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Message-ID: <20170418144057.1e9c2103@lxorguk.ukuu.org.uk>
Date: Tue, 18 Apr 2017 14:40:57 +0100
From: Alan Cox <gnomes@...rguk.ukuu.org.uk>
To: Greg KH <gregkh@...uxfoundation.org>
Cc: Matt Brown <matt@...tt.com>, jmorris@...ei.org, akpm@...ux-foundation.org,
linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org,
kernel-hardening@...ts.openwall.com
Subject: Re: [PATCH 1/4] added SECURITY_TIOCSTI_RESTRICT kernel config
> Since tty sessions are usually separated by different users, how would
> they have the same one and yet need something like this?
>
> Also, why not put this in the tty config section?
The normal attack use case people argue about is a rogue process on the
users machine sitting there waiting until the user has logged in to a
remote machine and is idle and then doing stuff.
Attackers of course don't bother doing that because it's easier to get
the user to run a different ssh client instead.
Alan
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