1. Symantec/
  2. Security Response/
  3. Security Updates Detail

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


May 12, 2014








Base Score



CVSS2 Vector

SWS Unauthenticated XMLRPC Access - High






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





Symantec Workspace Streaming

7.5.x and prior


Update to SWS ( 7.5 SP1)


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 it.




BID: Security Focus, http://www.securityfocus.com, has assigned Bugtraq IDs (BIDs) to these issues for inclusion in the Security Focus vulnerability database.

CVE: These issues are candidates for inclusion in the CVE list (http://cve.mitre.org), which standardizes names for security problems. 






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.
Symantec has developed a Software Security Vulnerability Management Process document outlining the process we follow in addressing suspected vulnerabilities in our products.
Symantec Corporation firmly believes in a proactive approach to secure software development and implements security review into various stages of the software development process. Additionally, Symantec is committed to the security of its products and services as well as to its customers’ data. Symantec is committed to continually improving its software security process.
This document provides an overview of the current Secure Development Lifecycle (SDLC) practice applicable to Symantec’s product and service teams as well as other software security related activities and policies used by such teams. This document is intended as a summary and does not represent a comprehensive list of security testing and practices conducted by Symantec in the software development process.
Please contact secure@symantec.com if you believe you have discovered a security issue in a Symantec product. A member of the Symantec Software Security team will contact you regarding your submission to coordinate any required response. Symantec strongly recommends using encrypted email for reporting vulnerability information to secure@symantec.com.
The Symantec Software Security PGP key can be found at the following location:
Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Software Security. Reprinting the whole or part of this alert in any medium other than electronically requires permission from secure@symantec.com.
Last modified on: May 12, 2014
Security Response Blog
The State of Spam