Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 24 Oct 2002 10:58:27 -0700
From:      Tim Kientzle <kientzle@acm.org>
To:        current@FreeBSD.ORG
Subject:   Re: Request: remove ssh1 fallback
Message-ID:  <3DB834C3.8010601@acm.org>
References:  <bulk.29405.20021024004250@hub.freebsd.org>

next in thread | previous in thread | raw e-mail | index | archive | help
Thus spake Lucky Green <shamrock@cypherpunks.to>:
>>... remove ssh1 fallback from the default ...

David Schultz <dschultz@uclink.Berkeley.EDU> wrote:
> Removing SSH 1 ... is going to break compatibility ...


POLA: before breaking compatibility, warn people.
It's simple to modify the ssh client so that it
emits a warning message before downgrading

"Warning: switching to less-secure SSH1 protocol"

On the server side, you could certainly log
a warning; there may be a way to notify the
connecting user as well.  The logged warning
could even include a very brief reference to
the setting required to disable SSH1 entirely.

Warnings like this do not break compatibility,
but do improve security by bringing these issues
to people's attention.  The usual method: leave
these warnings in for a year or two, _then_
disable SSH1 by default.  Of course, if
we have to wait for Solaris to catch up, then
maybe we need a ten-year transition.  ;-)

Tim Kientzle





To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-current" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3DB834C3.8010601>