20 July 2018
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 email@example.com 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: firstname.lastname@example.org 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 iQIVAwUBW1FrG2aOgq3Tt24GAQjaHRAAvg1rARgkrHiqkUNsB4cOI/ovVaZH+rzn taaZ9wWG4L+zJFrHgbq/7XHNQ/sbL7XHiUEbkZ6OQxIXHO4bPM/Ytfcbse9j3Z/K Jf45cAOS3HMjWb6Eiuw6afjkfUzsdfa8ZtBKaUqWtL6wvYRRVy71dJYe3DhB9K7k JrkGxtu+nJ8MkPQfLH3OjMgL4VIcsiF5MAEgjxdGykvwqqnQZvDlZ3lEU9hBSYhT G+BTVKKTfzkYrFcgQeJIVWAkvZ1UDK/8RV7b7ZCnMLqSPW2fWbncEvTIYzg8QSWr 8VBA+qMLZ0k/K8nJ25QaAv9z9GWu/TOYrh9dzilKxnLsyAZnPfOKPSQKZfo0CkJV p2dytDuJ0CaN9gHu2J2iyWL6fVzDVB8P45G2pPPnhXzXlSQftbg2rMf0spQp7Uv/ IfS87ThyetWxdhpwKLVUi4HgrFFMibz/fntYopwTViUMexwtfEhoBbaBDDmhafGR XEruWBtIQeafNkmSk2j4R1b4kYnca0FInKK/4TfpQuZbRJNrS9ZdnakP9oOrj0wO BzsL/v+ooeCJcP4PJ4mbcHtl6noegT9Q3NeFyeOvNMcAWtYCLRBbQuNsAsqQs+YU xtcCpss1O1+LMqdBenXHcSnLMGjBKwYXuaDB+1+iEhWaZaN4rQ+cyoBBqbUltc7j bnIjEQE+8a0= =Zqab -----END PGP SIGNATURE-----