RE: Crashing services with NMAP and/or SuperScan ?

From: Evans, Arian (Arian.Evans_at_fishnetsecurity.com)
Date: 11/26/04

  • Next message: Ben Nagy: "RE: Retina scans caused broadcast storms" 
    Date: Fri, 26 Nov 2004 09:46:24 -0600
To: <Pen-test@security-focus.com>

     
    > >- 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

    KC Office: 816.421.6611
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    Toll Free: 888.732.9406
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    http://www.fishnetsecurity.com

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  • Next message: Ben Nagy: "RE: Retina scans caused broadcast storms"

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