Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2018.2115
Advisory (ICSA-18-200-03): Echelon SmartServer 1,
SmartServer 2, SmartServer 3, i.LON 100, i.LON 600
20 July 2018
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Echelon SmartServer
Echelon i.LON
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-10627 CVE-2018-8859 CVE-2018-8855
CVE-2018-8851
Original Bulletin:
https://ics-cert.us-cert.gov/advisories/ICSA-18-200-03
- --------------------------BEGIN INCLUDED TEXT--------------------
Advisory (ICSA-18-200-03)
Echelon SmartServer 1, SmartServer 2, SmartServer 3, i.LON 100, i.LON 600
Original release date: July 19, 2018
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/.
1. EXECUTIVE SUMMARY
CVSS v3 9.8
ATTENTION: Exploitable remotely/low skill level to exploit
Vendor: Echelon
Equipment: SmartServer 1, SmartServer 2, i.LON 100, i.LON 600
Vulnerabilities: Information Exposure, Authentication Bypass Using an
Alternate Path or Channel, Unprotected Storage of Credentials, Cleartext
Transmission of Sensitive Information
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow for remote
code execution on the device.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following Smart Server and i.LON products, which are network devices,
are affected:
SmartServer 1 all versions,
SmartServer 2 all versions prior to release 4.11.007,
i.LON 100 all versions, and
i.LON 600 all versions.
3.2 VULNERABILITY OVERVIEW
3.2.1 INFORMATION EXPOSURE CWE-200
An attacker can use the SOAP API to retrieve and change sensitive
configuration items such as the usernames and passwords for the Web and
FTP servers. This vulnerability does not affect the i.LON 600 product.
CVE-2018-10627 has been assigned to this vulnerability. A CVSS v3
base score of 9.8 has been calculated; the CVSS vector string is
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
3.2.2 AUTHENTICATION BYPASS USING AN ALTERNATE PATH OR CHANNEL CWE-288
An attacker can bypass the required authentication specified in the security
configuration file by including extra characters in the directory name
when specifying the directory to be accessed. This vulnerability does not
affect the i.LON 600 product.
CVE-2018-8859 has been assigned to this vulnerability. A CVSS v3
base score of 9.8 has been calculated; the CVSS vector string is
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
3.2.3 UNPROTECTED STORAGE OF CREDENTIALS CWE-256
The devices store passwords in plaintext, which may allow an attacker
with access to the configuration file to log into the SmartServer web
user interface.
CVE-2018-8851 has been assigned to this vulnerability. A CVSS v3
base score of 9.8 has been calculated; the CVSS vector string is
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
3.2.4 CLEARTEXT TRANSMISSION OF SENSITIVE INFORMATION CWE-319
The devices allow unencrypted Web connections by default, and devices can
receive configuration and firmware updates by unsecure FTP.
CVE-2018-8855 has been assigned to this vulnerability. A CVSS v3
base score of 9.8 has been calculated; the CVSS vector string is
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
3.3 BACKGROUND
CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Critical
Manufacturing, Information Technology
COUNTRIES/AREAS DEPLOYED: Worldwide
COMPANY HEADQUARTERS LOCATION: Santa Clara, California
3.4 RESEARCHER
Echelon, working with Daniel Crowley and IBM's X-Force Red team,
self-reported these vulnerabilities to NCCIC.
4. MITIGATIONS
Echelon recommends that affected users install SmartServer 2 Service
Pack 7 (Version 4.11.007), to mitigate CVE-2018-8859, CVE-2018-8851,
and CVE-2018-8855, which can be downloaded at the following link:
https://www.echelon.com/software-downloads?ele=153-0608-01A
The following manual mitigation is also recommended:
For CVE-2018-10627, Echelon recommends affected users modify the
WebParams.dat file.
Echelon recommends that the following mitigation is implemented until
SmartServer 2 Service Pack 7 is installed:
All SmartServer and i.LON 600 devices along with any servers using the
SmartServer and i.Lon services should be installed behind a firewall or
on a VLAN without other devices.
Change the username and password during the initial installation of the
affected products.
Disable unencrypted services and secure encrypted services for the
SmartServer or i.LON 100.
NCCIC recommends 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.
NCCIC reminds organizations to perform proper impact analysis and risk
assessment prior to deploying defensive measures.
NCCIC 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 on the ICS-CERT website in the Technical Information Paper,
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies.
Organizations observing any suspected malicious activity should follow
their established internal procedures and report their findings to NCCIC
for tracking and correlation against other incidents.
NCCIC also recommends that users take the following measures to protect
themselves from social engineering attacks:
Do not click web links or open unsolicited attachments in email messages.
Refer to Recognizing and Avoiding Email Scams for more information on
avoiding email scams.
Refer to Avoiding Social Engineering and Phishing Attacks for more
information on social engineering attacks.
No known public exploits specifically target these vulnerabilities.
Contact Information
For any questions related to this report, please contact the NCCIC at:
Email: NCCICCUSTOMERSERVICE@hq.dhs.gov
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?
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=Zqab
-----END PGP SIGNATURE-----