From owner-freebsd-arch@freebsd.org Tue Jun 20 17:17:56 2017 Return-Path: Delivered-To: freebsd-arch@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 209A4D9D629 for ; Tue, 20 Jun 2017 17:17:56 +0000 (UTC) (envelope-from joel@vnode.se) Received: from smtp.opsify.se (smtp.opsify.se [IPv6:2a07:6c5::4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "smtp.opsify.se", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id DAB446715C; Tue, 20 Jun 2017 17:17:55 +0000 (UTC) (envelope-from joel@vnode.se) Received: from ymer.vnode.se (62-20-154-136-no280.tbcn.telia.com [62.20.154.136]) by smtp.opsify.se (Postfix) with ESMTPSA id AF63A387AE8; Tue, 20 Jun 2017 19:17:44 +0200 (CEST) Date: Tue, 20 Jun 2017 19:17:44 +0200 From: Joel Dahl To: Michael Gmelin Cc: Baptiste Daroussin , Jeremie Le Hen , freebsd-arch@freebsd.org Subject: Re: rtools were deemed almost unused 15 years ago... Message-ID: <20170620171744.GA72667@ymer.vnode.se> Mail-Followup-To: Michael Gmelin , Baptiste Daroussin , Jeremie Le Hen , freebsd-arch@freebsd.org References: <20170620111136.fz5ovfa4imm3p4hj@ivaldir.net> <20170620155954.150dedc5@bsd64.grem.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170620155954.150dedc5@bsd64.grem.de> User-Agent: Mutt/1.8.0 (2017-02-23) X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Jun 2017 17:17:56 -0000 On Tue, Jun 20, 2017 at 03:59:54PM +0200, Michael Gmelin wrote: > > > On Tue, 20 Jun 2017 13:11:37 +0200 > Baptiste Daroussin wrote: > > > On Tue, Jun 20, 2017 at 12:25:46PM +0200, Jeremie Le Hen wrote: > > > Hey folks, > > > > > > I remember when I was still barely out of my teenagehood, people > > > were mostly using ssh/scp while rtools (rsh, rlogin, ... for the > > > youngsters) were left in place as a courtesy for legacy production > > > systems still relying it on them. > > > > > > Fast forward to 2017 (so yes, 15 years later), stack-clash [1] > > > sorely reminds us that suid binaries are an attack surface. I don't > > > even need to mention that it's a healthy engineering practice to > > > remove unused code, both from a maintenance and security > > > perspective. > > > > > > Therefore, I hereby propose to remove rtools from the base system. > > > I acknowledge this will likely cause troubles for a handful of > > > people who are still relying on it for good or bad reasons. But the > > > flipside is that the attack surface of millions of FreeBSD > > > installed out there will be reduced. > > > > > > The proposed roadmap is: > > > - disable from the build on head and let it soak for one month > > > - remove rtools from the base. > > > > > > What do you guys think? Any preferred color for the bikeshed? :) > > > > > > > > > > > > [1] https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt > > > > Yeah! > > > > Is telnetd part of your list? > > As long as the telnet(1) client stays in I'm all for it. +1. Please keep the telnet client. It's something I expect be part of the base system utilities. I use it all the time. -- Joel