Where
-Infinity
0
Severity
8.7
Input Validation
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

A denial-of-service vulnerability exists in the Rockwell Automation affected products when specially crafted packets are sent to the CIP Security Object. If exploited the device will become unavailable and require a factory reset to recover.

Remedy

Affected Family         First Known in Software/Firmware Version         Corrected in Software/Firmware Version         CompactLogix 5380               v.32 .011         v33.017, v34.014, v35.013, v36.011 and later         CompactLogix 5380 Process         v.33.011         v33.017, v34.014, v35.013, v36.011 and later         Compact GuardLogix 5380 SIL 2         v.32.013         v33.017, v34.014, v35.013, v36.011 and later         Compact GuardLogix 5380 SIL 3         v.32.011         v33.017, v34.014, v35.013, v36.011 and later         CompactLogix 5480         v.32.011         v33.017, v34.014, v35.013, v36.011 and later         ControlLogix® 5580         v.32.011         v33.017, v34.014, v35.013, v36.011 and later         ControlLogix® 5580 Process         v.33.011         v33.017, v34.014, v35.013, v36.011 and later         GuardLogix 5580         v.32.011         v33.017, v34.014, v35.013, v36.011 and later         1756-EN4         v2.001         v6.001 and later       Mitigations and Workarounds Customers who are unable to upgrade to the corrected software versions are encouraged to apply the following risk mitigations. * Users who do not wish to use CIP security can disable the feature per device. See "Disable CIP Security" in Chapter 2 of "CIP Security with Rockwell Automation Products" (publication SECURE-AT001) For information on how to mitigate Security Risks on industrial automation control systems, we encourage customers to implement our suggested security best practices https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight  to minimize the risk of the vulnerability. Customers can use Stakeholder-Specific Vulnerability Categorization https://www.cisa.gov/stakeholder-specific-vulnerability-categorization-ssvc  to generate more environment-specific prioritization.
First published (updated )

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