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OIDC Logout redirect in keycloak

Low severity GitHub Reviewed Published Apr 25, 2022 in keycloak/keycloak • Updated Jan 30, 2023

Package

maven org.keycloak:keycloak-oidc-client-adapter-pom (Maven)

Affected versions

< 18.0.0

Patched versions

18.0.0

Description

A flaw was found in keycloak. The OIDC logout endpoint does not have CSRF protection. The highest threat from this vulnerability is to system availability.

References

Published by the National Vulnerability Database Feb 11, 2021
@abstractj abstractj published to keycloak/keycloak Apr 25, 2022
Published to the GitHub Advisory Database Apr 28, 2022
Reviewed Apr 28, 2022
Last updated Jan 30, 2023

Severity

Low

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

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:L/UI:N/S:U/C:N/I:N/A:L

EPSS score

0.044%
(14th percentile)

Weaknesses

CVE ID

CVE-2020-10734

GHSA ID

GHSA-rvjg-gxwx-j5gf

Source code

Credits

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