Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937774AbXFGWcY (ORCPT ); Thu, 7 Jun 2007 18:32:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S937404AbXFGWcI (ORCPT ); Thu, 7 Jun 2007 18:32:08 -0400 Received: from web36601.mail.mud.yahoo.com ([209.191.85.18]:37177 "HELO web36601.mail.mud.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S937204AbXFGWcG (ORCPT ); Thu, 7 Jun 2007 18:32:06 -0400 X-YMail-OSG: FonEErwVM1kSc30KInG50D5ND_PMA4o_QHD8bnbxiqww80KuwTtR_y_Egdwa.EoicFwt4WjCfQ-- X-RocketYMMF: rancidfat Date: Thu, 7 Jun 2007 15:32:04 -0700 (PDT) From: Casey Schaufler Reply-To: casey@schaufler-ca.com Subject: Re: [PATCH] Audit: Add TTY input auditing To: Jan Engelhardt , Miloslav Trmac Cc: Steve Grubb , dwmw2@infradead.org, linux-kernel@vger.kernel.org, Alan Cox , Alexander Viro In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Message-ID: <713627.48330.qm@web36601.mail.mud.yahoo.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 750 Lines: 26 --- Jan Engelhardt wrote: > Someone please enlighten me why a regular keylogger? that captures > both input and output could not do the same. (Auditing what one has done.) 1. shell aliases # innocuous -p 0 2. shell variables # $INNOCUOUS -p 0 3. symlinks # ./innocuous -p 0 Yes, I know there are ways to prevent each of these "attacks", but it's surprising how often simple textual changes are effective in hiding behavior. Casey Schaufler casey@schaufler-ca.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/