CVE-2020-6998

CVSS V2 None CVSS V3 High 8.6
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.
Overview
  • CVE ID
  • CVE-2020-6998
  • Assigner
  • ics-cert@hq.dhs.gov
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-07-27T21:15:08
  • Last Modified Date
  • 2022-08-04T02:39:44
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:rockwellautomation:armor_compact_guardlogix_5370_firmware:*:*:*:*:*:*:*:* 1 OR 33
cpe:2.3:h:rockwellautomation:armor_compact_guardlogix_5370:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:rockwellautomation:compact_guardlogix_5370_firmware:*:*:*:*:*:*:*:* 1 OR 33
cpe:2.3:h:rockwellautomation:compact_guardlogix_5370:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:rockwellautomation:compactlogix_5370_l1_firmware:*:*:*:*:*:*:*:* 1 OR 33
cpe:2.3:h:rockwellautomation:compactlogix_5370_l1:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:rockwellautomation:compactlogix_5370_l2_firmware:*:*:*:*:*:*:*:* 1 OR 33
cpe:2.3:h:rockwellautomation:compactlogix_5370_l2:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:rockwellautomation:compactlogix_5370_l3_firmware:*:*:*:*:*:*:*:* 1 OR 33
cpe:2.3:h:rockwellautomation:compactlogix_5370_l3:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:rockwellautomation:controllogix_5570_firmware:*:*:*:*:*:*:*:* 1 OR 33
cpe:2.3:h:rockwellautomation:controllogix_5570:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:rockwellautomation:guardlogix_5560_firmware:*:*:*:*:*:*:*:* 1 OR 33
cpe:2.3:h:rockwellautomation:guardlogix_5560:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:rockwellautomation:guardlogix_5570_firmware:*:*:*:*:*:*:*:* 1 OR 33
cpe:2.3:h:rockwellautomation:guardlogix_5570:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:rockwellautomation:guardlogix_5580_firmware:*:*:*:*:*:*:*:* 1 OR 33
cpe:2.3:h:rockwellautomation:guardlogix_5580:-:*:*:*:*:*:*:* 0 OR
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 8.6
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 4
References
Reference URL Reference Tags
https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1130398
https://www.cisa.gov/uscert/ics/advisories/icsa-21-061-02
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-6998
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6998
History
Created Old Value New Value Data Type Notes
2022-07-27 22:00:45 Added to TrackCVE