On 11/18/2014 05:44 PM, Reindl Harald wrote:
Am 18.11.2014 um 16:12 schrieb Michael Catanzaro:
On Tue, 2014-11-18 at 12:11 +0100, Florian Weimer wrote:
Firefox also builds a repository of intermediate certificates over time and uses them automatically to fill gaps in certificate chains for completely unrelated sites. This leads to somewhat non-predictable behavior regarding the set of sites to which Firefox can connect reliably. This is difficult to emulate in one-shot command line tools such as wget which do not keep any local state by default.
And that's arguably the biggest problem of all. The goal is to reduce certificate validation failures for users who have seen a particular intermediate cert before, but the effect is that web developers get false positives when testing whether their sites are set up properly or not. This just makes things worse in the long run.
true - *but* anybody responsible for a https site should at leat once per month run https://www.ssllabs.com/ssltest/ against it
https://victi.ms/ receives an “A+” rating, even though it lacks an intermediate certificate and connections from non-browser clients fail. You have to read the results carefully to discover that the site is misconfigured in a significant way.