Re: Vulnerability scanners

From: Chris Sharp (illectro2001@yahoo.com)
Date: Thu Mar 27 2003 - 17:05:55 EST


> Does Qualys' claim to more
> vulnerability signatures and faster/easier updates
hold
> water?

Well the front page of qualys.com claims that they
scan for 2531 vulnerabilities, that's twice what
Nessus (1378) or ISS (1218) claim.

As for updates, it's all on their servers and
hardware, set it up once and forget abotu software
updates. Fire and forget. Not sure about the rate of
false positives, but my impression is that they're
cautious, only reporting False positives for dangerous
bugs.

They don't do active tests, so they don't exploit
known bugs and crash servers during testing. A lot of
Nessus modules need to be launched manually and result
in the scanned machine needing a reboot - somewhat
inconvenient but it removes any doubt as to how
vulnerable you are.

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