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23 March 2017

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             AUSCERT External Security Bulletin Redistribution

            Rockwell Automation Connected Components Workbench
                               23 March 2017


        AusCERT Security Bulletin Summary

Product:           Rockwell Automation Connected Components Workbench
Publisher:         ICS-CERT
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Increased Privileges            -- Existing Account
                   Denial of Service               -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-5176  

Original Bulletin: 

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Advisory (ICSA-17-047-01)

Rockwell Automation Connected Components Workbench

Original release date: March 21, 2017

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CVSS v3 7.0

Vendor: Rockwell Automation

Equipment: Connected Components Workbench

Vulnerability: DLL Hijack


This advisory was originally posted to the NCCIC Portal on February 16, 2017,
and is being released to the ICS-CERT web site.


The following Connected Components Workbench (CCW), a software configuration 
platform, versions are affected:

Connected Components Workbench Developer Edition, v9.01.00 and earlier.

    9328-CCWDEVESE, and

Connected Components Workbench Free Standard Edition (All Supported 
Languages), v9.01.00 and earlier.


Successful exploitation of this vulnerability could range from a denial of 
service (DoS) to the injection of malicious code into trusted processes, 
depending on the content of the DLL and the risk mitigations in place by the 


Rockwell Automation has released a new version of Connected Components 
Workbench, Version 10.00 and Version 10.01 (All supported languages) which 
addresses the identified vulnerability.

Rockwell Automation recommends updating to the latest version of Connected 
Components Workbench, Version 10.00 or later, which is available at the 
following location:

(link is external)

For more information on this vulnerability and more detailed mitigation 
instructions, please see Rockwell Automation advisory labeled Connected 
Components Workbench Software Dynamic Link Library (DLL) Hijack Version 1.0, 
February 16, 2017, at the following location:

https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1030688 (link
is external)

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. 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 ICSCERT 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.

No known public exploits specifically target this vulnerability. Not remotely
exploitable. High skill level is needed to exploit.



Certain DLLs included with versions of CCW software can be potentially 
hijacked to allow an attacker to gain rights to a victims affected personal 
computer. Such access rights can be at the same or potentially higher level of
privileges as the compromised user account, including and up to computer 
administrator privileges.

CVE-2017-5176 has been assigned to this vulnerability. A CVSS v3 base score of
7.0 has been assigned; the CVSS vector string is 


Ivan Sanchez reported this vulnerability.


Critical Infrastructure Sectors: Commercial Facilities, Defense Industrial 
Base, Energy, and Government Facilities

Countries/Areas Deployed: Globally

Company Headquarters Location: Milwaukee, Wisconsin

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