this post was submitted on 08 Jun 2024
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The Cloudflare Poison (sh.itjust.works)
submitted 3 months ago* (last edited 3 months ago) by [email protected] to c/[email protected]
 

Daily reminder that sites "protected" by cloudflare are effectively MITM attacks. HTTPS is now even more worthless. Cloudflare can see everything. this is a known fact and not a theory.

And if you think Cloudflare aren't being tapped by the NSA, you're sadly sadly naive.

All the "privacy respecting" sites use it too. So remember, as soon as you see that cloudflare portal page, you can assume that everything you plug into the site is property of NSA Inc. Trust no one, and do not trust code being served to you over the web if it comes through CF, there is no way to know what they've modified.

Edit: good info link below https://serverfault.com/questions/662946/does-cloudflare-know-the-decrypted-content-when-using-a-https-connection

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[–] [email protected] 81 points 3 months ago (17 children)

Cloudflare is a MITM by design. Calling it an attack is disingenuous; you're signing up for the service of your own free will, not a victim.

If a substantiated news article came out showing that Cloudflare shared SSL keys or otherwise gave direct access to various intelligence agencies without a court order, that would essentially destroy the company. So they certainly aren't doing that.

So then the question becomes whether those nefarious three letter agencies penetrated Cloudflare with APT tools and are silently listening to everything. Our adversaries are certainly trying, China, Russia, Iran, etc. If the NSA (which lacks a mandate to act on US soil, and CF is a US company) or perhaps the FBI hacked a US company, particularly one that covers like a third of the internet like Cloudflare, that would be a truly enormous scandal.

But in the end, yes, it is a MITM. If you need your data to be E2E encrypted, don't use it.

[–] [email protected] 9 points 3 months ago (3 children)

I could imagine the NSA embedding an agent inside Cloudflare specifically to keep an eye out for any foreign agents also being embedded in Cloudflare, rather than to dig out its secrets for themselves.

[–] [email protected] 2 points 3 months ago

I'm sure the TLAs work closely in conjunction with all companies responsible for internet infrastructure, yeah. That is their mandate.

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