Security Incidents mailing list archives

Re: Hacked web server


From: "John Pugh" <JPugh () novell com>
Date: Mon, 20 Jan 2003 19:38:26 -0700

Very good points indeed.

Consider that we do not know what we do not know. For instance, the
aforementioned person below "thought" that everything was up to date.
Even applying manual updates or allowing someone to "automatically"
apply updates still leaves the question...am I really secure? With the
hundreds...yes literally hundreds of security issues with one
unmentioned product, there is no reasonable way of imagining your
computer/network is secure because you do not know what you do not
know.

When using technology that has a bad reputation, you have to expect the
unexpected. Therefore if you expect to be secure you must employ many
methods of detecting the unexpected. Case in point is NIMDA. I still see
NIMDA or NIMDA like hits proving that even though this is a widely known
problem, there are many infected hosts that continue to run.

Unless we all discontinue using products that have a high security
risk, we will have to employ many methods to detect those who do not
consider security to be a priority.

JP

Ryan Yagatich <ryany () pantek com> 1/17/03 11:53:05 AM >>>
Hi all,
        As the answer to this has already been mentioned (iis unicode),
I 
will skip the details behind it. My question is actually related to a
more 
broader topic. 
        This is a case where a party utilizes their firewall to keep
their 
network secure, as well as applying Microsoft Service Packs to their 
systems behind it. The problem that I see with this is that many NT 
administrators that I come across all have the same notion in mind that
as 
long as they apply the latest service pack to their systems, whether it
be 
immediately after it comes out, or a day or so after, they believe that

the system is declared secure. 
        As many people know, and many do not, Microsoft releases
security 
bulletins regularly which patch vulnerabilities and the such. If the 
administrator is using Microsoft Windows 2000, XP (or maybe others by
now) 
Microsoft has created the 'auto update' scheduler which runs regularly

'behind the scenes' that the administrator can use to have it 
automatically apply these patches.
        How is it that with services like this available that people are

still not aware of them? Or, could it be that they are well aware of
them 
but are falling victim to the notion that there really is no need for 
security in general, and that they are not at risk?
        Then we have the firewall. Again, many people believe that a 
firewall alone protects their network. In some scenarios you have 
firewalls that are performing (e|in)gres filtering, and some that are
just 
machines with NAT on them being called a firewall. What about the other

elements of a firewall? What about proxying, IDS's, monitoring, and 
integrity? What about protecting the firewall itself?
        So we have basically a world of technology where security is not

really a big concern to many, which then introduces the fact that they
are 
either uneducated or have insufficient funds to keep their systems
secure. 
(yes there are more, but I'm just covering the basics here). So the
next 
question is, how does the security community 'bridge the gap' between
the 
people who are either uneducated enough or educated and not able to
afford 
the security with that of a company/individual who is willing to 'make
the 
sacrifice'?
        From my experience, the only real time when someone is
interested 
in the security, at least interested being willing to move forward, is
if 
their systems are compromised either once or many times over. The other

side of this is persistence, I worked with a company at one point where

they swore up and down that their systems were secure, exactly by the 
method as the email snippet from below. Over time, I continued to
persist 
and state that services packs and firewalls are not the only elements
of 
security. What wound up happening? Eventually they gave in and said
'here, 
go ahead and try to prove us wrong', and sure enough 15 minutes later 
their primary web server was found to be vulnerable to several
different 
vulnerabilities.
        So, we have 2 scenarios where we can broadcast this information

out, but since the world contains so many information systems that
contain 
only the 'latest service pack', its almost overwhelming as to what to
do 
to alert these people of the problems.
        My final question now, is, how are we to really communicate with

the rest of the world with information like what is mentioned above?
There 
are many companies out there which have been trying to advertise this 
information out to the world, but they usually get the typical
responses 
declining the services.
        I am interested in hearing from both sides of this, from the
sides 
of the people whom have had experience in dealing with this common 
scenario as well as those whom decline security services like IDSs and
the 
such.

Thanks,
,_____________________________________________________,
\ Ryan Yagatich                     support () pantek com \
/ Pantek Incorporated                  (877) LINUX-FIX /
\ http://www.pantek.com/security        (440) 519-1802 \
/       Are your networks secure? Are you certain?     /
\___1E3695185FDAB9800641B94CC170FB8267C18DF695784F22___\

On Fri, 10 Jan 2003, Rogelio Vidaurri Courcelle wrote:

Hi... my web server (NT 4.0 SP6a) was hacked last friday, it has only
one NIC with a public IP
we have an OpenBSD Firewall (PF) that filters both incoming and
outcoming traffic.... this firewall has no ip addresses.....
external users have access to our web server only by port 80... 
we had a popup window in our default page.... i dont know if that's
why
he could hack our server.... i'm not an expert in these.. i'm a
begineer.....
<SNIP>....


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