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.Registered users may approach their local B&R service organization in case of questions.ī&R recommends that affected users evaluate their need for the SNMP service and disable it if possible.įor more information related to this vulnerability please refer to the B&R advisory.įor additional information and support, please contact B&R service.ĬISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. AS 4.8.2 (Planned release date: ) and higherī&R reports the above-mentioned dates denoted as planned are preliminary and may be subject to change.AS 4.7.3 (Planned release date: ) and higher.AS 4.6.5 (Planned release date: ) and higher.To reduce risk from this vulnerability, the following Automation Studio versions disable the SNMP service by default in newly created AS projects: MITIGATIONSī&R reports product-technical reasons disallow the changing of SNMP credentials. Yehuda Anikster and Amir Preminger of Claroty reported this vulnerability to CISA. CRITICAL INFRASTRUCTURE SECTORS: Chemical, Critical Manufacturing, Energy.A CVSS v3 base score of 9.4 has been calculated the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H). The affected products are vulnerable to a weakness in SNMP service, which allows unauthenticated users to modify the configuration via the service.ĬVE-2019-19108 has been assigned to this vulnerability. The following versions of B&R products are affected: Successful exploitation of this vulnerability may allow a remote attacker to modify the configuration of affected devices. Equipment: Automation Studio and Automation Runtime.ATTENTION: Exploitable remotely/low skill level to exploit.