Nmap Development mailing list archives

Re: http-iis-short-name-brute.nse BUG?


From: "Dev (nmap)" <dev.kyckel () gmail com>
Date: Wed, 26 Sep 2012 09:38:25 +0200

On 2012-09-26 02:33, Patrik Karlsson wrote:


On Wed, Sep 26, 2012 at 12:38 AM, Dev (nmap) <dev.kyckel () gmail com <mailto:dev.kyckel () gmail com>> wrote:

    Hi Richard,

    Thanks for testing the script.

    In regards to your first question, the script only finds the short
    name of the files, this means the first 6 letters in the
    file/folder name and the last 3 letters of the extension. This
    means that in the case of, say, 'test~1.asp', the full file name
    is known, since only 4 letters have been found, and it seems that
    the extension also has been found since '.asp' is a valid
    extension.  But since only 3 letters of the extension can be
    found, the real extension might be (and in this case, it is) '.aspx'.

    If you'd like to know more about the inter-workings, the original
    POC author has written a more in depth description of the method:
    http://code.google.com/p/iis-shortname-scanner-poc/ in the
    research file.

    The script requires that the service is identified as a 'http'
    service, so you could try to add the '-sV' option to your command.

    Hope this helps.

    Regards,


    Jesper


You could also force script execution by prefixing the script with a plus (+) which would execute it against any open port. Comparing to -sV it's a little faster as Nmap doesn't do any version or application detection.

//Patrik

--
Patrik Karlsson
http://www.cqure.net
http://twitter.com/nevdull77


Thanks for the tip! I didn't know that.
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