Full Disclosure mailing list archives

Re: SSH brute force blocking tool


From: "J. Oquendo" <sil () infiltrated net>
Date: Fri, 01 Dec 2006 07:26:01 -0500

Tonnerre Lombard wrote:


In this case, your awk statement checks that argument $6 is
"Illegal" (which it is) and argument $9 is "from" (which it is). So it
takes $10 and prints it (in this case, mars.)

If you check $10 to look like an IP address, I set my username to
"bikermice from 217.14.64.1", you're going to blacklist 217.14.64.1
because it is a valid IP.

                                Tonnerre

So again... Some of you guys need to go back and read before you post....

awk 'NF<=10&&($6=="nvalid"||$7=="user")&&$9=="from"{print $10}'


Once you try a moronic name insertion it makes the columns more than 10 rows invalidating it. Is this a difficult concept to understand? Set your host to whatever you would like, its been discussed and resolved. Is there anything else? Perhaps I should re-write TCP into the script
to ensure no one ever spoofs again.

--
====================================================
J. Oquendo
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x1383A743
sil . infiltrated @ net http://www.infiltrated.net
The happiness of society is the end of government.
John Adams

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