, if
> they have viewed/verified and have determined this is from a server the
> User trusts (again, regardless if the server negotiates with a complete
> chain or not).
> ====

Interesting. Seems reasonable, though one wonders about the security of
it. I guess you're more interested in transmission encryption more than
strict authentication of the certificates? 

-- 
-= Allie =-
..... Using yesterday's technology to solve today's problems, tomorrow
__________________________________________________
IMAP [ Client: The Bat!� v3.0.1.33 | Server: MDaemon Pro ]
OS: Windows XP Pro (Service Pack 2)





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