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Security Advisories: GSA_kwCzR0hTQS00NmM4LTYzNXYtNjhyMs4AA7I4

Keycloak Authorization Bypass vulnerability

Due to a permissive regular expression hardcoded for filtering allowed hosts to register a dynamic client, a malicious user with enough information about the environment could benefit and jeopardize an environment with this specific Dynamic Client Registration with TrustedDomain configuration previously unauthorized.

Acknowledgements:

Special thanks to Bastian Kanbach for reporting this issue and helping us improve our security.

Permalink: https://github.com/advisories/GHSA-46c8-635v-68r2
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS00NmM4LTYzNXYtNjhyMs4AA7I4
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: 16 days ago
Updated: 8 days ago


CVSS Score: 5.4
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Identifiers: GHSA-46c8-635v-68r2, CVE-2023-6544
References: Repository: https://github.com/keycloak/keycloak
Blast Radius: 14.8

Affected Packages

maven:org.keycloak:keycloak-services
Dependent packages: 90
Dependent repositories: 561
Downloads:
Affected Version Ranges: >= 23.0.0, < 24.0.3, < 22.0.10
Fixed in: 24.0.3, 22.0.10
All affected versions: 5.0.0, 6.0.0, 6.0.1, 7.0.0, 7.0.1, 8.0.0, 8.0.1, 8.0.2, 9.0.0, 9.0.2, 9.0.3, 10.0.0, 10.0.1, 10.0.2, 11.0.0, 11.0.1, 11.0.2, 11.0.3, 12.0.0, 12.0.1, 12.0.2, 12.0.3, 12.0.4, 13.0.0, 13.0.1, 14.0.0, 15.0.0, 15.0.1, 15.0.2, 15.1.0, 15.1.1, 16.0.0, 16.1.0, 16.1.1, 17.0.0, 17.0.1, 18.0.0, 18.0.1, 18.0.2, 19.0.0, 19.0.1, 19.0.2, 19.0.3, 20.0.0, 20.0.1, 20.0.2, 20.0.3, 20.0.4, 20.0.5, 21.0.0, 21.0.1, 21.0.2, 21.1.0, 21.1.1, 21.1.2, 22.0.0, 22.0.1, 22.0.2, 22.0.3, 22.0.4, 22.0.5, 23.0.0, 23.0.1, 23.0.2, 23.0.3, 23.0.4, 23.0.5, 23.0.6, 23.0.7, 24.0.0, 24.0.1, 24.0.2
All unaffected versions: 24.0.3