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iDefense Security Advisory 10.31.07: Symantec Altiris Deployment Solution TFTP/MTFTP Service Directory Traversal Vulnerability
From: iDefense Labs <labs-no-reply () idefense com>
Date: Wed, 31 Oct 2007 14:39:39 -0400

Symantec Altiris Deployment Solution TFTP/MTFTP Service Directory
Traversal Vulnerability

iDefense Security Advisory 10.31.07
http://labs.idefense.com/intelligence/vulnerabilities/
Oct 31, 2007

I. BACKGROUND

Symantec Altiris Deployment Solution is an automated OS deployment
solution that is used for deploying and managing servers, desktops, and
notebooks from a central location. More information is available on the
vendor's site at the following URL.

http://www.altiris.com/Products/DeploymentSolution.aspx

II. DESCRIPTION

Remote exploitation of a directory traversal vulnerability in Symantec's
Altiris Deployment Solution products could allow attackers to gain read
access to arbitrary files hosted on the Altiris server.

Altiris Deployment Solution includes a tftp/mtftp server within its
optional PXE server component which suffers from a directory traversal
condition. The server runs with SYSTEM level privileges and allows
unauthenticated attackers to download any file on the system.

III. ANALYSIS

Exploitation allows attackers to read arbitrary files from the server
machine. The tftp/mftp daemon runs with SYSTEM level privileges, so any
file readable by SYSTEM with a known file path can be downloaded without
authentication.

IV. DETECTION

iDefense confirmed the existence of this vulnerability in Altiris
Deployment Solution for Windows version 6.8. The specific vulnerable
executable is pxemtftp.exe version 6.8.8297.48.

V. WORKAROUND

If the PXE server component is not required in your environment it
should be disabled.

VI. VENDOR RESPONSE

Symantec Altiris has addressed this vulnerability by releasing a HotFix.
More information is available in Symantec's advisory at the following
URL.

http://www.symantec.com/avcenter/security/Content/2007.10.31.html

VII. CVE INFORMATION

The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CVE-2007-3874 to this issue. This is a candidate for inclusion in
the CVE list (http://cve.mitre.org/), which standardizes names for
security problems.

VIII. DISCLOSURE TIMELINE

07/13/2007  Initial vendor notification
07/16/2007  Initial vendor response
10/31/2007  Public disclosure

IX. CREDIT

This vulnerability was reported to iDefense by Manuel Santamarina
Suarez.

Get paid for vulnerability research
http://labs.idefense.com/methodology/vulnerability/vcp.php

Free tools, research and upcoming events
http://labs.idefense.com/

X. LEGAL NOTICES

Copyright © 2007 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 e-mail customerservice () idefense com 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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