But isn’t for https the traffic supposed to be e2e encrypted between the client web browser and the server hosting the web page with the same cert? Does cloudflare decrypt and then re-encrypt the traffic data?
You see the problem. Yes, cloudflare decrypt the request from the browser, inspect it, then reencrypt it and send it to the host server. Then they take the response, decrypt that, inspect it, reencrypt it and send it to the browser.
Basically there are two TLS flows, one from the browser to cloudflare, and one from clourflare to the host server. Between those, on the cloudflare system, both the traffic and response are in plain text. That includes usernames, passwords (for HTTP basic auth anyway) and any sensitive data you send or receive.
Given that they front sonewhere between 19 and 40% of all websites, d£pending on whose stats you trust, that should be pretty alarming.
For cloudflare to encrypt the traffic they need the key.
But isn’t for https the traffic supposed to be e2e encrypted between the client web browser and the server hosting the web page with the same cert? Does cloudflare decrypt and then re-encrypt the traffic data?
Supposed and supposed… It’s easier to manage encryption and certificates on a layer above, you can reencrypt backwards with some whatever cert
You can of course not use cloudflares infra for this but then you lost a lot of insight and features
You see the problem. Yes, cloudflare decrypt the request from the browser, inspect it, then reencrypt it and send it to the host server. Then they take the response, decrypt that, inspect it, reencrypt it and send it to the browser.
Basically there are two TLS flows, one from the browser to cloudflare, and one from clourflare to the host server. Between those, on the cloudflare system, both the traffic and response are in plain text. That includes usernames, passwords (for HTTP basic auth anyway) and any sensitive data you send or receive.
Given that they front sonewhere between 19 and 40% of all websites, d£pending on whose stats you trust, that should be pretty alarming.
Thank you. I didn’t know that.