When performing an online tag generation to devices which communicate
using the ControlLogix protocol, a machine-in-the-middle, or a device
that is not configured correctly, could deliver a response leading to
unrestricted or unregulated resource allocation. This could cause a
denial-of-service condition and crash the Kepware application. By
default, these functions are turned off, yet they remain accessible for
users who recognize and require their advantages.
Credits
Sharon Brizinov and Vera Mens of Claroty Research - Team82 reported this vulnerability to PTC.
