This updated advisory is a follow-up to the original advisory titled ICSA-16-287-05 Moxa ioLogik E1200 Series Vulnerabilities that was published October 13, 2016, on the NCCIC/ICS-CERT web site.
Alexandru Ariciu of Applied Risk has identified vulnerabilities in Moxaβs ioLogik E1200 series and ioLogik E2200 series devices. Moxa has produced a new edition of the firmware to mitigate these vulnerabilities. Alexandru Ariciu has tested the firmware to validate that it resolves the vulnerabilities.
These vulnerabilities could be exploited remotely. Exploits that target these vulnerabilities are known to be publicly available.
Moxa reports that the vulnerabilities affect the following products:
An attacker who exploits these vulnerabilities may be able to remotely execute arbitrary code, modify parameters and settings, or reset the device.
Impact to individual organizations depends on many factors that are unique to each organization. ICS-CERT recommends that organizations evaluate the impact of these vulnerabilities based on their operational environment, architecture, and product implementation.
Moxa is a Taiwan-based company that maintains offices in several countries around the world, including the US, UK, India, Germany, France, China, Russia, and Brazil.
The affected products, ioLogik E1200 series and E2200 series, are remote I/O for use in monitoring. According to Moxa, ioLogik is deployed across several sectors, including Commercial Facilities and Energy. Moxa estimates that these products are used primarily in the United States, Europe, and Asia.
The web application fails to sanitize user input, which may allow an attacker to inject script or execute arbitrary code.
CVE-2016-8359b has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).c
A password is transmitted in a format that is not sufficiently secure.
CVE-2016-8372e has been assigned to this vulnerability. A CVSS v3 base score of 8.1 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).f
Users are restricted to using short passwords.
CVE-2016-8379h has been assigned to this vulnerability. A CVSS v3 base score of 8.1 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).i
The web application may not sufficiently verify whether a request was provided by a valid user.
CVE-2016-8350k has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).l
These vulnerabilities could be exploited remotely.
Detailed vulnerability information is publicly available that could be used to develop an exploit that targets these vulnerabilities.
An attacker with a low skill would be able to exploit these vulnerabilities.
Moxa has created new firmware to mitigate these vulnerabilities. It recommends that all users upgrade to the latest version. Moxa recommends installing the latest edition of the firmware, which can be downloaded at the following location:
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=12462
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=12469
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=12467
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=12466
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=12464
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=12460
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=12461
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=12458
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=12463
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=12465
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=13567
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=13568
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=13569
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=13570
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=13571
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=13572
http://www.moxa.com/support/DownloadFile.aspx?type=support&id=13573
ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should:
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 ICSβCERT Technical Information Paper, ICS-TIP-12-146-01BβTargeted 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.
Contact Information
For any questions related to this report, please contact the CISA at:
Email: [email protected]
Toll Free: 1-888-282-0870
For industrial control systems cybersecurity information: https://us-cert.cisa.gov/ics
or incident reporting: https://us-cert.cisa.gov/report
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www.moxa.com/support/DownloadFile.aspx?type=support&id=12458
www.moxa.com/support/DownloadFile.aspx?type=support&id=12460
www.moxa.com/support/DownloadFile.aspx?type=support&id=12461
www.moxa.com/support/DownloadFile.aspx?type=support&id=12462
www.moxa.com/support/DownloadFile.aspx?type=support&id=12463
www.moxa.com/support/DownloadFile.aspx?type=support&id=12464
www.moxa.com/support/DownloadFile.aspx?type=support&id=12465
www.moxa.com/support/DownloadFile.aspx?type=support&id=12466
www.moxa.com/support/DownloadFile.aspx?type=support&id=12467
www.moxa.com/support/DownloadFile.aspx?type=support&id=12469
www.moxa.com/support/DownloadFile.aspx?type=support&id=13567
www.moxa.com/support/DownloadFile.aspx?type=support&id=13568
www.moxa.com/support/DownloadFile.aspx?type=support&id=13569
www.moxa.com/support/DownloadFile.aspx?type=support&id=13570
www.moxa.com/support/DownloadFile.aspx?type=support&id=13571
www.moxa.com/support/DownloadFile.aspx?type=support&id=13572
www.moxa.com/support/DownloadFile.aspx?type=support&id=13573
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