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Keycloak insufficient session expiration

High severity GitHub Reviewed Published Apr 3, 2022 to the GitHub Advisory Database • Updated Jul 11, 2023

Package

maven org.keycloak:keycloak-parent (Maven)

Affected versions

< 14.0.0

Patched versions

14.0.0

Description

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].

References

Published by the National Vulnerability Database Apr 1, 2022
Published to the GitHub Advisory Database Apr 3, 2022
Reviewed Jul 11, 2023
Last updated Jul 11, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

EPSS score

0.062%
(28th percentile)

Weaknesses

CVE ID

CVE-2021-3461

GHSA ID

GHSA-cm29-6wx7-p874

Source code

No known source code
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