www.openssh.com certificate misconfiguration

Jochen Bern Jochen.Bern at binect.de
Sat Sep 4 01:14:40 AEST 2021


On 03.09.21 16:28, Dmitry Belyavskiy wrote:
> The site www.openssh.com is misconfigured and sometimes browsers refuse to
> connect because of hostname mismatch - the certificate provided by the site
> is issued for www.openbsd.org. Could you please fix it?

There is nothing broken - the server cert lists "www.openssh.com" in the
Subject Alternate Names (SANs), along with a dozen others.

The DN contains "www.openbsd.org" as the CN, but a) there can be only
one *there*, b) the current standards suggest that browsers(!) should
ignore the DN in favor of the SANs altogether, and c) before that, they
were supposed to accept *both* for quite a while.

Regards,
-- 
Jochen Bern
Systemingenieur

Binect GmbH

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