From owner-freebsd-security Sun Jul 8 6:22:20 2001 Delivered-To: freebsd-security@freebsd.org Received: from gyw.com (gyw.com [209.55.67.177]) by hub.freebsd.org (Postfix) with ESMTP id 0A31437B401 for ; Sun, 8 Jul 2001 06:22:18 -0700 (PDT) (envelope-from tjk@tksoft.com) Received: from smtp3.tksoft.com (smtp3.tksoft.com [192.168.50.56] (may be forged)) by gyw.com (8.8.8/8.8.8) with ESMTP id FAA11658; Sun, 8 Jul 2001 05:32:20 -0700 Received: (from tjk@tksoft.com) by smtp3.tksoft.com (8.8.8/8.8.8) id EAA15423; Sun, 8 Jul 2001 04:47:41 -0700 From: "tjk@tksoft.com" Message-Id: <200107081147.EAA15423@smtp3.tksoft.com> Subject: Re: apache security question To: default013subscriptions@hotmail.com Date: Sun, 8 Jul 2001 04:47:40 -0700 (PDT) Cc: freebsd-security@FreeBSD.ORG In-Reply-To: from "default013 - subscriptions" at Jun 14, 2001 08:08:36 AM X-Info: None MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Just got back from vacation and saw this. Lots of software use the HEAD method to find out if a page has been modified. If it has, then it downloads the page. The HEAD method is a part of the HTTP protocol, and a very useful part of it. It prints the header for the requested page, but not the page itself. A GET request prints the header and the page. By removing the HEAD capability, you achieve nothing, but you will create problems for yourself. Troy > > Hello, I've been advised that someone is attempting to break into my box, > and I know that this person is knowledgeable so I've been watching for > unusual activity... > > I noticed this entry in one of my apache logfiles yesterday, and was > wondering if anyone could explain to me what this is: > > mydomainname.com otherguyshostname.com - - [12/Jun/2001:18:21:35 -0500] > "HEAD / HTTP/1.0" 200 0 "-" > > It appears to me like they somehow executed the 'head' command... how would > one do this, and how could you stop it? > > Thanks, Jordan > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-security" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message