Why Nostr? What is Njump?
2023-05-26 06:07:46
in reply to

bajax on Nostr: ​ grumbulon (⁠◠⁠‿⁠・⁠)⁠—⁠☆ God's Silliest Soldier wafu ...

OK, I have to back up and explain a bunch of shit about how attachments are handled on the fediverse to explain it, but I’ll keep it short…

In order for the file to execute, it needs to be on the same domain the victim is browsing from– if you accidentally load from sleepy.cafe a payload targeted at seal.cafe, it won’t work. Browser security measures prevent it.

What media proxy does is take attachements and serve them from the site you’re browsing from, as if all the attachemnts come from the same server. This makes it faster in some cases and prevents telling other sites which of your users are looking at which files. BUT– if sleepy.cafe was running media proxy, an attack targeted at seal.cafe users might in theory work, because it makes all attached files appear to come from the domain you’re browsing on.
Author Public Key
npub16rws74jzn42yjxw0jzm6pt9xqrdfjat6uge5atg2035w830n8v5sgnd9ze