ATTENTION: Remotely exploitable/low skill level to exploit.
Vendor: Carlo Gavazzi
Equipment: VMU-C EM, VMU-C PV
Vulnerabilities: Access Control Flaws, CSRF, Sensitive Information Stored In Clear Text
Carlo Gavazzi reports that the vulnerabilities affect the following versions:
Successful exploitation of these vulnerabilities could allow the attacker to execute configuration parameter changes and saving modified configuration.
Carlo Gavazzi has created firmware updates that mitigate these vulnerabilities. Carlo Gavazzi recommends upgrading to the following firmware versions:
The relevant firmware versions are available either by means of the firmware update function embedded in the VMU-C or by downloading them from Carlo Gavazzi’s web site. Please open the link:
NCCIC/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 ICS‑CERT 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. Remotely exploitable. Low skill level is needed to exploit.
The access control flaw allows access to most application functions without authentication.
Successful exploitation of this vulnerability can allow execution of unauthorized actions on the device such as configuration parameter changes, and saving modified configuration.
Sensitive information stored in clear-text.
Karn Ganeshen has reported 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://us-cert.cisa.gov/ics
or incident reporting: https://us-cert.cisa.gov/report
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