The connection establishment algorithm found in Rockwell Automation CompactLogix 5370 and ControlLogix 5570 versions 33 and prior does not sufficiently manage its control flow during execution, creating an infinite loop. This may allow an attacker to send specially crafted CIP packet requests to a controller, which may cause denial-of-service conditions in communications with other products.
Solution:
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
| Link | Tags |
|---|---|
| https://www.cisa.gov/uscert/ics/advisories/icsa-21-061-02 | third party advisory us government resource |
| https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1130398 | permissions required vendor advisory |