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AUSCERT External Security Bulletin Redistribution
ESB-2017.3151
Advisory (ICSA-17-341-02 ) Rockwell Automation FactoryTalk
Alarms and Events
8 December 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: Rockwell Automation FactoryTalk Alarms and Events
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-14022
Original Bulletin:
https://ics-cert.us-cert.gov/advisories/ICSA-17-341-02
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Advisory (ICSA-17-341-02 )
Rockwell Automation FactoryTalk Alarms and Events
Original release date: December 07, 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 7.5
ATTENTION: Remotely exploitable/low skill level to exploit.
Vendor: Rockwell Automation
Equipment: FactoryTalk Alarms and Events
Vulnerability: Improper Input Validation
AFFECTED PRODUCTS
The following versions of FactoryTalk Alarms and Events, a component of the
Factory Talk Services Platform, are affected:
FactoryTalk Alarms and Events, Version 2.90 and earlier
FactoryTalk Alarms and Events is used in the following Rockwell Automation
products:
FactoryTalk Services (RSLinx Enterprise), all versions.
FactoryTalk View SE, versions 5.00 and later.
Studio 5000 Logix Designer, versions 24 and later.
IMPACT
Successful exploitation of this vulnerability may allow an attacker to cause a
denial of service condition in the in the history archiver service running on
FactoryTalk Alarms and Events.
MITIGATION
Rockwell Automation recommends upgrading to the latest version of FactoryTalk
Alarms and Events, Version 2.90 or later, and applying available patches,
which can be obtained at the following location:
https://compatibility.rockwellautomation.com/Pages/MultiProductDownload.aspx?crumb=112
(link is external)
FactoryTalk Alarm and Event history is logged using the Rockwell Alarm
Historian service using Port 403, writing alarms and events to the
user-configured SQL Server database. If the Rockwell Automation Alarm
Historian service is on the same machine as the Rockwell Alarm Event service,
then Port 403 can be blocked remotely as the historical information is being
logged to the local host rather than a remote host. Any other machine in the
system that does not have the Rockwell Alarm Historian service on the same
machine as the Rockwell Alarm Event service will require access to Port 403.
However, FactoryTalk View SE clients using the Alarm and Event Log Viewer to
view FactoryTalk Alarm and Event history do not require Port 403, and can thus
be blocked.
Rockwell Automation recommends that users who are unable to update and apply
available patches should pursue risk mitigation strategies provided below. In
addition, users are encouraged, when possible, to combine these strategies
with the general security guidelines.
Block all traffic to EtherNet/IP or other CIP protocol-based devices from
outside the Manufacturing Zone by blocking or restricting access to TCP and
UDP Port 2222 and Port 44818 using proper network infrastructure controls
(such as firewalls), Unified Threat Management (UTM) devices, or other
security appliances. For more information on TCP/UDP ports used by Rockwell
Automation Products, see Knowledgebase Article ID 898270 (link is external).
Sign-in is required to access this Knowledgebase Article.
Use trusted software, software patches, antivirus/antimalware programs, and
interact only with trusted web sites and attachments.
Rockwell Automations security notification is available at the following URL
with a valid account (sign-in required):
https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1065696 (link
is external)
NCCIC/ICS-CERT recommends that users take defensive measures to minimize the
risk of exploitation of this vulnerability. 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.
VULNERABILITY OVERVIEW
IMPROPER INPUT VALIDATION CWE-20
An unauthenticated attacker with remote access to a network with FactoryTalk
Alarms and Events can send a specially crafted set of packets packet to Port
403/TCP (the history archiver service), causing the service to either stall or
terminate.
CVE-2017-14022 has been assigned to this vulnerability. A CVSS v3 base score
of 7.5 has been assigned; the CVSS vector string is
(AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
RESEARCHER
A major Oil and Gas company reported this vulnerability to ICS-CERT.
BACKGROUND
Critical Infrastructure Sectors: Chemical, Critical Manufacturing, Food and
Agriculture, Water and Wastewater Systems
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Milwaukee, Wisconsin
Contact Information
For any questions related to this report, please contact the NCCIC at:
Email: NCCICCUSTOMERSERVICE@hq.dhs.gov (link sends e-mail)
Toll Free: 1-888-282-0870
For industrial control systems cybersecurity information:
http://ics-cert.us-cert.gov
or incident reporting: https://ics-cert.us-cert.gov/Report-Incident?
The NCCIC continuously strives to improve its products and services. You can
help by choosing one of the links below to provide feedback about this
product.
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