Security Basics mailing list archives

Re: Is anyone else seeing SMURF ?


From: Tomas Wolf <tomas () skip cz>
Date: Wed, 27 Aug 2003 15:04:24 -0400

Well any router and firewall should have the ability to recongnize that if on interface1 comes something that has source as if it was from the network of interface2, it won't let it through.. Simple access list should do this, and also not allowing anything with your LAN broadcast from the WAN interface.
And what protocol does it use?
Tomas

SVater () oh hra com wrote:

Over the last month, I increasing numbers of Smurf trying to come in on my
home firewall, all on Port 0.  From what I have seen & read, this is a
pretty old vulnerability that has been patched. Is this a new hole? I went
from seeing one in a month to 40 (different IPs) just this weekend over a
72 hr period. All coming from my local area (guessing just on the info that
I pull from GeoBytes.com).

Anyone else seeing this ?

Sean


"Eagles may soar but weasels don't get sucked into jet engines." Steven
Wright




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