asb99-03.miis_DATA
7bfb40d64d5880629df367901eeb17f4b2ebb55e99bde64f01246b0290374db4
Allaire Security Bulletin (ASB99-03)
Microsoft Internet Information Server Exposure of Source Code with
"::$DATA"
Originally Posted: February 4, 1999
Summary
As indicated on the Microsoft Web site, Microsoft IIS exposes the
ability to use an NTFS attribute to read the source code of ASP, CFML,
Perl and other files that are on a server. This is not a problem with
ColdFusion Server itself, but it is an issue that can affect
ColdFusion users. Allaire recommends that customers follow the
instructions posted on the Microsoft Web site to address this issue.
Issue
This issue is clearly explained in the Microsoft Knowledge Base: "The
native Windows NT file system, NTFS, supports multiple data streams
within a file. The main data stream, that which stores the main
content, is called DATA. Accessing this NTFS attribute directly from a
browser may display the script code for the file." For example,
accessing http://myserver/index.cfm::$DATA may yield the contents of
the file itself, not the processed results of the file.
Affected Software Versions
* Any ColdFusion Server running on Microsoft IIS (1.0, 2.0, 3.0 or
4.0)
What Allaire is Doing
This is not an Allaire product. We are recommending that customers
reference the information at Microsoft's site to address this issue.
What Customers Should Do
There are several patches and workarounds available to correct this
problem. These are detailed in the following Microsoft Knowledge base
article (Q188806):
[4]http://support.microsoft.com/support/kb/articles/q188/8/06.asp
Note: The Knowledge Base article provides instructions for changing
application mappings as one of the solutions. The same instructions
apply to ColdFusion with the following information:
Executable Path %System32%\iscf.dll
.cfm::$DATA
.dbm::$DATA
Revisions
February 4, 1999 -- Bulletin first released.
Reporting Security Issues
Allaire is committed to addressing security issues and providing
customers with the information on how they can protect themselves. If
you identify what you believe may be a security issue with an Allaire
product, please send an email to secure@allaire.com. We will work to
appropriately address and communicate the issue.
Receiving Security Bulletins
When Allaire becomes aware of a security issue that we believe
significantly affects our products or customers, we will notify
customers when appropriate. Typically this notification will be in the
form of a security bulletin explaining the issue and the response.
Allaire customers who would like to receive notification of new
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notification service.
For additional information on security issues at Allaire, please
visit:
[5]http://www.allaire.com/security
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References
1. LYNXIMGMAP:http://www1.allaire.com/handlers/index.cfm?ID=8729&Method=Full#allaireHome
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3. javascript:history.back()
4. http://support.microsoft.com/support/kb/articles/q188/8/06.asp
5. http://www.allaire.com/security
6. mailto:webmaster@allaire.com
7. mailto:info@allaire.com
8. http://www.allaire.com/privacy/