From owner-freebsd-hackers Sat Mar 3 1:25:31 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from homer.softweyr.com (bsdconspiracy.net [208.187.122.220]) by hub.freebsd.org (Postfix) with ESMTP id 2A2C037B71F for ; Sat, 3 Mar 2001 00:29:58 -0800 (PST) (envelope-from wes@softweyr.com) Received: from [127.0.0.1] (helo=softweyr.com ident=Fools trust ident!) by homer.softweyr.com with esmtp (Exim 3.16 #1) id 14Z7b6-0000Cu-00; Sat, 03 Mar 2001 01:41:04 -0700 Message-ID: <3AA0AE20.653196F8@softweyr.com> Date: Sat, 03 Mar 2001 01:41:04 -0700 From: Wes Peters Organization: Softweyr LLC X-Mailer: Mozilla 4.75 [en] (X11; U; Linux 2.2.12 i386) X-Accept-Language: en MIME-Version: 1.0 To: Alfred Perlstein Cc: Dan Phoenix , freebsd-hackers@FreeBSD.ORG Subject: Re: easy way to crash freebsd References: <20010302152553.H8663@fw.wintelcom.net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Alfred Perlstein wrote: > > > On Fri, 2 Mar 2001, Dan Phoenix wrote: > > > > > symbolic link /etc/resolv.conf > > > to a non-existant file....throw a bunch of connections at it > > > and watch it reboot. > > * Dan Phoenix [010302 15:24] wrote: > > > > People asking me how this could be used as a local user. > > Well i guess if you wanted to you could find something root runs > > that writes to /tmp then umask resolv.conf > > and echo "" > resolv.conf > > > > I am in no way supporting that...just answering a question. > > Try overwriting /dev/mem, it's much more interesting. You don't even have to overwrite it some times. Accessing word-size-only registers in memory a byte at a time can cause a bus error and panic... -- "Where am I, and what am I doing in this handbasket?" Wes Peters Softweyr LLC wes@softweyr.com http://softweyr.com/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message