From owner-freebsd-bugs@FreeBSD.ORG Wed Sep 26 01:40:07 2007 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3E3E416A469 for ; Wed, 26 Sep 2007 01:40:07 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id E883613C44B for ; Wed, 26 Sep 2007 01:40:06 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.1/8.14.1) with ESMTP id l8Q1e62a012149 for ; Wed, 26 Sep 2007 01:40:06 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.1/8.14.1/Submit) id l8Q1e6xm012148; Wed, 26 Sep 2007 01:40:06 GMT (envelope-from gnats) Resent-Date: Wed, 26 Sep 2007 01:40:06 GMT Resent-Message-Id: <200709260140.l8Q1e6xm012148@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, "James L. Lauser" Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CEDD716A419 for ; Wed, 26 Sep 2007 01:35:32 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [IPv6:2001:4f8:fff6::21]) by mx1.freebsd.org (Postfix) with ESMTP id AD33B13C455 for ; Wed, 26 Sep 2007 01:35:32 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.14.1/8.14.1) with ESMTP id l8Q1ZWTm072868 for ; Wed, 26 Sep 2007 01:35:32 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.14.1/8.14.1/Submit) id l8Q1ZWvG072867; Wed, 26 Sep 2007 01:35:32 GMT (envelope-from nobody) Message-Id: <200709260135.l8Q1ZWvG072867@www.freebsd.org> Date: Wed, 26 Sep 2007 01:35:32 GMT From: "James L. Lauser" To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/116645: pfctl -k does not work in securelevel 3 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Sep 2007 01:40:07 -0000 >Number: 116645 >Category: kern >Synopsis: pfctl -k does not work in securelevel 3 >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: change-request >Submitter-Id: current-users >Arrival-Date: Wed Sep 26 01:40:06 GMT 2007 >Closed-Date: >Last-Modified: >Originator: James L. Lauser >Release: 6.2-STABLE >Organization: >Environment: FreeBSD Pancake.jlauser.net 6.2-RELEASE-p4 FreeBSD 6.2-RELEASE-p4 #7: Mon May 28 21:18:23 EDT 2007 root@Pancake.jlauser.net:/usr/obj/usr/src/sys/SMP_POLLING amd64 >Description: When in network secure mode (kern.securelevel=3), pfctl -k does not work, as DIOCKILLSTATES is not permitted. I believe this is counter-intuitive. If a rule such as "block drop quick from to any" is present, it is possible to firewall an attacking host by executing 'pfctl -t blacklisted -T add 1.2.3.4', even in network secure mode, but any states that the particular host already has open continue to work, as state table evaluation is done before rule evaluation. >How-To-Repeat: Set kern.securelevel to 3, and attempt to kill a firewall state with pfctl -k. >Fix: Do not prevent calls to DIOCKILLSTATES when in securelevel 3. >Release-Note: >Audit-Trail: >Unformatted: