From owner-freebsd-security@FreeBSD.ORG Tue Jun 22 16:34:28 2004 Return-Path: Delivered-To: freebsd-security@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6ECF916A4CE for ; Tue, 22 Jun 2004 16:34:28 +0000 (GMT) Received: from radix.cryptio.net (radix.cryptio.net [64.81.55.119]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3CB9C43D41 for ; Tue, 22 Jun 2004 16:34:27 +0000 (GMT) (envelope-from emechler@radix.cryptio.net) Received: from radix.cryptio.net (localhost [127.0.0.1]) by radix.cryptio.net (8.12.10/8.12.10) with ESMTP id i5MGY7gV016899 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 22 Jun 2004 09:34:07 -0700 (PDT) (envelope-from emechler@radix.cryptio.net) Received: (from emechler@localhost) by radix.cryptio.net (8.12.10/8.12.10/Submit) id i5MGY71Y016898; Tue, 22 Jun 2004 09:34:07 -0700 (PDT) (envelope-from emechler) Date: Tue, 22 Jun 2004 09:34:07 -0700 From: Erick Mechler To: Didier Wiroth Message-ID: <20040622163407.GQ75424@techometer.net> References: <0HZP00GS3W981A@mail.etat.lu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0HZP00GS3W981A@mail.etat.lu> User-Agent: Mutt/1.4.2.1i cc: freebsd-security@freebsd.org Subject: Re: Opieaccess file, is this normal? X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Security issues [members-only posting] List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Jun 2004 16:34:28 -0000 :: >From what I've read so far, if the user is present in opiekeys, the :: opieaccess file determines if the user (coming from a specific host or :: network) is allowed to use his unix password from this specific network. :: :: As my opieaccess file is empty and the default rule (as mentionned in the :: man file) is deny, I should not be able to get an ssh shell with my standard :: unix password. OpenSSH on FreeBSD is PAM-enabled if ChallengeResponseAuthentication is set to yes: ChallengeResponseAuthentication Specifies whether challenge-response authentication is allowed. Specifically, in FreeBSD, this controls the use of PAM (see pam(3)) for authentication. Note that this affects the effec- tiveness of the PasswordAuthentication and PermitRootLogin vari- ables. The default is ``yes''. Does your /etc/pam.conf disble password authentication? Cheers - Erick