CVE-2019-13533: Authentication Bypass by Capture-replay

In Omron PLC CJ series, all versions, and Omron PLC CS series, all versions, an attacker could monitor traffic between the PLC and the controller and replay requests that could result in the opening and closing of industrial valves...

CVE-2019-18259: Authentication Bypass by Spoofing

In Omron PLC CJ series, all versions and Omron PLC CS series, all versions, an attacker could spoof arbitrary messages or execute commands...

CVE-2019-18261: Improper Restriction of Excessive Authentication Attempts

In Omron PLC CS series, all versions, Omron PLC CJ series, all versions, and Omron PLC NJ series, all versions, the software does not implement sufficient measures to prevent multiple failed authentication attempts within in a short time frame, making it more susceptible to brute force attacks...

Omron PLC CJ and CS Series

1. EXECUTIVE SUMMARY CVSS v3 8.6 ATTENTION : Exploitable remotely/low skill level to exploit Vendor : Omron Equipment : PLC CJ and CS Series Vulnerabilities : Authentication Bypass by Spoofing, Authentication Bypass by Capture-replay, Unrestricted Externally Accessible Lock 2. UPDATE This updated...