Hi,
Dropping connections at your firewall is good way to stop the attack but
isn't it like locking yourself inside a stone castle to keep safe remember
you cant get out either. And if someone wants to do this every other day to
your network I figure a lot of your internal users would be less than happy
locked inside you virtual stone castle.
Regards
Jag
-----Original Message-----
From: listbounce@securityfocus.com [mailto:listbounce@securityfocus.com] On
Behalf Of Gethinj
Sent: Thursday, September 28, 2006 9:57 PM
To: gmx; security-basics@securityfocus.com
Cc: Frynge Customer Support
Subject: Re: Re[2]: No NetBios share + No Open Port = Safe Win98?
Hi All,
OK, so a firewall won't stop a DDOS attack from flooding your internet pipe,
but it will stop the attack from actually getting to you internal network.
The firewall will also stop your internal machines broadcasting on port 139
adn 445, and if your firewall drops all external connections (including
ICMP) and you're not broadcasting everything to the internet there is less
(not much, but deffinately less) chance of your actually being attacked in
the first please - if you can see it, you can attack it.
To be honest lots of firewalls are able to withstand a DDOS attack, they
drop the connections, in my book that's withstanding an attack. If the
internet pipe fills up, it doesn't stop the firewall doing it's job :-) just
stops internet access, when the attack has finished your network still works
:-)
Best Regards
Gethin
-----Original message-----
From: gmx pal_adam@gmx.net
Date: Wed, 27 Sep 2006 21:00:39 +0100
To: security-basics@securityfocus.com
Subject: Re[2]: No NetBios share + No Open Port = Safe Win98?
Hello Frynge,
Monday, September 25, 2006, 6:11:13 PM, you wrote:
<==============Original message text===============
FCS> I dont know if anyone has replied to this yet, but here is some
advice.
FCS> The port 139 exploit was usually used for file and printer sharing
hacks.
FCS> Having that port open will allow someone to see your computer online
with
FCS> programs that will check for file and printer sharing vulnerabilities
and
FCS> also, possibly use your computer for DDOS attacks or flood your
computer via
FCS> that port.
FCS> I would make sure file and printer sharing is not on (you may not
have set
FCS> it on, but sometimes its on by default and with no password)
FCS> YOU SAID "I used winipcfg.exe to obtain my IP address (192.168.1.101)
"
FCS> It tells me you are on an internal network and that is not your real
ip
FCS> address but an internal address. You will have another ip that is
your real
FCS> ip address, you can find this by googling it and looking for online
ip
FCS> finders.
FCS> For DDOS and flood attacks make sure you have a nice firewall set up
and you
FCS> should be fine.
Erm what ? As far as i know, no private firewall is able to stand
against a strong DDOS, and corporate firewalls are only able to
mitigate it, not more.
Having a nice firewall set up will not save no one from a serious
ddos, maybe just from some attepts of unexperienced scriptkiddies...
FCS> Win98 closed that port in later additions and service packs, so you
may want
FCS> to update your windows at windows update if you can.
FCS> Kelly Sigethy
FCS> Frynge.com
FCS> ----- Original Message -----
FCS> From: <gohyongkwang@hotmail.com>
FCS> To: <security-basics@securityfocus.com>
FCS> Sent: Friday, September 22, 2006 9:01 PM
FCS> Subject: No NetBios share + No Open Port = Safe Win98?
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