Riskcovery

CVE-2020-6998

Rockwell Automation CompactLogix 5370 and ControlLogix 5570 Controllers Improper Input Validation

State
Published
Severity
5.8 Medium
Published
Jul 27, 2022
Updated
Apr 17, 2025
Reserved
Jan 14, 2020

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.15.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Licscert

Weaknesses

  • CWE-20 Improper Input Validation

Affected Products

ProductVersions
Armor Compact GuardLogix 5370 controllersRockwell Automation
  • versions 33 and prior and earlierAffected
Armor GuardLogix Safety ControllersRockwell Automation
  • versions 33 and prior and earlierAffected
CompactLogix 5370 L1 controllersRockwell Automation
  • versions 33 and prior and earlierAffected
CompactLogix 5370 L2 controllersRockwell Automation
  • versions 33 and prior and earlierAffected
CompactLogix 5370 L3 controllersRockwell Automation
  • versions 33 and prior and earlierAffected
Compact GuardLogix 5370 controllersRockwell Automation
  • versions 33 and prior and earlierAffected
ControlLogix 5570 controllersRockwell Automation
  • versions 33 and prior and earlierAffected

References

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