RE: Vulnerability scanners

From: Rosado, Rafael (Rafael) (rarosadoat_private)
Date: Thu Mar 27 2003 - 13:46:28 PST

  • Next message: Jeff Williams @ Aspect: "Re: Vulnerability scanners"

    Dan,
    
    I will not provide you with an endorsement of any product (commercial or
    freeware), but I can tell you that there are less expensive commercial
    solutions than Qualysis (not to say that the Qualysis product is not worth
    that cost, although it does seem steep... well, then you have Foundscan
    which is much more expensive).  You probably need to bring several full
    evaluation copies in-house and run your own "head-to-head" comparisons.
    
    If you dont have the time or resources to perform such an in-house
    evaluation, you could take your chances in relying on 3rd Party
    comparisons/evaluations (such as the one done my Information Security
    Magazine - http://www.infosecuritymag.com/2003/mar/cover.shtml and
    http://www.infosecuritymag.com/2003/mar/comparisonchart.shtml or Network
    World Fusion at http://www.nwfusion.com/reviews/2002/vulnerability0204.jsp).
    
    You could always go with the limited budget solution - Nessus and "Almost
    Free" Tools (refer to Fred Langston's presentation -
    http://www.issa-ps.org/presentations/issaps-0303a.pdf).
    
    Each alternative has implementation, deployment and maintenance costs
    associated with it.  Regarding the accuracy of each and how often these are
    updated with the latest attack signatures is debatable, although Nessus has
    been highly rated by many for accuracy and updated attack signature
    availabilty (it is considered one of the most widely accepted and
    recommended security tools available, along with NMAP which Nessus has
    embedded into it).
    
    Most security professionals I have interacted with have mentioned that they
    use Nessus to complement the results from whatever commercial vulnerability
    scanners they are using.
    
    Good Luck with your evaluation/decision.
    
    Rafael Rosado, CISSP, CISA
    IT Security Manager
    Caribbean and Latin America Region (CALA) &
    Global Risk Assessment and Penetration Testing
    Lucent Technologies O  
    Corporate Security
    Business Assurance and Risk Mitigation Services (B.A.R.M.S.) 
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    rarosadoat_private (email) *
    
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    -----Original Message-----
    From: Rob Shein [mailto:shotenat_private]
    Sent: Thursday, March 27, 2003 3:34 PM
    To: 'Dan Lynch'; pen-testat_private
    Subject: RE: Vulnerability scanners
    
    
    I'd be astounded if it took that much money to administer Nessus.  I run
    nessus, and it's so little trouble that I don't think I've spent 60 minutes
    administering/installing/maintaining it all year so far.  Every time I run
    it, I do the check for updates (and heck, you can set that as a cron job if
    you really want), and aside from that I've had no trouble with it
    whatsoever.  I cannot believe that Qualys has vulnerability signatures
    faster than Nessus, at least by any reasonable amount of time...I've seen
    NASL plugins out within hours of the vulnerability being made public.
    Easier updates than Nessus?  Um..."nessus-update-plugins"...wait about 20-90
    seconds...done!  What's so hard about that?  And I can write my own NASL
    plugins for Nessus if I so desire (and I have), which I cannot do with
    Qualys.  
    
    Finally, a company I worked for tested Qualys once, and they failed to find
    some of the more important problems with the NT box we stood up outside of
    our firewall.  This was years ago, and I'm sure things have improved (or so
    I hope) but it was still a powerful thing to see first hand.  In the end, we
    went with Nessus, and never had a problem after that.
    
    > -----Original Message-----
    > From: Dan Lynch [mailto:dan.lynchat_private] 
    > Sent: Wednesday, March 26, 2003 6:47 PM
    > To: pen-testat_private
    > Subject: Vulnerability scanners
    > 
    > 
    > Greetings list,
    >  
    > Yesterday some reps from Qualys came with a sales 
    > presentation for their QualysGuard appliance. I'd like to 
    > solicit your comments and opinions on that product. In 
    > particular, do you think it's $45,000 per year better than 
    > Nessus? (That's about the cost we'd face based on our IP 
    > address range.) They claim it costs as much in administration 
    > to run Nessus. Does Qualys' claim to more vulnerability 
    > signatures and faster/easier updates hold water?
    >  
    > Any input you can offer is greatly appreciated.
    >  
    >  
    >  
    > Dan Lynch
    > Information Technology Analyst
    > County of Placer
    > Auburn, CA
    >  
    > 530/889-4222
    >  
    > 
    > Bureaucracy: the art of making the possible impossible.
    > 
    > 
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