EMC DiskXtender Built-in Password Lets Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1019827
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SecurityTracker URL: http://securitytracker.com/id?1019827
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CVE Reference: CVE-2008-0961
(Links to External Site)
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Date: Apr 11 2008
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Impact: Execution of arbitrary code via network, Root access via network
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Fix Available: Yes
Vendor Confirmed: Yes
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Advisory: iDEFENSE
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Version(s): 6.20.060; possibly other versions
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Description: A vulnerability was reported in EMC DiskXtender. A remote user can use a built-in username and password to execute arbitrary commands on the target system.
The system includes a hard-coded login username and password. A remote user can connect to the RPC interface and supply the credentials
to access the system.
The remote user can create and delete files on the target server and execute arbitrary DiskXtender commands.
This allows the user to execute arbitrary commands with System level privileges.
The vendor was notified on February 21, 2008.
Stephen
Fewer of Harmony Security reported this vulnerability via iDefense.
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Impact: A remote user can execute arbitrary commands on the target system.
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Solution: The vendor has issued a fix.
The vendor's advisory is available as knowledge base article emc184091, available to registered users at:
http://powerlink.emc.com
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Vendor URL: www.emc.com/products/family/diskxtender-family.htm (Links to External Site)
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Cause: Authentication error
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Underlying OS: Windows (Any)
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Reported By: iDefense Labs Security Advisories <idlabs-advisories@idefense.com>
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Message History:
None.
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Source Message Contents
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Date: Thu, 10 Apr 2008 19:08:10 -0400
From: iDefense Labs Security Advisories <idlabs-advisories@idefense.com>
Subject: iDefense Security Advisory 04.09.08: EMC DiskXtender Authentication
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iDefense Security Advisory 04.09.08
http://labs.idefense.com/intelligence/vulnerabilities/
Apr 09, 2008
I. BACKGROUND
EMC DiskXtender is a data backup and migration suite. It consists of
several applications that are used to manage storing large quantities
of files across multiple storage devices. The main components of the
product suite are the File System Manager, the MediaStor and the
License Server. These components all create RPC endpoints that can be
accessed remotely. For more information see the vendor's website at the
following URL.
http://software.emc.com/products/product_family/diskxtender_family.htm
II. DESCRIPTION
Remote exploitation of an authentication bypass vulnerability in EMC
Corp.'s DiskXtender could allow an attacker to execute arbitrary code.
Each of the main components of the DiskXtender suite is vulnerable to an
authentication bypass vulnerability. Specifically, the authentication
code contains a hard-coded login and password. By connecting to the RPC
interface, and logging on with these credentials, it is possible to
bypass the normal authentication process.
III. ANALYSIS
Exploitation of this vulnerability results in an unauthenticated
attacker gaining administrative access to the DiskXtender server. This
allows an attacker to create and delete files on the backup server, and
run other DiskXtender commands. This could potentially lead to the
execution of arbitrary code with SYSTEM privileges.
IV. DETECTION
iDefense confirmed the existence of this vulnerability in DiskXtender
version 6.20.060 for Windows. Previous versions may also be affected.
V. WORKAROUND
iDefense is currently unaware of any effective workaround for this
issue.
VI. VENDOR RESPONSE
"EMC has issued updates to correct this issue. More details can be found
in knowledgebase article emc184091 available from powerlink.emc.com. EMC
customers can further contact EMC Software Technical Support at
1-877-534-2867."
VII. CVE INFORMATION
The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CVE-2008-0961 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
02/21/2008 Initial vendor notification
02/22/2008 Initial vendor response
04/09/2008 Coordinated public disclosure
IX. CREDIT
This vulnerability was reported to iDefense by Stephen Fewer of Harmony
Security (www.harmonysecurity.com).
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http://labs.idefense.com/methodology/vulnerability/vcp.php
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http://labs.idefense.com/
X. LEGAL NOTICES
Copyright © 2008 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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