From owner-freebsd-bugs@FreeBSD.ORG Thu Oct 2 04:40:11 2003 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B48DA16A4B3 for ; Thu, 2 Oct 2003 04:40:11 -0700 (PDT) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id A645343FE1 for ; Thu, 2 Oct 2003 04:40:09 -0700 (PDT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.12.9/8.12.9) with ESMTP id h92Be9FY046388 for ; Thu, 2 Oct 2003 04:40:09 -0700 (PDT) (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.12.9/8.12.9/Submit) id h92Be9lB046387; Thu, 2 Oct 2003 04:40:09 -0700 (PDT) (envelope-from gnats) Resent-Date: Thu, 2 Oct 2003 04:40:09 -0700 (PDT) Resent-Message-Id: <200310021140.h92Be9lB046387@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, Bernd Luevelsmeyer Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 941A716A4B3 for ; Thu, 2 Oct 2003 04:29:58 -0700 (PDT) Received: from christel.heitec.net (christel.heitec.net [213.70.109.3]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5034543FDF for ; Thu, 2 Oct 2003 04:29:57 -0700 (PDT) (envelope-from bernd@heitec.net) Received: from heitec.net (paladin.heitec.net [193.101.232.30]) by christel.heitec.net (Postfix) with ESMTP id 122A2B8101 for ; Thu, 2 Oct 2003 13:29:54 +0200 (CEST) Received: (from bernd@localhost) by heitec.net (8.12.9/8.12.9) id h92BTr8o026696; Thu, 2 Oct 2003 13:29:53 +0200 (CEST) (envelope-from bernd) Message-Id: <200310021129.h92BTr8o026696@ heitec.net> Date: Thu, 2 Oct 2003 13:29:53 +0200 (CEST) From: Bernd Luevelsmeyer To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Subject: kern/57492: Firewall can be disabled in securelevel 3 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: Bernd Luevelsmeyer List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 02 Oct 2003 11:40:11 -0000 >Number: 57492 >Category: kern >Synopsis: Firewall can be disabled in securelevel 3 >Confidential: no >Severity: serious >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Oct 02 04:40:09 PDT 2003 >Closed-Date: >Last-Modified: >Originator: Bernd Luevelsmeyer >Release: FreeBSD 4.9-PRERELEASE i386 >Organization: >Environment: System: FreeBSD 4.9-PRERELEASE #0: Mon Sep 8 15:08:58 CEST 2003 i386 >Description: init(8) says, you cannot change ipfw rules in securelevel 3. It is possible, though, to disable the entire firewall, effectively deleting all rules and adding a rule "pass all from any to any". >How-To-Repeat: On a machine that has a firewall and runs in securelevel 3, as root enter sysctl net.inet.ip.fw.enable=0 You can now send and receive packets that otherwise would be rejected by the firewall. >Fix: unknown >Release-Note: >Audit-Trail: >Unformatted: