From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp1 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id wIZyGcezzl9eQAAA0tVLHw (envelope-from ) for ; Mon, 07 Dec 2020 22:59:19 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp1 with LMTPS id CIs0Fcezzl+YOgAAbx9fmQ (envelope-from ) for ; Mon, 07 Dec 2020 22:59:19 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 5D67E9404CE for ; Mon, 7 Dec 2020 22:59:14 +0000 (UTC) Received: from localhost ([::1]:42316 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kmPTK-0005K3-UQ for larch@yhetil.org; Mon, 07 Dec 2020 17:59:10 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:42788) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kmPTC-0005Je-8O for bug-guix@gnu.org; Mon, 07 Dec 2020 17:59:02 -0500 Received: from debbugs.gnu.org ([209.51.188.43]:44279) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kmPTC-0001FG-0b for bug-guix@gnu.org; Mon, 07 Dec 2020 17:59:02 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kmPTB-0004nr-Re for bug-guix@gnu.org; Mon, 07 Dec 2020 17:59:01 -0500 X-Loop: help-debbugs@gnu.org Subject: bug#44808: Default to allowing password authentication on leaves users vulnerable Resent-From: Mark H Weaver Original-Sender: "Debbugs-submit" Resent-CC: bug-guix@gnu.org Resent-Date: Mon, 07 Dec 2020 22:59:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 44808 X-GNU-PR-Package: guix X-GNU-PR-Keywords: security To: "Dr. Arne Babenhauserheide" , Christopher Lemmer Webber Received: via spool by 44808-submit@debbugs.gnu.org id=B44808.160738192618425 (code B ref 44808); Mon, 07 Dec 2020 22:59:01 +0000 Received: (at 44808) by debbugs.gnu.org; 7 Dec 2020 22:58:46 +0000 Received: from localhost ([127.0.0.1]:55822 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kmPSw-0004n7-Jt for submit@debbugs.gnu.org; Mon, 07 Dec 2020 17:58:46 -0500 Received: from world.peace.net ([64.112.178.59]:33256) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kmPSu-0004mu-Qy for 44808@debbugs.gnu.org; Mon, 07 Dec 2020 17:58:45 -0500 Received: from mhw by world.peace.net with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kmPSn-0003Er-Pw; Mon, 07 Dec 2020 17:58:38 -0500 From: Mark H Weaver In-Reply-To: <871rg1e6js.fsf@web.de> References: <878sat3rnn.fsf@dustycloud.org> <874klgybbs.fsf@zancanaro.id.au> <87im9w2gjt.fsf@dustycloud.org> <87im9nmr5u.fsf@gmail.com> <87eek45lpg.fsf@gnu.org> <87k0twkt9c.fsf@dustycloud.org> <87sg8hzvdx.fsf@gnu.org> <87a6upepwb.fsf@web.de> <87sg8hlfyu.fsf@dustycloud.org> <871rg1e6js.fsf@web.de> Date: Mon, 07 Dec 2020 17:57:45 -0500 Message-ID: <87im9ddy0r.fsf@netris.org> MIME-Version: 1.0 Content-Type: text/plain X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: maxim.cournoyer@gmail.com, 44808@debbugs.gnu.org Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Migadu-Flow: FLOW_IN X-Migadu-Spam-Score: -0.80 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of bug-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=bug-guix-bounces@gnu.org X-Migadu-Queue-Id: 5D67E9404CE X-Spam-Score: -0.80 X-Migadu-Scanner: ns3122888.ip-94-23-21.eu X-TUID: ZjXPi8ixBaSD Hi, "Dr. Arne Babenhauserheide" writes: > To nudge them to secure their system, guix system reconfigure could emit > a warning that this is a potential security risk that requires setting > an explicit value (password yes or no) to silence. I think this is a good idea. Likewise, in the Guix installer, I would favor asking the user whether or not to enable password authentication, after warning them that it is a security risk. I agree with Chris that password authentication is a significant security risk, but I also worry that if we simply disable it, it will catch some users by surprise and they may be quite unhappy about it. Regards, Mark