Penetration Testing mailing list archives

RE: Vulnerability scanners


From: "Rapaille Max" <Max.Rapaille () nbb be>
Date: Fri, 28 Mar 2003 08:54:48 +0100

Totally agree, but Qualys allows you to download the result from their Datacenter (in Html  or XML format) and so you 
delete the report from their servers..  At this time you just loose the comparison features, and have to do it yourself.
But anyway, it has to stay on their network a certain amont of time...  I know they had a project to make an internal 
report server, avoiding to send data to their servers..  They didn't achived the project, but I think the API's are 
available...

Cheers 

Max

-----Original Message-----
From: Michael Welch [mailto:mdwelch () sendsecure com] 
Sent: vendredi 28 mars 2003 00:46
To: Paris Stone; Alex Russell; Jeff Williams @ Aspect; Dan Lynch; pen-test () securityfocus com
Subject: RE: Vulnerability scanners


About 4 months ago I performed a comparison of Qualys, Foundscan, and Vigilante.  They all have there good and bad 
point's.  The nice things about Qualys was that all you had to do is plug the appliance into your network and you were 
ready to go.  My concern was that although your scan data was transferred via https it was stored on another companies 
network.  Being a security professional I have a hard time allowing my internal network scanning results sitting on 
another's network.

-----Original Message-----
From: Paris Stone [mailto:paris () ciscoinstructor net]
Sent: Thursday, March 27, 2003 5:25 PM
To: Alex Russell; Jeff Williams @ Aspect; Dan Lynch; pen-test () securityfocus com
Subject: Re: Vulnerability scanners


The Qualys box is an appliance that is configured once.  It connects out your firewall using SSL (TCP 443) to hit 
Qualys's web/scanner server.  It then retrieves the information(database of exloits, etc...) and runs them against your 
internal network.  It then uploads the info to their database servers using SSL. Then all of your information is 
available via the web with nice reporting, pretty graphics, etc...  It breaks it down into reports for techies and 
reports for non-techies
(CxO's) daily, weekly, monthly.  The economies thing is simply that you have a yearly subscription based upon number of 
hosts scanned.  A fixed cost, 24x7x365 tool that doesn't have HR or benefit issues and doesn't get kids sick and have 
to take days off.  It IS easy to setup and administration is easy for those who can RTFM.

Alex Russell (alex () netWindows org) wrote:

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On Thursday 27 March 2003 12:58 pm, Jeff Williams @ Aspect wrote:
Let's assume that you're talking about 256 IPs (based on Qualys' 
published pricing), and you want to scan weekly.  That's at least a 
day a week of effort for someone (probably more to generate a very 
nice report and summaries).  The cost of a full-time sysadmin 
(including salary, benefits, office, etc...) probably costs well 
north of $100K.  You'd have to include some equipment costs in there.  
So I doubt you could do it much cheaper. I think vulnerability 
scanning is a reasonable thing to outsource for companies that are 
not in the security or networking field already.

This sounds like a false economy to me.

First: how does the Qualis box remove the need for a sysadmin? It's 
just
one
more appliance to manage, and something your existing admin should be 
able to do anyway. And if you already didn't have an admin, you'd need 
one now that you're thinking in terms of security. No extra cost here 
(aside from incremental admin time).

Secondly: if you've got a trained monkey doing your report generation, 
then you're right about the costs. If, however, you have a developer 
automate most of that, then you can add more nodes to be scanned at 
much lower incremental cost (change a config file). Additionally, using 
public signature sets may have downsides, but using Open Source tools 
is good both for your own internal flexiblity and for the world at 
large (checks aren't quite right? set that developer to work writing 
and contributing back better ones!).

All in all, your initial costs to do it in house with smart people and 
Open Source tools might be higher, but your incremental costs do not 
grow at nearly the same rate. OTOH, if you don't have any admins or 
developers, then Qualys might look like a very nice option.

HTH

- --
Alex Russell
alex () netWindows org
alex () SecurePipe com
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-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Paris Stone
CISSP, CCNP, CNE/CNI, MCSE/MCT,
Master CIW Administrator, CIW Security Analyst, NSA
A+, Network+, iNet+
http://www.ciscoinstructor.net/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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