From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2F3CC6369E for ; Thu, 19 Nov 2020 14:34:21 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [63.128.21.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 002402468B for ; Thu, 19 Nov 2020 14:34:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="I33V98TB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 002402468B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=tempfail smtp.mailfrom=linux-audit-bounces@redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1605796459; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post; bh=MZmFwpDZqYaVYuTVr5mfNwNgqWyBUCnT/IHlT56WovI=; b=I33V98TB43Pfle/F3Ivd/QY/hIfJFbUzolEUUDYrRC3VEelJwT7aieU2aUBAYEAbE9730Z z4h3XvcbfkXN/b0QBw67nXMu0ZtqyRBodgsHcxajEWL3NdaLl9PiVUf+LvcUWUOxtZii2R HoJL2PLgbXaahOu2wjkmmjdH9IXsZEg= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-226-IIDI4jtpP8ax6JYrq2jhVg-1; Thu, 19 Nov 2020 09:34:17 -0500 X-MC-Unique: IIDI4jtpP8ax6JYrq2jhVg-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id F1BC68145E1; Thu, 19 Nov 2020 14:34:13 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 7098E60853; Thu, 19 Nov 2020 14:34:13 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 0982D4A7C6; Thu, 19 Nov 2020 14:34:13 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 0AJEY9v5012328 for ; Thu, 19 Nov 2020 09:34:09 -0500 Received: by smtp.corp.redhat.com (Postfix) id B0BCD60853; Thu, 19 Nov 2020 14:34:09 +0000 (UTC) Received: from x2.localnet (ovpn-116-44.rdu2.redhat.com [10.10.116.44]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5CC7260843; Thu, 19 Nov 2020 14:34:06 +0000 (UTC) From: Steve Grubb To: Linux-audit@redhat.com, Andreas Hasenack Subject: Re: Default logging with no rules Date: Thu, 19 Nov 2020 09:34:04 -0500 Message-ID: <3080581.aeNJFYEL58@x2> Organization: Red Hat In-Reply-To: References: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-loop: linux-audit@redhat.com X-BeenThere: linux-audit@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Linux Audit Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-audit-bounces@redhat.com Errors-To: linux-audit-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=linux-audit-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Thursday, November 19, 2020 9:04:24 AM EST Andreas Hasenack wrote: > I read in an old presentation (~2011) that these come from "trusted > apps", There are only 10 - 15 apps that are "trusted apps". They are logging events that are required by various security standards such as common criteria, DISA STIG, PCI DSS, etc. > and in fact any process with cap_audit_write (iirc) can log > such events. While that may be true, it is generally not the case that they do in fact log. > The tip was that exclude/never list/action could be used to reduce this > noise, is that still the case and recommended approach? If you must, sure. Trusted app events are in the 1100-1199 range. But which app is causing the problems that you see? In the past, we had to silence crond because it was noisy. > Or is there a way to use audit with only the rules defined in /etc/audit/ > rules.d? The rules in that dir are insufficient to fulfill regulatory requirements. If you are doing some kind of syscall experiment, then I can see that you might want to turn them off. But if your aim is meeting some kind of standard, then other events are required. -Steve -- Linux-audit mailing list Linux-audit@redhat.com https://www.redhat.com/mailman/listinfo/linux-audit