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How are so many sites OK with using cloudflare when they are basically a MITM? (alien.top)

submitted 1 year ago by spottyPotty@alien.top to c/main@selfhosted.forum

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Regardless of whether or not you provide your own SSL certificates, cloudflare still uses their own between their servers and client browsers. So any SSL encrypted traffic is unencrypted at their end before being re-encrypted with your certificate. How can such an entity be trusted?

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[–] t1nk3rz@alien.top 1 points 1 year ago (2 children)

It's not entirely true what you said. I use cloudflare -> my Proxyserver -> my machines behind the Proxyserver

My Proxyserver has my own certificates loaded and terminates the SSL/TLS connection from cloudflare

Even if the data is passing through cloudflare cdn uses the cloudflare certificates my data is encrypted first using my own certificates from the Proxyserver

[–] schklom@alien.top 1 points 1 year ago

Even if the data is passing through cloudflare cdn uses the cloudflare certificates my data is encrypted first using my own certificates from the Proxyserver

This is false, connect to your website, check the certificate, it will be Cloudlfare's. I assume either you have not checked, or are a Business customer paying quite some money yearly to Cloudflare.

Cloudflare decrypts inbound traffic, then re-encrypts it before sending it to you, unless you pay a decent amount of money so that they serve your certificate.

[–] spottyPotty@alien.top 1 points 1 year ago (1 children)

When I visit one of the sites I manage, that goes through CF (my personal ones don't), I see that the certificate that the browser sees is one provided by CF and not the one that I create using LetsEncrypt.

[–] sjsathanas@alien.top 0 points 1 year ago

CF provides different encryption modes. So if it's "Full" you'll need a valid SSL cert on your server, which CF will use end-to-end. If it's "Flexible" (IIRC), then you don't need a cert on your server, in which case CF will use their own cert for encryption.