Snort mailing list archives

Re: RE: How to Triggering Windows Exploits?


From: ids () san rr com
Date: Tue, 25 May 2004 15:30:28 -0700

Hi Joshua,

Your answer is a little bit different from what I was asking. Let me elaborate a little. Are the rules written in a way 
that requires a targeted computer have to respond to an attack or something of that nature for Snort to issue an alert. 
I have yet to see my Snort sensor alert me to any MS exploits (various network worms such as Sasser, blaster...etc) . I 
assumed the reason for this was because there are no Windows PC connected to the network Snort is sensing on. Another 
test I ran to see if Snort would issue an alert was the Cisco exploits. I do not have any Cisco devices on my network 
but I attempted to trigger an alert my hitting an IP on the protected network with the PERL script. No alerts. Do I 
have to have the appropriate Cisco deivce to trigger the alert? Just a side note I'm using the most current rules for 
Snort (inluding the rules to detect the Cisco exploits) for testing and information gathering.


Any help on this I would greatly appreciate!


Alan

----- Original Message -----
From: Joshua Berry <jberry () PENSON COM>
Date: Tuesday, May 25, 2004 1:39 pm
Subject: RE: [Snort-users] How to Triggering Windows Exploits?

Snort will not verify OS or Services running on the target machine
unless you patch it with something like the Attack Verification patch
that uses Nessus to verify actual vulnerabilities of the target.

-----Original Message-----
From: snort-users-admin () lists sourceforge net
[snort-users-admin () lists sourceforge net] On Behalf Of
ids () san rr com
Sent: Tuesday, May 25, 2004 2:46 PM
To: snort-users () lists sourceforge net
Subject: [Snort-users] How to Triggering Windows Exploits?

Hi everyone-


I have a simple question. Is it true that some Snort alerts are only
triggered if the target computer is vulnerable to that attack? To 
be a
little more specific... if an attacks targets an exploit in 
Windows 2000
and I only have Linux running in my network will Snort alert me to 
thoseWindows attacks? The reason I ask is because I have a Snort 
sensordetecting detecting attacks against a Linux box running 
Apache. I
noticed that the only attacks I detect are SQL, HTTP and Linux 
related.About a week ago for a brief time an associate put a 
Windows 2k box off
of the hub and I started to get hit with these Alerts I had never seen
before (MS Exploits). I want to capture more data on the amount of
exploits attacks on Windows and was wondering for me to gather 
that data
would I have to have a Windows computer on the network Snort is 
sensing?Thanks in advance!


Alan     



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