oss-security - Re: Checking existence of firewalled web servers in Firefox via iframe.onload

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Message-ID: <odkxbhada7uibrlt2cugy5g3kphubqjvbm3ksspkk5tu6ej62z@3iumiral5gxg>
Date: Tue, 18 Apr 2023 21:48:48 +0200
From: Jan Fader <oss-security@...erweb.de>
To: oss-security@...ts.openwall.com
Subject: Re: Checking existence of firewalled web servers in
 Firefox via iframe.onload

Hi Georgi

Am Tue 18. Apr. 2023, hat Georgi Guninski geschrieben:
> In short in Firefox 112, it is possible to check existence
> of firewalled web servers. This doesn't work in Chrome and Chromium 112
> for me.

I can reproduce this in Firefox 112, but also in Chromium 112.0.5615.121
and Edge 112.0.1722.48.

Regards
Jan

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