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superjosetoday at 5:53 AM1 replyview on HN

Pretty cool tbh!!! Would have loved seeing the decoder code!!!

It's also pretty interesting to think how an attacker could exploit images on his behalf. Never thought that would be a way!!!

Thanks!


Replies

schobitoday at 6:26 AM

I guess the decoder is more than the 208 bytes that this page uses..

But maybe you can misuse this and store a session ID / cookie in a favicon (give everyone a unique one) and survive some cookie cleanup and evade privacy restrictions?

Maybe you can still make it that the favicon looks like an image a little to not raise suspicion?

Favicons seem to be cached across private browsing sessions. Oh no

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