Vulnerability Development mailing list archives

Re: CodeGreen beta release (idq-patcher/antiCodeRed/etc.)


From: Ron DuFresne <dufresne () winternet com>
Date: Thu, 6 Sep 2001 19:44:07 -0500 (CDT)

On Thu, 6 Sep 2001, Stanley G. Bubrouski wrote:

On Thu, 6 Sep 2001, Emre Yildirim wrote:

It may sound unreasonable but using access-lists on routers on routers is
great way for companies and providers to stop the spread of Code Red.  By
blockign all traffic from a person's machine they are then forced to call
their provider's tech support to report they lost their connection.  The
provider then can inform the customer they are infected, explain to them
they must patch their system, remove them from the ACLs, wait 24 hours and
if they show signs they are patched then do not reapply the ACL.  Anotehr
way is to turn on router and firewall logging and use ACLs to log http
traffic and filter out Code Red infected users and call them and e-mail
them the patches.  This doesn't block the user from accessing the network
like the first method does, but it also doesn't prevent the infected user
from infecting more people on the net and congesting the network.


here here!  now, to put some teeth into the process so it really works,
and some @home or other ISP is not "reluctant" to turn off access until
the offender is fixed.

Thanks,

Ron DuFresne
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Cutting the space budget really restores my faith in humanity.  It
eliminates dreams, goals, and ideals and lets us get straight to the
business of hate, debauchery, and self-annihilation." -- Johnny Hart
        ***testing, only testing, and damn good at it too!***

OK, so you're a Ph.D.  Just don't touch anything.


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