[4077] in bugtraq
in.telnetsnoopd [slackware]
daemon@ATHENA.MIT.EDU (JS/Illz)
Thu Feb 20 17:00:50 1997
Date: Thu, 20 Feb 1997 13:48:17 -0600
Reply-To: JS/Illz <jeff@NGBERT.ORG>
From: JS/Illz <jeff@NGBERT.ORG>
To: BUGTRAQ@NETSPACE.ORG
I'm not sure if this has been discussed or not, but in.telnetsnoopd is
exploitable on my Linux Slackware 2.0.27 system.
As most know, the standard in.telnetd was patched against the 'libroot'
exploit that made use of the "LD_PRELOAD" command in telnet. The patch (if
I remember correctly) blocked environment variables longer than xxxx from
being passed as an argument as "libroot" was. Unfortunately, it seems
someone overlooked telnetsnoop, as this is still exploitable.
Fix:
Edit your inetd.conf to reenable standard telnet, rather than snoop telnet.
Snooping is bad manners anyways =).
Jeff Sorensen <jeff@ngbert.org>
Programming/Graphic Arts
Admin: psionik.net/synapse
