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ESB-2014.0786 - [Win] Symantec Workspace Streaming: Unauthorised access - Remote/unauthenticated

Date: 21 May 2014

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             AUSCERT External Security Bulletin Redistribution

        Symantec Workspace Streaming XMLRPC Unauthenticated Access
                                21 May 2014


        AusCERT Security Bulletin Summary

Product:           Symantec Workspace Streaming
Publisher:         Symantec
Operating System:  Windows
Impact/Access:     Unauthorised Access -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-1649  

Original Bulletin:

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Advisories Relating to Symantec Products - Symantec Workspace 
Streaming XMLRPC Unauthenticated Access


May 12, 2014




CVSS2        Impact   Exploitability   CVSS2 Vector
Base Score
SWS Unauthenticated XMLRPC Access - High
7.9          10       5.5              AV:A/AC:M/AU:N/C:C/I:C/A:C


The management server for Symantec Workspace Streaming (SWS) does not properly 
handle external XMLRPC requests, which could potentially allow unauthorized 
access to restricted server-side data and server functionality.  A remote user 
could potential create a backdoor on the targeted server resulting in 
unauthorized privilege access.

Affected Products

Product              Version     Build    Solution(s)
Symantec Workspace   7.5.x and   All      Update to SWS ( 7.5 SP1)
Streaming            prior


Symantec Workspace Streaming server does not properly handle incoming HTTPS 
XMLRPC requests.   This could potentially allow a malicious individual 
unauthorized access to sensitive server-side files and functionality.  By 
submitting a sufficiently crafted XMLRPC request, a malicious user could place 
arbitrary code on the server that, if successfully crafted would create an 
unauthorized access point on the server.  This could potentially provide the 
malicious individual application-level access to the SWS server.

In a normal installation, a Symantec Workspace Streaming Server should not be 
accessible externally from the network environment which should limit this to 
an authorized but unprivileged network user attempt.  However, an external 
attacker able to successfully leverage network access by enticing an 
authorized user to visit a malicious site or click on a malicious HTML email 
could possibly further leverage that access to attempt to exploit this issue.

Symantec Response

Symantec product engineers have released SWS 7.5SP1 to resolve this issue. 
Symantec engineers reviewed and continue to review all product functionality 
to further enhance the overall security of Symantec Workspace Streaming. 

Symantec recommends customers apply the available update as soon as possible 
to avoid this type of issue.  Symantec is not aware of exploitation of or 
adverse customer impact from this issue.

Update Information

Symantec Workspace Steaming 7.5SP1 is available through Symantec File Connect.


Symantec Security Response has released IPS signature 27339 - “Symantec 
Workspace Streaming XMLRPC RCE" to help detect and block remote exploit 
attempts. Signatures are available through normal Symantec security updates.

Best Practices

As part of normal best practices, Symantec strongly recommends the following:

   Restrict access to administrative or management systems to authorized 
   privileged users.
   Restrict remote access, if required, to trusted/authorized systems only.
   Run under the principle of least privilege where possible to limit the 
   impact of potential exploit.
   Keep all operating systems and applications current with vendor patches.
   Follow a multi-layered approach to security. At a minimum, run both 
   firewall and anti-malware applications to provide multiple points of 
   detection and protection to both inbound and outbound threats.
   Deploy network- and host-based intrusion detection systems to monitor 
   network traffic for signs of anomalous or suspicious activity. This may aid 
   in the detection of attacks or malicious activity related to the 
   exploitation of latent vulnerabilities.


Symantec thanks Andrea Micalizzi (rgod) working through HP’s Zero Day 
Initiative(ZDI) for reporting this and ZDI for working with us as we addressed 


BID: Security Focus,, has assigned Bugtraq IDs 
(BIDs) to these issues for inclusion in the Security Focus vulnerability 

CVE: These issues are candidates for inclusion in the CVE list 
(, which standardizes names for security problems. 

CVE             BID         Description
CVE-2014-1649   BID 67189   Symantec Workspace Unauthenticated XMLRPC Access
Symantec takes the security and proper functionality of our products very 
seriously. As founding members of the Organization for Internet Safety 
(OISafety), Symantec supports and follows responsible disclosure guidelines.

Please contact if you feel you have discovered a security 
issue in a Symantec product. A member of the Symantec Product Security team 
will contact you regarding your submission to coordinate any required 
response. Symantec strongly recommends using encrypted email for reporting 
vulnerability information to The Symantec Product 
Security PGP key can be found at the location below.

Symantec has developed a Product Vulnerability Response document outlining the 
process we follow in addressing suspected vulnerabilities in our products. 
This document is available below.

Symantec Vulnerability Response Policy

Symantec Product Vulnerability Management PGP Key Symantec Product 
Vulnerability Management PGP Key	

Copyright (c) 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 Product Security. 
Reprinting the whole or part of this alert in any medium other than 
electronically requires permission from

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.
Symantec, Symantec products, Symantec Product Security, and are registered trademarks of Symantec Corp. and/or 
affiliated companies in the United States and other countries. All other 
registered and unregistered trademarks represented in this document are the 
sole property of their respective companies/owners.

* Signature names may have been updated to comply with an updated IPS 
Signature naming convention. See 
for more information.

Last modified on: May 12, 2014

- --------------------------END INCLUDED TEXT--------------------

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