Description
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.
Published: 2022-07-27
Score: 5.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

Vendor Solution

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

Tracking

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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.
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'}


Subscriptions

Rockwellautomation Armor Compact Guardlogix 5370 Armor Compact Guardlogix 5370 Firmware Compact Guardlogix 5370 Compact Guardlogix 5370 Firmware Compactlogix 5370 L1 Compactlogix 5370 L1 Firmware Compactlogix 5370 L2 Compactlogix 5370 L2 Firmware Compactlogix 5370 L3 Compactlogix 5370 L3 Firmware Controllogix 5570 Controllogix 5570 Firmware Guardlogix 5560 Guardlogix 5560 Firmware Guardlogix 5570 Guardlogix 5570 Firmware Guardlogix 5580 Guardlogix 5580 Firmware
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