CVSS v3 9.8
ATTENTION: Exploitable remotely/low skill level to exploit
This updated advisory is a follow-up to the original advisory titled ICSA-18-200-03 Echelon SmartServer 1, SmartServer 2, SmartServer 3, i.LON 100, i.LON 600 that was published July 19, 2018, on the NCCIC/ICS-CERT website.
Successful exploitation of these vulnerabilities could allow for remote code execution on the device.
The following Smart Server and i.LON products, which are network devices, are affected:
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.
--------- Begin Update A Part 1 of 2 --------
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.
--------- End Update A Part 1 of 2 --------
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.
The devices allow unencrypted Web connections by default, and devices can receive configuration and firmware updates by unsecure FTP.
Echelon, working with Daniel Crowley and IBM’s X-Force Red team, self-reported these vulnerabilities to NCCIC.
--------- Begin Update A Part 2 of 2 --------
For CVE-2018-8859, Echelon recommends affected users install the i.LON 600 and any servers using the i.LON 600 behind a firewall or on a VLAN without other devices. For more information, see Echelon’s security advisory at:
--------- End Update A Part 2 of 2 --------
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:
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:
NCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
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:
No known public exploits specifically target these vulnerabilities.
For any questions related to this report, please contact the CISA at:
Toll Free: 1-888-282-0870
For industrial control systems cybersecurity information: https://www.us-cert.gov/ics
or incident reporting: https://www.us-cert.gov/report
CISA continuously strives to improve its products and services. You can help by choosing one of the links below to provide feedback about this product.
This product is provided subject to this Notification and this Privacy & Use policy.
Was this document helpful? Yes | Somewhat | No