Web Application Security
RE: Directory Scanner Feb 13 2012 02:45PM
Calderon, Juan Carlos \(GE, Corporate, consultant\) (juan calderon ge com)
I understand authentication to these documents is not an issue what is
an issue is directory listing. IIS prevents this by default so I assume
you are using Apache, Tomcat or another server. So the best way to
prevent this issue is to modify your .htaccess file to avoid listing
files:

Here is an example of how to use it
http://www.javascriptkit.com/howto/htaccess11.shtml

Regards,
Juan C Calderon

-----Original Message-----
From: listbounce (at) securityfocus (dot) com [email concealed] [mailto:listbounce (at) securityfocus (dot) com [email concealed]]
On Behalf Of Alexander Pick
Sent: Wednesday, February 08, 2012 3:11 AM
To: Thugzclub Thugzclub
Cc: security-basics (at) securityfocus (dot) com [email concealed]; webappsec (at) securityfocus (dot) com [email concealed]
Subject: Re: Directory Scanner

Another idea is to proxy your download URLs through a script and hide
the real files outside the web root.

If you do it in PHP it's pretty simple (header + read file + bit
security). Just make sure to make the script secure in terms of
directory transversal etc., many people hide their downloads for
security and create even bigger holes with bad scripts.
You can also add all sort of attack detection to it, like recording the
hit count of an IP to it and auto locking the downloads after a certain
amount.

Hope this helps.

greets,
Alex

> A question:
>
> Given a website URL like the below :
>
> http://www.companywebsite.com/resources/resources/whitepapers/document
> _1_wp.pdf
> http://www.companywebsite.com/resources/resources/whitepapers/document
> _arbinatryname__wp.pdf
>
> How can I protect somebody from enumerating the list of file on this
> "whitepapers" directory ? What tool can I use to make sure that I am
> adequately protected against this ?
> Cheers
>
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