Executive Summary

Informations
Name CVE-2021-22779 First vendor Publication 2021-07-14
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Overall CVSS Score 9.1
Base Score 9.1 Environmental Score 9.1
impact SubScore 5.2 Temporal Score 9.1
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:N)
Cvss Base Score 6.4 Attack Range Network
Cvss Impact Score 4.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Authentication Bypass by Spoofing vulnerability exists in EcoStruxure Control Expert (all versions prior to V15.0 SP1, including all versions of Unity Pro), EcoStruxure Control Expert V15.0 SP1, EcoStruxure Process Expert (all versions, including all versions of EcoStruxure Hybrid DCS), SCADAPack RemoteConnect for x70 (all versions), Modicon M580 CPU (all versions - part numbers BMEP* and BMEH*), Modicon M340 CPU (all versions - part numbers BMXP34*), that could cause unauthorized access in read and write mode to the controller by spoofing the Modbus communication between the engineering software and the controller.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22779

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-290 Authentication Bypass by Spoofing

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 4
Application 1
Application 1

Sources (Detail)

http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-194-01
Source Url

Alert History

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Date Informations
2025-01-17 13:32:37
  • Multiple Updates
2024-11-28 13:52:44
  • Multiple Updates
2022-02-01 01:49:15
  • Multiple Updates
2021-09-24 01:43:56
  • Multiple Updates
2021-09-23 12:43:29
  • Multiple Updates
2021-07-26 21:23:12
  • Multiple Updates
2021-07-20 01:41:31
  • Multiple Updates
2021-07-20 01:40:34
  • Multiple Updates
2021-07-19 17:22:49
  • Multiple Updates
2021-07-14 21:23:07
  • First insertion