Prosys OPC UA Modbus Server 1.4.4 released
We have released a new 1.4.4 version of the Prosys OPC UA Modbus Server. This is a security release. Due to an implementation error, user authorization checks were not performed and all username & password combinations and user certificates were always granted access, if the respective authentication methods were enabled. Affected versions are 1.2.x, 1.3.x and 1.4.x (older than this release).
We recommend everyone to update to this version.
Note that while the error is critical, it does impact you only if user authorization played a role in the way you use the application. The application doesn’t have user specific data and most use cases of OPC UA typically use just Application Level Authentication with the Anonymous user authentication mode.
Prosys is a leading provider of professional OPC software and services with over 10 years of experience in the field. OPC and OPC UA (Unified Architecture) are communications standards used especially by industrial and high-tech companies.
Newest blog posts
The blog post describes step-by-step TalentLMS sign-up and course payment process
Updates to the blog post on importing Information Models from NodeSet files
Master's thesis evaluation of OPC UA protocol and information modeling for use in heavily regulated manufacturing fields