CVE-2020-6998 (GCVE-0-2020-6998)

Vulnerability from cvelistv5 – Published: 2022-07-27 20:18 – Updated: 2025-04-17 15:51
VLAI?
Summary
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.
Severity ?
5.8 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
CWE
  • CVE-22 Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
Rockwell Automation Armor Compact GuardLogix 5370 controllers Affected: unspecified , ≤ versions 33 and prior (custom)
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    Rockwell Automation Armor GuardLogix Safety Controllers Affected: unspecified , ≤ versions 33 and prior (custom)
Create a notification for this product.
    Rockwell Automation CompactLogix 5370 L1 controllers Affected: unspecified , ≤ versions 33 and prior (custom)
Create a notification for this product.
    Rockwell Automation CompactLogix 5370 L2 controllers Affected: unspecified , ≤ versions 33 and prior (custom)
Create a notification for this product.
    Rockwell Automation CompactLogix 5370 L3 controllers Affected: unspecified , ≤ versions 33 and prior (custom)
Create a notification for this product.
    Rockwell Automation Compact GuardLogix 5370 controllers Affected: unspecified , ≤ versions 33 and prior (custom)
Create a notification for this product.
    Rockwell Automation ControlLogix 5570 controllers Affected: unspecified , ≤ versions 33 and prior (custom)
Create a notification for this product.
Credits
Yeop Chang reported this vulnerability to CISA.
Show details on NVD website
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  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.