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Date: Tue, 30 Sep 2014 07:27:48 -0700
From: Michal Zalewski <>
Subject: Re: Healing the bash fork

> Florian's prefix/suffix patch is not going to protect against the setuid/setgid exploit that I reported to this list last week.
> I discuss the setuid/setgid vulnerability at the following site, including demonstrating how Florian's prefix/suffix patch provides no protection:

You do realize that your setuid program is patently unsafe, right? Say:

$ echo -e '#!/bin/sh\necho pwn3d' >date;chmod 755 date;PATH=.:$PWD


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