Comment by Left5250
13 hours ago
Nothing stops them from doing so, but major browsers and possibly other programs won't trust such certificates. https://en.wikipedia.org/wiki/Certificate_Transparency#Manda...
13 hours ago
Nothing stops them from doing so, but major browsers and possibly other programs won't trust such certificates. https://en.wikipedia.org/wiki/Certificate_Transparency#Manda...
Yes but a lot of non-browser software doesn't check CT logs, so if an attacker were to target such software they could use an unlogged cert and no one would notice.
This is why there are OS trust stores. Electron - if you use the system CA [0] and cURL[1] apps use it, which are you talking about?
[0]: https://github.com/electron/electron/issues/45674
[1]: https://curl.se/docs/sslcerts.html
The CT log is a property of the individual leaf certificate not a property of the issuing chain. You could have the same CA in the trust store issue an unlogged certificate and non browsers would trust it.
4 replies →
Curl does not check that certificates have a valid SCT attached. Thus it will accept a certificate that isn't in the CT logs. That's mostly independent of the OS trust stores.