Macromedia ColdFusion MX Input Validation Flaw Lets Certain Remote Authenticated Users Access Arbitrary Data on the Server
SecurityTracker Alert ID: 1005908|
SecurityTracker URL: http://securitytracker.com/id/1005908
(Links to External Site)
Date: Jan 10 2003
Disclosure of system information, Disclosure of user information|
Fix Available: Yes Vendor Confirmed: Yes |
An input validation vulnerability was reported in Macromedia's ColdFusion MX Enterprise Edition server. A remote authenticated user could create a template that could access arbitrary data on the server.|
The vendor reports that the sandbox security features can be circumvented by a template that contains specially crafted arguments for the <cfinclude> and <cfmodule> tags. The software reportedly processes relative file path names for these tags but does not check the Sandbox Security Files/Dirs permissions, allowing arbitrary files on the system to be included by the template. Users that can create templates can exploit this flaw.
Only the MX version is affected, according to the vendor.
Macromedia credits Jochem van Dieten with reporting this flaw.
A user with the ability to create templates on the server could gain access to arbitrary files on the system.|
The vendor has released a patch and indicates you should apply the patch if you use ColdFusion MX Enterprise Edition Sandbox Security and you permit ColdFusion templates from untrusted sources to be executed.|
Patch installation instructions are available at:
The flaw will reportedly be fixed in the next release of the ColdFusion MX updater. Users should remove the 48718.jar file when this updater is installed.
Vendor URL: www.macromedia.com/v1/handlers/index.cfm?ID=23638 (Links to External Site)
Access control error, Input validation error|
|Underlying OS: Linux (Any), UNIX (HP/UX), UNIX (Solaris - SunOS), Windows (NT), Windows (2000), Windows (XP)|
Source Message Contents
Subject: New Macromedia Security Zone Bulletins Posted|
Several security issues that may affect Macromedia JRun
and ColdFusion customers have come to our attention
To learn about these new issues and what actions you can
take to address them, please visit the Security Zone at
the Macromedia website:
MSPB03-01 - Patch available for ColdFusion MX Enterprise
Edition sandbox security issue that allows templates to
include arbitrary files.
Originally Posted: January 9, 2003
The <cfinclude> tag and the <cfmodule> tag will accept
filenames with relative paths as arguments. CFMX does
not check the Sandbox Security Files/Dirs permissions
before including files with these tags. This could
allow a template to access unauthorized data using
This does not affect any prior versions of ColdFusion.
WHAT CUSTOMERS SHOULD DO:
We strongly encourage customers to download and install
this patch immediately.
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