CVE-2021-3461

keycloak: Backchannel logout not working when Principal Type is set to Attribute Name for external SAML IDP

Severity Score

7.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A flaw was found in keycloak where keycloak may fail to logout user session if the logout request comes from external SAML identity provider and Principal Type is set to Attribute [Name].

Se ha encontrado un fallo en keycloak por el que keycloak puede fallar al cerrar la sesión del usuario si la petición de cierre de sesión proviene de un proveedor de identidad SAML externo y el tipo de principal está configurado como atributo [nombre]

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-03-23 CVE Reserved
2021-05-20 CVE Published
2023-10-23 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-613: Insufficient Session Expiration

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=1941565	2021-05-20

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2021-3461	2021-05-20

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Redhat Search vendor "Redhat"		Keycloak Search vendor "Redhat" for product "Keycloak"				9.0.13 Search vendor "Redhat" for product "Keycloak" and version "9.0.13"		-		Affected
Redhat Search vendor "Redhat"		Single Sign-on Search vendor "Redhat" for product "Single Sign-on"				7.0 Search vendor "Redhat" for product "Single Sign-on" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Single Sign-on Search vendor "Redhat" for product "Single Sign-on"				7.4 Search vendor "Redhat" for product "Single Sign-on" and version "7.4"		-		Affected
Redhat Search vendor "Redhat"		Single Sign-on Search vendor "Redhat" for product "Single Sign-on"				7.4.7 Search vendor "Redhat" for product "Single Sign-on" and version "7.4.7"		-		Affected