Full Disclosure mailing list archives

RE: SQL Slammer - lessons learned


From: "Steve Wray" <steve.wray () paradise net nz>
Date: Mon, 10 Feb 2003 12:21:31 +1300

But if things carry on the way they are, ISPs are going
to be required, by law, to restrict access to the internet.

Once upon a time, the internet community was a closed circle,
if someone on the internet released a worm or something
that closed the net down, it only affected that small
circle of geeks. The rest of the world might have
been excused for asking 'so what?'

Not so anymore; ATMs, emergency services etc are all
impacted by crud on the internet.

That being the case, the rest of the world will very soon
be asking why the heck arn't internet service providers
policing their customers better?

Pressure groups will form, politicians will be bribed
oops sorry 'have campaign contributions made' be endlessly
harrassed by highly paid lobbyists (for example).

Soon, unless the internet community can
demonstrate an adequate level of self discipline,
it will no longer be as open as it is today.

Already, there are moves afoot to create 'internet content providers'
as opposed to 'internet service providers'. Think about it; Joe Public,
non-Geek wants music, movies email and porno maybe instant pestering
(oops *messaging*). Content providers can dish all that out at a
fraction
of the cost of a real ISP (lower overheads, less to manage, can
franchise
to RIAA approved outlets etc). 

Joe Geek, on the other hand, loses bigtime.

My guess? Unless the internet community shapes up or
oh maybe unless ipv6 becomes the standard for most of
the internet (*snicker* yeah RIGHT) within, say, 5 years
there will be NO open pipe ISP left anywhere in the, uh,
civilised world. You will have to go to somewhere more
interesting like Tuvalu
;)


-----Original Message-----
From: full-disclosure-admin () lists netsys com 
[mailto:full-disclosure-admin () lists netsys com] On Behalf Of yossarian
Sent: Monday, 10 February 2003 11:25 a.m.
To: full-disclosure () lists netsys com
Subject: Re: [Full-disclosure] SQL Slammer - lessons learned


PS wrote:
All this is well and good, but I have a really hard time 
understanding
why we need to route insecure networking protocols such as NetBIOS,
CIFS, NFS or NIS across the Internet.  Just closing those 
ports would do
a world of good for the Internet as a whole, and who in the 
world would
it hurt?

Well, it wouldn't hurt many, that is true. But who is to 
decide which ports
can be closed? I'd block this kind of traffic within the 
network, in policy
and on the internal firewalling, and the external 
connection(s). Long time
ago the net was invented to connect, with it came these 
extremely insecure
protocols. But I could argue the same for many other 
protocols. So could my
ISP.

If you really seriously need to mount drives from a remote 
network, you
can do it through a secure tunnel (SSH, VPN), which would 
not be blocked
by blocking those ports.  If the Internet is going to survive in any
viable fashion, we have to come to our senses when it comes 
to allowable
services.  The uncontrolled access to networking services on home
computers and poorly secured commercial networks is the root cause
behind a lot of the problems that exist on the Internet 
today - worms,
virus, trojans, etc.  Ports 139 and 445, *at a minimum*, should be
closed (to the outside) on every network in the world.

Are you really willing to demand your "freedom" in the face of the
overwhelming odds that leaving those ports open will do 
more harm than
good?

Yes, I am. Leaving these ports open does not harm me, if it 
harms anyone -
not my problem. The ports you are referring to are not vital to the
internet, it can just cause extra traffic. With the e-bubble, 
we got loads
and loads of bandwidth, not used normally. My freedom to use 
non-standard
systems, and in the foreseeable future, non-TCPA systems, is 
essential to
me, and to many others.

All this talk of regulating the internet is very scaring, 
since it hurts the
choice in technology we have now. Putting the burden on ISP's 
for all the
woes we see, is counterproductive. What will we do once we've 
put them all
out of business, policing the net without financial compensation?

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