Re: SSH tunnel key exchange methods

From: Dave Page <dpage(at)pgadmin(dot)org>
To: Sven <svoop_6cedifwf9e(at)delirium(dot)ch>
Cc: pgAdmin Support <pgadmin-support(at)postgresql(dot)org>, Akshay Joshi <akshay(dot)joshi(at)enterprisedb(dot)com>
Subject: Re: SSH tunnel key exchange methods
Date: 2015-11-10 10:11:00
Message-ID: CA+OCxoxn9LWXPR=DQi0gnAkur+ZQch37OB8iH+0e7fGRH8-U=Q@mail.gmail.com
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Akshay;

Is this something that's fixable in our code, or do we need to update
libssh2, or...?

On Tue, Nov 10, 2015 at 8:39 AM, Sven <svoop_6cedifwf9e(at)delirium(dot)ch> wrote:
> Hi
>
> The key exchange methods offered when opening an SSH tunnel are all
> SHA1 and therefore too weak:
>
> [sshd] fatal: Unable to negotiate with xxx.xxx.xxx.xxx: no matching
> key exchange method found. Their offer:
> diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,
> diffie-hellman-group1-sha1 [preauth]
>
> Is it possible to update pgadmin for safer kexes? IMHO, at least
> diffie-hellman-group-exchange-sha256 would be nice, better even
> curve25519-sha256(at)libssh(dot)org as well.
>
> Thanks for considering this!
>
>
>
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--
Dave Page
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