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AUSCERT External Security Bulletin Redistribution
ESB-2017.0781
Rockwell Automation Connected Components Workbench
23 March 2017
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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:
https://ics-cert.us-cert.gov/advisories/ICSA-17-047-01
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Advisory (ICSA-17-047-01)
Rockwell Automation Connected Components Workbench
Original release date: March 21, 2017
Legal Notice
All information products included in http://ics-cert.us-cert.gov 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 http://www.us-cert.gov/tlp/.
CVSS v3 7.0
Vendor: Rockwell Automation
Equipment: Connected Components Workbench
Vulnerability: DLL Hijack
REPOSTED INFORMATION
This advisory was originally posted to the NCCIC Portal on February 16, 2017,
and is being released to the ICS-CERT web site.
AFFECTED PRODUCTS
The following Connected Components Workbench (CCW), a software configuration
platform, versions are affected:
Connected Components Workbench Developer Edition, v9.01.00 and earlier.
9328-CCWDEVENE,
9328-CCWDEVZHE,
9328-CCWDEVFRE,
9328-CCWDEVITE,
9328-CCWDEVDEE,
9328-CCWDEVESE, and
9328-CCWDEVPTE.
Connected Components Workbench Free Standard Edition (All Supported
Languages), v9.01.00 and earlier.
IMPACT
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
victim.
MITIGATION
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:
http://compatibility.rockwellautomation.com/Pages/MultiProductFindDownloads.aspx?crumb=112&refSoft=1&toggleState=&versions=55834,55972
(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.
VULNERABILITY OVERVIEW
DLL HIJACKING CWE-427
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
(AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).
RESEARCHER
Ivan Sanchez reported this vulnerability.
BACKGROUND
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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