New: Option to use BIT data type for Input and Holding Registers.
#Java modbus server 64 Bit
New data types include 8 bit and 64 bit integers (SINT, USINT, LINT, ULINT), 64 bit floating-point decimal (LREAL) and character strings encoded in ISO 8859-1 and UTF-16 (CHAR, WCHAR) New: Extended support for different IEC 61131-3 data types. New: Possibility to import and export device-specific variable configurations from/to a CSV file through the Configuration Mode UI
#Java modbus server serial
New: Support for Modbus serial protocol (ASCII and RTU) If for some reasons it won’t work on your distro, let us know, but you can chmod the exec bits as a workaround. zip option uncompressed retaining exec bits on start scripts on Linux, which was the only reason keeping tar.gz. Not recommended for public networks.Ĭhanged: Removed portable tar.gz option, based on our latest tests the. They are considered to be non-secure by OPC UA 1.04, but can be enabled in the Endpoints view if needed. sh script (like our Browser/SimulationServer/Monitor have).Ĭhanged: MessageSecurityMode None is no longer enabled by default (unless migrated from old configuration file).Ĭhanged: SecurityPolicies Basic128Rsa15 and Basic256 are no longer enabled by default (unless migrated from old configuration file). New: Added support for reverse connections.įixed/Changed: Transport protocol opc.https disabled by default.įixed: UI could freeze if "Open Certificate in OS viewer" option was used on Linux.įixed: Application’s own Certificates can now be opened in the Certificates view.įixed: Selecting serial port based Modbus Device did freeze the application if run in portable mode.Ĭhanged: Linux installer is now a. New: Docker Image as distribution option. Uses Prosys OPC UA SDK for Java version 4.5.2:
NOTE! for the "portable install" and docker distributions, there could be more impact if the user running the application differs from the one unzipping the distribution and/or if that user has higher privileges on the system. Thus, this CVE in practice has no impact, but we still do recommend to update just in case. Thus the created configuration files at the first startup are admin-owned, thus there is nothing to escalate to, the attacker could just do already everything they could do via Modbus Server in a more complicated way. Typically this kind of vulnerability could be used for a privilege escalation attack, but Modbus Server for better or worse requires admin priviledges to run. In general our applications do not expect a hostile (local) environment.
So the filesystem would have to be compromised for this to happen. For the CVE-2021-44832, per apache’s page: "(previous versions) are vulnerable to a remote code execution (RCE) attack where an attacker with permission to modify the logging configuration file".
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