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AUSCERT External Security Bulletin Redistribution
ESB-2017.0585
Eaton xComfort Ethernet Communication Interface
6 March 2017
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AusCERT Security Bulletin Summary
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Product: Eaton xComfort Ethernet Communication Interface
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
Original Bulletin:
https://ics-cert.us-cert.gov/advisories/ICSA-17-061-01
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Advisory (ICSA-17-061-01)
Eaton xComfort Ethernet Communication Interface
Original release date: March 02, 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: Eaton
Equipment: xComfort Ethernet Communication Interface
Vulnerability: Improper Access Control
AFFECTED PRODUCTS
The following versions of xComfort Ethernet Communication Interface (ECI),
a building automation system, are affected:
xComfort ECI Versions 1.07 and prior.
IMPACT
Successful exploitation of this vulnerability may allow a remote attacker
to access backup files and system logs without authenticating.
MITIGATION
Eaton recommends that affected users upgrade to the latest version of the
software which is downloadable from the Software Downloads tab under the
Documentation tab at the following link:
http://www.eaton.eu/Europe/Electrical/ProductsServices/Residential/xComfort-RFSmartHomeSolutions/index.htm?wtredirect=www.eaton.eu/xcomfort#tabs-11
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 ACCESS CONTROL CWE-284
By accessing a specific uniform resource locator (URL) on the webserver,
a malicious user may be able to access files without authenticating.
CVE-2017-9368 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:H/I:N/A:N).
RESEARCHER
Maxim Rupp identified the vulnerability.
BACKGROUND
Critical Infrastructure Sector(s): Commercial Facilities
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Dublin, Ireland
Contact Information
For any questions related to this report, please contact ICS-CERT at:
Email: ics-cert@hq.dhs.gov
Toll Free: 1-877-776-7585
International Callers: (208) 526-0900
For industrial control systems security information and incident reporting:
http://ics-cert.us-cert.gov
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 product.
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