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From: Wade Maxfield <maxfield@ctelcom.net> > Many thanks to the moderator who pointed out errors and suggested the > correct information on this post. Over half the ideas are due to him. ;) > 1. Programs put data in local variables in functions. These variables > are on the computer stack. Feeding data to those variables (usually > string variables) causes the

Many thanks to the moderator who pointed out errors and suggested the correct information on this post. Over half the ideas are due to him. ;) Don't forget this is about writing your own daemon or TCP program. Some of the ideas here will not happen with today's software that has been hardened. It is presented to prevent your software from being taken advantage of. Most often,

After the recent attacks on the major servers on the web my ISP has decided to stop all ICMP messages from his ISP. I have red the RFCs and it seems that he cant do that... As a result pings and traceroutes will not work. I need a friendly person out there to tell me a way to break the news to him that he has to allow ICMP packets through his network... any suggestions would be helpfull [mod:

...nsfer-Encoding: 7bit Message-ID: <14404.30024.249000.591863@glynn.ingames.com> Date: Wed, 1 Dec 1999 02:09:25 +0100 (GMT--1:00) To: hgtaesml@umail.furryterror.org (Zygo Blaxell) Cc: <linux-security@redhat.com> Subject: [linux-security] Re: Programming ... In-Reply-To: <slrn847rok.dhq.zblaxell@washu.furryterror.org> References: <Pine.LNX.4.10.9911270940190.3182-100000@one.ctelcom.net> <m3iu2n4mlc.fsf@jfog-bb.dep.no> <slrn847rok.dhq.zblaxell@washu.furryterror.org> X-Mailer: VM 6.67 under 21.1 (patch 4) "Arches" XEmacs Lucid Zygo Blaxell wrote: > Del...

...-0400 Organization: A poorly-maintained Debian GNU/Linux InterNetNews site Message-ID: <8cacuh$4n1$1@sana.furryterror.org> References: <27BC18174C3CD2118F6000A0C99E423E026A17F3@CRPHEX02.NAVSSES.NAVY.MIL> NNTP-Posting-Host: 127.0.0.1 X-Header-Mangling: Original "From:" was <zblaxell@sana.furryterror.org> To: <linux-security@redhat.com> In article <27BC18174C3CD2118F6000A0C99E423E026A17F3@CRPHEX02.NAVSSES.NAVY.MIL>, <MeriwetherDJ@nswccd.navy.mil> wrote: >Well, last night, my box was hit again.. same symptoms: > >All attempts to connect remotely...

Here''s a neat trick for a machine running kerneld: not_root@machine$ /sbin/ifconfig isofs loads ''/lib/modules/(kernel version here)/fs/isofs.o''. /sbin/ifconfig when run as non-root queries a network interface for its configuration. However, if the interface is unknown it also tries to load the module that implements that interface using the name of the interface as