The following pre-advisory is also available in PDF format for download at:
http://www.cybsec.com/vuln/CYBSEC-Security_Advisory_Documentum_dmclTrace_Arbitrary_file_overwrite.pdf


Advisory Name: Arbitrary file overwrite in Documentum Administrator / Documentum Webtop
==============


Vulnerability Class: Arbitrary file overwrite
====================


Release Date: 2008-02-05
=============


Affected Applications:
======================
* Documentum Administrator version 5.3.0.313
* Documentum Webtop version version 5.3.0.317
* Other applications and versions may also be affected


Affected Platforms:
===================
* Windows 2003 Server - Standard Edition
* Apache Tomcat 5.0.28
* Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_05-b04)
* Other platforms may also be affected


Local / Remote: Remote
===============


Severity: High
=========


Author:  Pablo Gaston Milano
=======


Vendor Status: Confirmed. Updates Released.
==============


Reference to Vulnerability Disclosure Policy: http://www.cybsec.com/vulnerability_policy.pdf
=============================================


Vulnerability Description:
==========================

Documentum Administrator and Documentum Webtop were found to be vulnerable to arbitrary file overwrite, by specifying an arbitrary filename attribute
to the “dmclTrace.jsp” page. It is also possible to control the contents of the overwritten file, which could allow the remote upload and execution of
arbitrary code in the context of the user running the application server.


Impact:
=======
Exploitation of this vulnerability would allow an attacker to overwrite arbitrary files on the server filesystem. This could be used to upload and
execute arbitrary code in the context of the user running the application server.


Solution:
=========
The vendor reported that this vulnerability was fixed in SP4 and later.


Vendor Response:
================
. 2007-12-17: CYBSEC contacted Vendor.
. 2007-12-17: Vendor first response.
. 2008-01-04: Vendor confirmed vuln is fixed in latest SP.
. 2008-01-30: CYBSEC informed the vendor the disclosure plan.
. 2008-02-05: Advisory Public Disclosure.


Contact Information:
====================
For more information regarding the vulnerability feel free to contact the researcher at pmilano <at> cybsec <dot> com.



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-----------------------------------

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