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ESB-2016.0752 - [Appliance] XZERES 442SR Wind Turbine: Cross-site scripting - Remote with user interaction

Date: 22 March 2016

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             AUSCERT External Security Bulletin Redistribution

       XZERES 442SR Wind Turbine Cross-site Scripting Vulnerability
                               22 March 2016


        AusCERT Security Bulletin Summary

Product:           XZERES 442SR Wind Turbine
Publisher:         ICS-CERT
Operating System:  Network Appliance
Impact/Access:     Cross-site Scripting -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-2287  

Original Bulletin:

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

Advisory (ICSA-15-342-01B)

XZERES 442SR Wind Turbine Cross-site Scripting Vulnerability (Update B)

Original release date: December 08, 2015 | Last revised: March 21, 2016

Legal Notice

All information products included in are provided
"as is" for informational purposes only. The Department of Homeland Security 
(DHS) does not provide any warranties of any kind regarding any information 
contained within. DHS does not endorse any commercial product or service, 
referenced in this product or otherwise. Further dissemination of this product
is governed by the Traffic Light Protocol (TLP) marking in the header. For 
more information about TLP, see


This updated advisory is a follow-up to the updated advisory titled 
ICSA-15-342-01A XZERES 442SR Wind Turbine Cross-site Scripting Vulnerability 
that was published December 10, 2015, on the NCCIC/ICS-CERT web site.

Independent researcher Karn Ganeshen has identified a cross-site scripting 
vulnerability in XZERESs 442SR turbine generator operating system (OS). XZERES
has produced a patch to mitigate this vulnerability.

This vulnerability could be exploited remotely.


The following XZERES product is affected:

442SR Wind Turbine.


Successful exploitation of this vulnerability could allow the injection of 
malicious script.

This exploit can cause a loss of power for all attached systems.

Impact to individual organizations depends on many factors that are unique to
each organization. ICS-CERT recommends that organizations evaluate the impact
of this vulnerability based on their operational environment, architecture, 
and product implementation.


XZERES is a US-based energy company that maintains offices in several 
countries around the world, including the UK, Italy, Japan, Vietnam, 
Philippines, and Myanmar.

The affected product, 442SR Wind Turbine, has a web-based interface system. 
According to XZERES, the 442SR is deployed across the Energy sector. XZERES 
estimates that this product is used worldwide.




The 442SR OS does not provide adequate input validation. This could allow 
malicious script to be injected into the program.

- --------- Begin Update B Part 1 of 1 --------

CVE-2016-2287[b] has been assigned to this vulnerability.

- --------- End Update B Part 1 of 1 ----------

A CVSS v3 base score of 9.8 has been assigned; the CVSS vector string is 



This vulnerability could be exploited remotely.


No known public exploits specifically target this vulnerability.


Crafting a working exploit for this vulnerability would be easy. There is no 
public exploit for this exact vulnerability; however, code exists online that
can be easily modified to initiate an XSS with this vulnerability.


XZERES has developed a manually deployable patch that mitigates this 

Contact the XZERES Service Team at 1-877-404-9438 (option 4) for instructions
and support implementing the patch.

ICS-CERT recommends that users take defensive measures to minimize the risk of
exploitation of these vulnerabilities. Specifically, users should:

Minimize network exposure for all control system devices and/or systems, and 
ensure that they are not accessible from the Internet.

Locate control system networks and remote devices behind firewalls, and 
isolate them from the business network.

When remote access is required, use secure methods, such as Virtual Private 
Networks (VPNs), recognizing that VPNs may have vulnerabilities and should be
updated to the most current version available. Also recognize that VPN is only
as secure as the connected devices.

ICS-CERT reminds organizations to perform proper impact analysis and risk 
assessment prior to deploying defensive measures.

ICS-CERT also provides a section for control systems security recommended 
practices on the ICS-CERT web page at: Several recommended
practices are available for reading and download, including Improving 
Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

Additional mitigation guidance and recommended practices are publicly 
available in the ICS-CERT Technical Information Paper, 
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation 
Strategies, that is available for download from the ICS-CERT web site 

Organizations observing any suspected malicious activity should follow their 
established internal procedures and report their findings to ICS-CERT for 
tracking and correlation against other incidents.

a. CWE-79: Improper Neutralization of Input During Web Page Generation 
(Cross-site Scripting),, web 
site last accessed December 08, 2015.

b. NVD,, NIST 
uses this advisory to create the CVE web site report. This web site will be 
active sometime after publication of this advisory.

c. CVSS Calculator,, 
web site last accessed December 08, 2015.

Contact Information

For any questions related to this report, please contact ICS-CERT at:

Email: (link sends e-mail)

Toll Free: 1-877-776-7585

International Callers: (208) 526-0900

For industrial control systems security information and incident reporting:

ICS-CERT continuously strives to improve its products and services. You can 
help by choosing one of the links below to provide feedback about this 

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

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NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
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Contact information for the authors of the original document is included
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information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

Australian Computer Emergency Response Team
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