nanog mailing list archives

Re: Microsoft announces new ways to bypass security controls


From: David Lesher <wb8foz () nrk com>
Date: Mon, 15 Sep 2003 11:32:05 -0400 (EDT)


Speaking on Deep Background, the Press Secretary whispered:



We see that even when we offer POP with SSL and SMTP AUTH with SSL, few 
customers wind up using it. That there are continuing problems with the 
commercial certificate infrastructure doesn't help matters.

Examples of the problems:

1. Eudora contains root certificates only for Verisign and Thawte, and uses 
its own root certificate store, whereas Microsoft client tools (for all 
their other weaknesses) include a much broader array of root certificates. 
If you want to buy certs from someone other than Verisign (since they own 
Thawte) you have to talk users through integrating other root certs (or 
your cert) into their copies of Eudora. Or just use a private CA and talk 
your customers through importing the root cert from your private CA.

While the approval process for other certs in Eudora is obscure,
it at least works. I ran into a brick wall trying to get Infernal
Exploder for the Mac to accept same; the Windows version was not
a problem.

2. SSL incompatabilities: Eudora changed their method of negotiation with 
Eudora 5.2 and later. The result is an inability to negotiate TLS with 
Sendmail/Openssl. A configuration parameter in Eudora gets it to go back to 
the "old way" in their code, which works fine. But now we're talking about 
another case of talking an end user through a configuration. Might be OK 
for a corporate setting, but it gets pretty problematic for the ISP.


Note Eudora 6.0 has a public configuration setting for the flavor
of SSL.[1] Yes, it should be automagic but "the nice thing about
standards in this industry..." applies lots of places...




We've clearly got the mechanisms to allow encryption on the most important 
of the protocols. However the infrastructure and compatability issues make 
them more difficult to employ than should be the case.

That these problems show up at networking conferences (IETF, NANOG, etc.), 
though, really points to a larger problem. If network research, engineering 
and operations folks can't manage to get encryption deployed for 
themselves, how likely is it that end customers will use them?


WhatHeSaid. 

We really need to do a better job of begging/cajoling/requiring encryption. I
know one ISP that requires POP/SMTP be on SSL unless you're on their dialup,
and I've heard Worldnet does too. [true?] The rest?



[1] At least in the Mac version I can lay hands on..

-- 
A host is a host from coast to coast.................wb8foz () nrk com
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433


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