CVE-2020-24683

Authentication Bypass in Symphony Plus

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The affected versions of S+ Operations (version 2.1 SP1 and earlier) used an approach for user authentication which relies on validation at the client node (client-side authentication). This is not as secure as having the server validate a client application before allowing a connection. Therefore, if the network communication or endpoints for these applications are not protected, unauthorized actors can bypass authentication and make unauthorized connections to the server application.

Las versiones afectadas de S+ Operations (versión 2.1 SP1 y anteriores) utilizaron un enfoque para la autenticación de usuarios que se basa en la comprobación en el nodo del cliente (autenticación del lado del cliente). Esto no es tan seguro como hacer que el servidor valide una aplicación cliente antes de permitir una conexión. Por lo tanto, si la comunicación de red o los endpoints para estas aplicaciones no están protegidas, los actores no autorizados pueden omitir la autenticación y llevar a cabo conexiones no autorizadas hacia la aplicación del servidor

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-08-26 CVE Reserved
2020-12-22 CVE Published
2023-09-21 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-305: Authentication Bypass by Primary Weakness
CWE-602: Client-Side Enforcement of Server-Side Security
CWE-669: Incorrect Resource Transfer Between Spheres

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://search.abb.com/library/Download.aspx?DocumentID=2PAA123980&LanguageCode=en&DocumentPartId=&Action=Launch	2021-10-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Abb Search vendor "Abb"		Symphony \+ Historian Search vendor "Abb" for product "Symphony \+ Historian"				3.0 Search vendor "Abb" for product "Symphony \+ Historian" and version "3.0"		-		Affected
Abb Search vendor "Abb"		Symphony \+ Historian Search vendor "Abb" for product "Symphony \+ Historian"				3.1 Search vendor "Abb" for product "Symphony \+ Historian" and version "3.1"		-		Affected
Abb Search vendor "Abb"		Symphony \+ Operations Search vendor "Abb" for product "Symphony \+ Operations"				1.1 Search vendor "Abb" for product "Symphony \+ Operations" and version "1.1"		-		Affected
Abb Search vendor "Abb"		Symphony \+ Operations Search vendor "Abb" for product "Symphony \+ Operations"				2.0 Search vendor "Abb" for product "Symphony \+ Operations" and version "2.0"		-		Affected
Abb Search vendor "Abb"		Symphony \+ Operations Search vendor "Abb" for product "Symphony \+ Operations"				2.1 Search vendor "Abb" for product "Symphony \+ Operations" and version "2.1"		sp1		Affected
Abb Search vendor "Abb"		Symphony \+ Operations Search vendor "Abb" for product "Symphony \+ Operations"				2.1 Search vendor "Abb" for product "Symphony \+ Operations" and version "2.1"		sp2		Affected
Abb Search vendor "Abb"		Symphony \+ Operations Search vendor "Abb" for product "Symphony \+ Operations"				3.0 Search vendor "Abb" for product "Symphony \+ Operations" and version "3.0"		-		Affected
Abb Search vendor "Abb"		Symphony \+ Operations Search vendor "Abb" for product "Symphony \+ Operations"				3.1 Search vendor "Abb" for product "Symphony \+ Operations" and version "3.1"		-		Affected
Abb Search vendor "Abb"		Symphony \+ Operations Search vendor "Abb" for product "Symphony \+ Operations"				3.2 Search vendor "Abb" for product "Symphony \+ Operations" and version "3.2"		-		Affected
Abb Search vendor "Abb"		Symphony \+ Operations Search vendor "Abb" for product "Symphony \+ Operations"				3.3 Search vendor "Abb" for product "Symphony \+ Operations" and version "3.3"		-		Affected