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.

Project Subscriptions

Vendors Products
Rockwellautomation Subscribe
Armor Compact Guardlogix 5370 Subscribe
Armor Compact Guardlogix 5370 Firmware Subscribe
Compact Guardlogix 5370 Subscribe
Compact Guardlogix 5370 Firmware Subscribe
Compactlogix 5370 L1 Subscribe
Compactlogix 5370 L1 Firmware Subscribe
Compactlogix 5370 L2 Subscribe
Compactlogix 5370 L2 Firmware Subscribe
Compactlogix 5370 L3 Subscribe
Compactlogix 5370 L3 Firmware Subscribe
Controllogix 5570 Subscribe
Controllogix 5570 Firmware Subscribe
Guardlogix 5560 Subscribe
Guardlogix 5560 Firmware Subscribe
Guardlogix 5570 Subscribe
Guardlogix 5570 Firmware Subscribe
Guardlogix 5580 Subscribe
Guardlogix 5580 Firmware Subscribe
Advisories
Source ID Title
EUVD EUVD EUVD-2020-28138 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.
Fixes

Solution

Rockwell Automation recommends affected users apply firmware v33.011 or later. For more information see the Rockwell Automation advisory (login required).


Workaround

No workaround given by the vendor.

History

Thu, 17 Apr 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2025-04-17T15:51:02.651Z

Reserved: 2020-01-14T00:00:00.000Z

Link: CVE-2020-6998

cve-icon Vulnrichment

Updated: 2024-08-04T09:18:02.993Z

cve-icon NVD

Status : Modified

Published: 2022-07-27T21:15:08.297

Modified: 2025-04-17T16:15:21.730

Link: CVE-2020-6998

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses