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From: idlabs-advisories at (
Subject: iDEFENSE Security Advisory 10.05.04a: ColdFusion MX 6.1 on IIS File
 Contents Disclosure

ColdFusion MX 6.1 on IIS File Contents Disclosure

iDEFENSE Security Advisory 10.05.04a:
October 5, 2004


ColdFusion is a programming language based on standard HTML that is used
to write dynamic webpages. When a page in a ColdFusion application is
requested by a browser, it is automatically pre-processed by the
ColdFusion Application Server. More information is available at:


Remote exploitation of and input validation error in ColdFusion MX 6.1
on IIS could allow the disclosure of file contents.

By supplying a filename of a file not 'associated' with the Coldfusion
plugin and appending ;.cfm or any other extension that is associated
with ColdFusion, it may be possible to view to contents of the files
that otherwise would be protected by IIS's access restrictions.


This vulnerability may expose sensitive files stored under the webroot,
bypassing access restrictions set in the IIS management system. In order
for the file to be read, it must be accessible to the user Coldfusion
is executing as. This vulnerability still requires knowledge of the
existence of a file of interest. It does not expose the directory


iDEFENSE has confirmed ColdFusion MX 6.1 on IIS is vulnerable.


Change the mapping rules for ColdFusion handled files to refer to
specific files instead of the default *.cfm, *.jsp, etc. It is also
possible to mitigate against exploitation by not storing sensitive
information within the webroot of any server. Storing the information
outside of the webroot may require changes to applications.


MPSB04-09 - Cumulative Security Patch available for ColdFusion MX:


The Common Vulnerabilities and Exposures (CVE) project has assigned the
names CAN-2004-0928 to these issues. This is a candidate for inclusion
in the CVE list (, which standardizes names for
security problems.


07/08/2004   Initial vendor notification
07/08/2004   iDEFENSE clients notified
07/09/2004   Initial vendor response
10/05/2004   Public disclosure


The discoverer of this vulnerability wishes to remain anonymous.

Get paid for vulnerability research


Copyright (c) 2004 iDEFENSE, Inc.

Permission is granted for the redistribution of this alert
electronically. It may not be edited in any way without the express
written consent of iDEFENSE. If you wish to reprint the whole or any
part of this alert in any other medium other than electronically, please
email for permission.

Disclaimer: The information in the advisory is believed to be accurate
at the time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS condition.
There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct, indirect,
or consequential loss or damage arising from use of, or reliance on,
this information.

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