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Portfolio Netpublish Server 'template' Directory Traversal
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SUMMARY
<http://www.extensis.com/en/products/asset_management/product_information.jsp?id=prod60022>
NetPublish Server from "Extensis is a database-driven file cataloging product,
which is accessible via a web interface".
The NetPublish Server web interface is vulnerable to a directory traversal
attack, which allows access to files that resiude outside the web root
directory.
DETAILS
Vulnerable Systems:
* Netpublish Server 7
Arbitrary files could be retrieved from the server by using a 'directory
traversal' attack within the URL, as shown below:
http://xxx.xxx.xxx.xxx/netpub/server.np?base&;
site=XXXintra&catalog=catalog&template=../../../../../../../../../boot.ini
As a result of supplying the above URL the contents of the file 'boot.ini'
are displayed in the web browser. Furthermore, by default the server runs
with the privilege level of the local SYSTEM account (on Windows) and
could therefore be used to retrieve the contents of any file on the
server. The risk is reduced if the product is run on Unix, as the
privilege level used is that of the 'nobody' account.
Vendor Status:
Extensis were contacted on October 11th 2005 and although they have not
produced a patch to prevent the directory traversal they have released a
KnowledgeBase article on their web site, which attempts to mitigate the
issue. For more information see:
<http://www.extensis.com/en/support/kb_article.jsp?articleNumber=3302201>
http://www.extensis.com/en/support/kb_article.jsp?articleNumber=3302201
ADDITIONAL INFORMATION
The information has been provided by <mailto:advisories@irmplc.com>
IRMPLC Advisories.
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