For over 8 hours now, when trying to access Bing.com, you'll get a warning about their OCSP certificate (message from Firefox):
An error occurred during a connection to www.bing.com. Invalid OCSP signing certificate in OCSP response. Error code: SEC_ERROR_OCSP_INVALID_SIGNING_CERT
How pathetic is that? I mean, companies such as Microsoft are so big; don't tell me they don't have the human & technical knowledge to manage their certificates. Even an intern could write some kind of tool to ensure a warning is sent beforehand!
It's embarrassing that something that simple (cert & domain expiration) is still a frequent problem, and for BIG tech companies too!
Today, our users started seeing connectivity errors when trying to connect to most Microsoft on-line services like Hotmail, Onedrive, Outlook, Microsoft Live, and even the https version of the Bing search engine. The culprit? misconfigured servers on Microsoft's side, specifically their so-called "stapled OCSP responses".
Now, this gets technical rather quickly, so a quick summary of what this is all about:
[...]
What happened is that servers for the domains mentioned did not use the correct certificate chain to sign their stapled OCSP responses. As a result, connections to the related https servers started to fail. But, notably, only from browsers using NSS (like Pale Moon and Firefox). Chrome didn't complain (more on that later). Edge was apparently also fine, but I haven't looked into why that is, myself.From a browser's point of view, this should be considered (very) bad, because it looks like some other party (not being the authority that issued the certificate) is trying to tell the browser that a certificate isn't revoked. This party could be an attacker that is trying to use a revoked (mis-issued) certificate, for example.
Now, considering all browsers can be expected to support stapled responses, this highlighted a rather disturbing security issue with mainstream browsers: Apparently, only Pale Moon and Firefox (and rebuilds) are doing the correct thing.
https://forum.palemoon.org/viewtopic.php?f=1&t=15823
(Score: 2) by LoRdTAW on Wednesday May 31 2017, @12:42PM (1 child)
They simply optimized the hell out of it:
return(page)
(Score: 1, Interesting) by Anonymous Coward on Wednesday May 31 2017, @02:26PM
This makes me wonder how much recent improvements on browser speed benchmarks is due to convoluted ways of making the browser less secure.