CVE-2020-24686 Detail

Current Description

The vulnerabilities can be exploited to cause the web visualization component of the PLC to stop and not respond, leading to genuine users losing remote visibility of the PLC state. If a user attempts to login to the PLC while this vulnerability is exploited, the PLC will show an error state and refuse connections to Automation Builder. The execution of the PLC application is not affected by this vulnerability. This issue affects ABB AC500 V2 products with onboard Ethernet.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score matches with CNA score
CNA:  Asea Brown Boveri Ltd. (ABB)
Base Score:  7.5 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: The NVD and the CNA have provided the same score. When this occurs only the CNA information is displayed, but the Acceptance Level icon for the CNA is given a checkmark to signify NVD concurrence.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://search.abb.com/library/Download.aspx?DocumentID=3ADR010645&LanguageCode=en&DocumentPartId=&Action=Launch Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-400 Uncontrolled Resource Consumption cwe source acceptance level NIST   Contributor acceptance level Asea Brown Boveri Ltd. (ABB)  

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Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-24686
NVD Published Date:
02/26/2021
NVD Last Modified:
03/05/2021
Source:
Asea Brown Boveri Ltd. (ABB)