CVE-2020-5425

User Impersonation possible in Tanzu SSO

Severity Score

7.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Single Sign-On for Vmware Tanzu all versions prior to 1.11.3 ,1.12.x versions prior to 1.12.4 and 1.13.x prior to 1.13.1 are vulnerable to user impersonation attack.If two users are logged in to the SSO operator dashboard at the same time, with the same username, from two different identity providers, one can acquire the token of the other and thus operate with their permissions. Note: Foundation may be vulnerable only if: 1) The system zone is set up to use a SAML identity provider 2) There are internal users that have the same username as users in the external SAML provider 3) Those duplicate-named users have the scope to access the SSO operator dashboard 4) The vulnerability doesn't appear with LDAP because of chained authentication.

Single Sign-On para Vmware Tanzu todas las versiones anteriores a 1.11.3, versiones 1.12.x anteriores a 1.12.4 y versiones 1.13.x anteriores a 1.13.1, son vulnerables a un ataque de suplantación de identidad del usuario. Si dos usuarios inician sesión en el panel del operador SSO al mismo tiempo, con el mismo nombre de usuario, de dos proveedores de identidad diferentes, uno puede adquirir el token del otro y así operar con sus permisos. Nota: Foundation puede ser vulnerable solo si: 1) La zona del sistema está configurada para usar un proveedor de identidad SAML 2) Existen usuarios internos que tienen el mismo nombre de usuario que los usuarios del proveedor SAML externo 3) Esos usuarios con nombre duplicado tienen el alcance para acceder al panel del operador SSO 4) La vulnerabilidad no aparece con LDAP debido a la autenticación encadenada

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-03 CVE Reserved
2020-10-31 CVE Published
2023-03-08 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tanzu.vmware.com/security/cve-2020-5425	2020-11-17

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Vmware Search vendor "Vmware"		Single Sign-on For Tanzu Search vendor "Vmware" for product "Single Sign-on For Tanzu"				< 1.11.3 Search vendor "Vmware" for product "Single Sign-on For Tanzu" and version " < 1.11.3"		-		Affected
Vmware Search vendor "Vmware"		Single Sign-on For Tanzu Search vendor "Vmware" for product "Single Sign-on For Tanzu"				>= 1.12.0 < 1.12.4 Search vendor "Vmware" for product "Single Sign-on For Tanzu" and version " >= 1.12.0 < 1.12.4"		-		Affected
Vmware Search vendor "Vmware"		Single Sign-on For Tanzu Search vendor "Vmware" for product "Single Sign-on For Tanzu"				>= 1.13.0 < 1.13.1 Search vendor "Vmware" for product "Single Sign-on For Tanzu" and version " >= 1.13.0 < 1.13.1"		-		Affected