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Vulnerabilities in Rockwell Automation Controllers

The US Cybersecurity and Infrastructure Security Agency (CISA) has published three advisories regarding vulnerabilities in Rockwell Automation controllers. Rockwell has released updates to address two of the vulnerabilities: an improper access control issue in Rockwell Automation Studio 5000 Logix Emulate and an improper input validation issue in Rockwell Automation GuardLogix and ControlLogix controllers. Rockwell has suggested mitigation for an unauthenticated stored cross-site scripting vulnerability and a clickjacking vulnerability that affect Rockwell Automation MicroLogix 1100 and 1400.


In addition to applying the update, double check that you’ve employed segmentation and monitoring to ensure only authorized devices and users can access these OT components, and don’t expose them directly to the Internet.


Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

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