From owner-freebsd-security@FreeBSD.ORG Wed Feb 11 15:12:33 2009 Return-Path: Delivered-To: freebsd-security@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 64B0B1065675 for ; Wed, 11 Feb 2009 15:12:33 +0000 (UTC) (envelope-from daniel@roe.ch) Received: from calvin.ustdmz.roe.ch (calvin.ustdmz.roe.ch [IPv6:2001:41e0:ff17:face::26]) by mx1.freebsd.org (Postfix) with ESMTP id AF7738FC13 for ; Wed, 11 Feb 2009 15:12:32 +0000 (UTC) (envelope-from daniel@roe.ch) Received: from roe (ssh-from [212.254.178.176]) by calvin.ustdmz.roe.ch (envelope-from ) with LOCAL id 1LXGlK-000NPW-KN ; Wed, 11 Feb 2009 16:12:30 +0100 Date: Wed, 11 Feb 2009 16:12:30 +0100 From: Daniel Roethlisberger To: Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?= Message-ID: <20090211151230.GA89737@hobbes.ustdmz.roe.ch> Mail-Followup-To: Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?= , Jason Stone , freebsd-security@freebsd.org, Lyndon Nerenberg References: <200902090957.27318.mail@maxlor.com> <20090209170550.GA60223@hobbes.ustdmz.roe.ch> <20090209134738.G15166@treehorn.dfmm.org> <86eiy5nqjz.fsf@ds4.des.no> <20090211122200.GA86644@hobbes.ustdmz.roe.ch> <86skmlm6aa.fsf@ds4.des.no> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <86skmlm6aa.fsf@ds4.des.no> User-Agent: Mutt/1.4.2.3i Cc: Jason Stone , Lyndon Nerenberg , freebsd-security@freebsd.org Subject: Re: OPIE considered insecure X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Security issues \[members-only posting\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Feb 2009 15:12:38 -0000 Dag-Erling Smørgrav 2009-02-11: > Daniel Roethlisberger writes: > > Your statement is of course correct, logging in from > > untrusted machines can never be secure. However, OPIE still > > raises the bar on the required capabilities for an attack > > (active, real-time attack versus passive keylogging / data > > dumping). > > This conversation reminds me of a flipchart outside the > terminal room at an early BSDCon, with a list of passwords > sniffed from the network and something like "if your password > is listed below, you should consider using SSH" :) :-) The technical "wrong" or "right" is just one aspect of security. Security is also about risk management; elimination being only one possible strategy for adequately dealing with risk. -- Daniel Roethlisberger http://daniel.roe.ch/