this post was submitted on 28 Dec 2024
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[–] semperverus@lemmy.world 26 points 3 weeks ago (3 children)

"Hey there customer, if you want internet access on our network (the only one available in your area), you have to install our intermediary certificate on your machine!"

[–] hume_lemmy@lemmy.ca 8 points 2 weeks ago

Also $3/mon certificate fee. To bring you the best possible service.

[–] phoenixz@lemmy.ca 5 points 3 weeks ago (1 children)
[–] semperverus@lemmy.world 12 points 3 weeks ago (1 children)

"Oh sorry, looks like we couldn't decrypt that traffic, those packets went to the burn pile"

[–] asdfasdfasdf@lemmy.world 1 points 2 weeks ago (1 children)

How do they know what qualifies as "encrypted" vs a binary blob that could be a photo or something?

[–] semperverus@lemmy.world 1 points 2 weeks ago

File headers, magic bits, all sorts of stuff. Plus you can (and they do) try to load common file types, so if a PNG isn't loading correctly, it fails the test.

[–] exu@feditown.com 3 points 2 weeks ago (2 children)

From having worked in an enterprise environment, there's a chunk of websites that break when you intercept their SSL connection.

[–] frayedpickles@lemmy.cafe 2 points 2 weeks ago (1 children)

Hopefully all of them, since that's how network security works

[–] exu@feditown.com 2 points 2 weeks ago (1 children)

Not really, because the client system is configured to go through the proxy. That proxy will connect to the website and do filtering on the unencrypted content because it is initiating the connection. Next it'll re-encrypt everything with its own certificate and serve it to the client.

[–] frayedpickles@lemmy.cafe 2 points 2 weeks ago (1 children)

Oh you're talking about enterprise scale mitm attacks on your own coworkers not the general case.

[–] exu@feditown.com 1 points 2 weeks ago

Yes, but that's what you would need to do and get if everyone had to install an intermediate cert.

[–] semperverus@lemmy.world 2 points 2 weeks ago

Oh yea definitely, I know this pain very well