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CVSS v3 8.6
ATTENTION: Remotely exploitable/low skill level to exploit.
Vendor: Fuji Electric
Equipment: V-Server VPR
Vulnerability: Stack-based Buffer Overflow
The following versions of V-Server VPR, a data collection and management service, are affected:
- V-Server VPR 22.214.171.124 and prior.
Successful exploitation of this vulnerability could allow a remote attacker to view sensitive information and disrupt the availability of the device.
Fuji Electric has produced firmware 126.96.36.199 that can be obtained from:
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 in the NCCIC 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 NCCIC for tracking and correlation against other incidents.
No known public exploits specifically target this vulnerability.
The stack-based buffer overflow vulnerability has been identified, which may allow remote code execution.
Ariele Caltabiano (kimiya) working with Trend Micro’s Zero Day Initiative reported the vulnerability to NCCIC.
Critical Infrastructure Sector: Critical Manufacturing
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Japan
For any questions related to this report, please contact the CISA at:
Toll Free: 1-888-282-0870
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