Vulnerability Development mailing list archives

Re: Malicious use of grc.com


From: Blue Boar <BlueBoar () thievco com>
Date: Mon, 26 Nov 2001 15:17:18 -0800

Thorsten Droigk wrote:

There are a lot of services on the Internet that portscan a machine of your
choice, so there is nothing new about grc.com doing it. If you want to
complain about grc.com, you should complain about every proxy in the whole
web, too. I do not think that there are big differences between these
services and proxies - both hide your original IP from another server but
simultanously log it for the case of abuse.
I cannot believe that grc.com really does not log the use of its portscan
service - that would be too stupid (and illegal, as far as I know). In my
eyes, the phrase "Information gained will NOT be retained, viewed, or used
by us in any way for any purpose whatsoever" refers to the results of the
portscans and not to the logs of grc.com's httpd.

This is one of those funny little things in the security world.  By trying,
and failing, to limit which IP address will be scanned, he has created
a security problem.  Had he not tried, there would be nothing to complain 
about.  It's not quite as hypocritical as it sounds.  He created the 
specification, and he violated it.  

                                        BB


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