RE: Crashing services with NMAP and/or SuperScan ?

From: Evans, Arian (Arian.Evans@fishnetsecurity.com)
Date: Fri Nov 26 2004 - 10:46:24 EST


 
> >- one Oracle TNS Listener - however the admin said
> "everything continued to
> >function"
> >- 2 or 3 Storageworks EVA Secure Path services.
>
> I would think that your problem is with the -O flag. A lot of
> people have
> reported similar behaviour with the O/S detection.
>
> >Fortunately the admins were not upset. They looked through
> the services on
> >the servers, looked which ones had gone "stopped" and set
> them back to
> >"started".

In general point to watch on Oracle--

Oracle listeners are extremely fragile to invasive interrogation.
I have brought down Oracle listners repeatedly with a variety
of port scanners that do OS detection. Wish I could remember
the exact Oracle versions, at least as recent as 8 and 9i,
and primarily running on *nix. (Linux, AIX, and OpenVMS; of
course, with VMS's own native buggy and third-party IP stacks,
just about any port/vuln scanning activities is liable to bring
those things down.)

Interestingly I have not seen this same behavior on Oracle on
Windows. Anyone else?

Arian Evans
Sr. Security Engineer
FishNet Security

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