Re: nessus generated different results?!

[Gareth Davies <gareth.davies () mynetsec com>]

Doug Fox wrote:
> Lately, I ran NESSUS 2.6 against a list of seven (7) Check Point VPN-1 
> on Windows hosts with different results:
>
> The 1st run, the report showed 6 hosts instead of all 7, missing one 
> host. ( I had triple checked the IP addresses were accurate.)
> The 2nd run, right after the first run, against the same list of 
> hosts, the report showed three (3) hosts *including* the one missing 
> in the 1st run, five their disappeared, or not responded.
> The 3rd run, on the second day, the report showed 2 hosts.
>
> Appreciate any thought on these scenarios are appreciated.
>
> Thanks,
>
> DF
Quit likely your IP was blacklisted by the devices after the first run, 
this often happens between first and second runs with something noisy 
like nmap or Nessus.

Perhaps the one that didnt show up had already blocked you for some reason.

You can

a) Either take this into account and work with it (or around it) and 
note it.

b) Ask for the sys admin to whitelist your IP address so you can gain 
more consistent results

Cheers

--
Gareth Davies - BS7799 LA, OPST

Manager - Security Practice

Network Security Solutions MSC Sdn. Bhd.
Suite E-07-21, Block E, Plaza Mont' Kiara, No. 2 Jalan Kiara,
Mont’ Kiara, 50480
Kuala Lumpur, Malaysia 
Phone: +603-6203 5303 or +603-6203 5920

www.mynetsec.com


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