According to Oracle, the supported Java versions affected by these vulnerabilities are Java SE: 8u131, 7u141 and 6u151, Java SE Embedded: 8u131, and JRockit: R28.3.14. Improper Access Control vulnerabilities have been reported for Oracle Java SE, which is provided with PHOENIX CONTACT FL MGUARD DM. No known public exploits specifically target these vulnerabilities. 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. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.Īdditional 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. ICS-CERT also provides a section for control systems security recommended practices on the ICS-CERT web page. ICS-CERT reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. Also recognize that VPN is only as secure as the connected devices. 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.Locate control system networks and remote devices behind firewalls, and isolate them from the business network.Minimize network exposure for all control system devices and/or systems, and ensure that they are not accessible from the Internet.NCCIC/ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of these vulnerabilities. When using the packet source delivered by PHOENIX CONTACT on Ubuntu, this is simply done by using the software updater of the operating system. PHOENIX CONTACT recommends that all users of the affected product on Linux should update Java to the latest version. The installer is available for download on the product page, in section “Software” on the Downloads tab at the following location:įor more information please refer to the document “How to upgrade mGuard device manager” downloaded with the installer. The update can be performed by simply executing the installer for Version 1.8.0.1 on a Windows system where the product is installed in Version 1.8.0. PHOENIX CONTACT recommends that all users of the affected product on Windows should update to at least Version 1.8.0.1. Successful exploitation of these vulnerabilities could allow unauthorized remote access, modification of data, and may allow remote and local users to gain elevated privileges. The following versions of mGuard Device Manager, a device management software for mGuard devices, are affected: Vulnerabilities: Improper Access Control vulnerabilities for Oracle Java SE AFFECTED PRODUCTS ATTENTION: Remotely exploitable/low skill level to exploit.
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