RE: Online Scanning Services Vrs. Stand Alone Applications

From: Filipe Custodio (filipe.custodio@novabase.pt)
Date: Thu Feb 27 2003 - 05:41:28 EST


 
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> The second part of the question is, are their any technical
> advantages between the two setups? I understand this overlaps with
> the
> first question
> but I ask this after having searched for good writeups and
> came out with
> very little.

- From what I have seen, the main difference is that stand alone
applications tend to me a lot more thorough, deploying tests of an
aggressive nature an online scanner simply cannot afford.

On the other hand, online scanning is usually a lot easier to use,
being targetted at the end user. Stand alone vulnerability scanners
should be used by qualified auditors only. I have seen a couple of
crashes and system instability caused by vulnerability scanners like
Nessus or eEye Retina.

Still, the main advantage of stand alone vulnerability scanners is
that they can be deployed anywhere (DMZ, intranet, etc.), while
online scanning is limited to the Internet perimeter.

Just my ?0,02

- --
Filipe Custodio
CISSP, GSNA
Senior Security Consultant

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