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Category:   Application (Generic)  >   2X ThinClientServer Vendors:   2X Software
2X ThinClientServer Lets Remote Users Gain Administrative Access
SecurityTracker Alert ID:  1017350
SecurityTracker URL:
CVE Reference:   CVE-2006-6221   (Links to External Site)
Date:  Dec 7 2006
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 4.0
Description:   A vulnerability was reported in 2X ThinClientServer. A remote user can gain administrative access to the target application.

A remote user can send a specially crafted request to create an administrative account on the target application. No authentication is required.

Version 4.0 is not affected.

Oliver Karow of Symantec Vulnerability Research discovered this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   The vendor has issued a fixed version (4.0.2248).

[Editor's note: Version 4.x is not affected, however, the vendor recommends that version 3.x users upgrade to the latest build of the 4.x version.]

Vendor URL: (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), Windows (Any)

Message History:   None.

 Source Message Contents

Subject:  SYMSA-2006-012: 2X ThinClientServer Create Admin Account Replay

Hash: SHA1

                   Symantec Vulnerability Research
                           Security Advisory

   Advisory ID: SYMSA-2006-012
Advisory Title: 2X ThinClientServer Create Admin Account Replay Vulnerability
        Author: Oliver Karow /
  Release Date: 12-04-2006
   Application: 2X ThinClientServer Enterprise Edition v3_sp2-r1865 
      Platform: Windows / Linux
      Severity: Remotely exploitable / Administrator Access
 Vendor status: Verified by vendor. Resolved in ThinClientServer 4.0.2248
    CVE Number: CVE-2006-6221


	From vendor's website:

"2X ThinClientServer provides a complete solution for the central
deployment, configuration and management of thin clients, and
provides load balancing and redundancy of terminal servers."

It is possible to create administrative user accounts for the application,
without authentication.


	During the installation procedure, an administrative user account
for the application is created. Sending the same request with a different
username, after the installation is completed, creates an additional administrative
account. The account can be created remotely and authentication is not required.

Vendor Response:

The above vulnerability is fixed and applicable to the following versions:
- - ThinClientServer 4.0
	Users of ThinClientServer Version 4 are unaffected by this issue.
- - ThinClientServer 3.0
	Please Upgrade your machine to Version 4.0.2248 or higher and deploy
the new ThinClientOS 4.0 on your network to resolve this issue. This can be
done by uploading the new image zip file in the Management Console and setting
it as the new default image for your ThinClients.

Customers who have prior versions of ThinClientServer are requested to upgrade
to at least 4.0.2248 version.


	Upgrade to Version 4.0.2248 or higher to solve the issue.

Common Vulnerabilities and Exposures (CVE) Information:

The Common Vulnerabilities and Exposures (CVE) project has assigned
the following names to these issues.  These are candidates for
inclusion in the CVE list (, which standardizes
names for security problems.


- -------Symantec Vulnerability Research Advisory Information-------

For questions about this advisory, or to report an error:

For details on Symantec's Vulnerability Reporting Policy:

Symantec Vulnerability Research Advisory Archive:  

Symantec Vulnerability Research GPG Key:

- -------------Symantec Product Advisory Information-------------

To Report a Security Vulnerability in a Symantec Product: 

For general information on Symantec's Product Vulnerability 
reporting and response:

Symantec Product Advisory Archive:

Symantec Product Advisory PGP Key:

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

Copyright (c) 2006 by Symantec Corp.
Permission to redistribute this alert electronically is granted 
as long as it is not edited in any way unless authorized by 
Symantec Consulting Services. Reprinting the whole or part of 
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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 
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Neither the author nor the publisher accepts any liability for any 
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Version: GnuPG v1.4.2.2 (GNU/Linux)



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