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Firefox Blocks 0.0.0.0 IP Addresses: Tell Us What This Means To You! (connect.mozilla.org)

submitted 1 week ago by [email protected] to c/[email protected]

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[–] [email protected] -1 points 1 week ago (2 children)

Um, OK? I dunno why you'd wanna block access to that IP.

[–] [email protected] 12 points 1 week ago* (last edited 1 week ago) (1 children)

The first hyperlink in that post explains exactly why:

https://www.oligo.security/blog/0-0-0-0-day-exploiting-localhost-apis-from-the-browser

[–] [email protected] 1 points 1 week ago

Oh man, I thought, it was some silly celebration day for the 0.0.0.0 address, so I didn't even click on the link at first.

[–] [email protected] 6 points 1 week ago

If a remote page can cause your browser to do fetches on your local machine, it can potentially poke at a lot of important stuff that has Web UIs running on the local machine.