In all versions of Omron PLC CJ Series, an attacker can send a series of specific data packets within a short period, causing a service error on the PLC Ethernet module, which in turn causes a PLC service denied result.
The information has been provided by Jipeng You (XDU)
The original article can be found at https://www.us-cert.gov/ics/advisories/icsa-20-063-03
- Omron PLC CJ series, all versions
Published Date: 03/06/2020