Minor firefox DoS - semi silently polluting ~/Downloads with files (part 2)

Posted by Georgi Guninski on Jan 18

Minor firefox DoS - semi silently polluting ~/Downloads with files (part 2)

Tested on: firefox 121 and chrome 120 on GNU/linux

Date: Thu Jan 18 08:38:28 AM UTC 2024

This is barely a DoS, but since it might affect Chrome too we decided
to disclose it.

If firefox user visits a specially crafted page, then firefox
may create many files in `~/Downloads`,
The user is notified about this in a small dialog, but there is
no option to stop the...

Minor firefox DoS - semi silently polluting ~/Downloads with files

Posted by Georgi Guninski on Sep 05

This is barely a DoS, but since Chrome has explicit protection
against it, we decided to disclose it.

If firefox user visits a specially crafted page, then firefox
may create many files in `~/Downloads`,
The user is notified about this in a small dialog, but there is
no option to stop the downloads.
The potential denial of service is that the user must manually
delete the created files and this might be PITA.

Technically about the PoC: create...