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Keene Digital Media Server Directory Traversal
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SUMMARY
<http://www.keenesoftware.com> Keene Digital Media Server is "an easy and
affordable way to share all things digital with friends, family, and
customers over your broadband connection. DMS turns your computer into a
highly secure Web server that automatically converts your files and
folders into Web pages, thumbnails, and media shows with no Web
programming required. Integrated user and file access security management
provide the ultimate control over your content".
A directory traversal is possible on the DMS due to a problem in the way
the server handles encoded URLs.
DETAILS
Vulnerable Systems:
* Keene DMS version 1.0.2
Although the developers recently fixed a directory traversal vulnerability
in this product it is still possible to perform directory traversal and
view arbitrary files on the system running the server. The following
example illustrates this:
http://localhost/%2E%2E%5Csystem.log
It is clearly evident that only ../ and %2E%2E/ were filtered out. If you
hex encode the backslash or use a forward slash you can then traverse out
of the web directory. For example I am able to grab the server log file
with the above request.
ADDITIONAL INFORMATION
The information has been provided by <mailto:security@gulftech.org>
GulfTech Security.
The original article can be found at:
<http://www.gulftech.org/?node=research&article_id=00046-08252004>
http://www.gulftech.org/?node=research&article_id=00046-08252004
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