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Re[4]: 11 years of inetd default insecurity?

From: 3APA3A (3APA3Asecurity.nnov.ru)
Date: Mon Sep 08 2003 - 14:56:27 CDT


Hello Paul,

Monday, September 8, 2003, 11:11:12 PM, you wrote:

>>
>> -s limits number of processes invoked from same IP. You can additionally
>> use -c to prevent distributed attack. It doesn't allow to DoS box and
>> doesn't disable service for 10 minutes.

PS> Note that my (DEC/Compaq/HP Tru64) inetd does not have -c or -s options.
PS> The only safe way is to use a sensible -R and tcp_wrappers. Or upgrade to
PS> Linux and xinetd...

It proofs code needs to be rewritten. I don't understand why limitation
is on per minute, not per second base. Oh no - I understand. This is
result of the code was written more than 10 years ago. But what I
completely misunderstand is how disabling service for 10 minutes
increases security. It's because I'm green, stupid and brain damaged.

IMHO reasonable behavior is limiting a number of requests accepted per
second without disabling service. But this code became a kind of saint
cow. Only hope is young monsters like xinetd will rid this dinosaur off
as a result of evolution.

--
/3APA3A