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.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2023-6544US | — | — | ||
A flaw was found in the Keycloak package. This issue occurs due to a permissive regular expression hardcoded for filtering which allows hosts to register a dynamic client. A malici… | ||||
02
references
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2024:1860WEB
- https://access.redhat.com/errata/RHSA-2024:1861WEB
- https://access.redhat.com/errata/RHSA-2024:1862WEB
- https://access.redhat.com/errata/RHSA-2024:1864WEB
- https://access.redhat.com/errata/RHSA-2024:1866WEB
- https://access.redhat.com/errata/RHSA-2024:1867WEB
- https://access.redhat.com/errata/RHSA-2024:1868WEB
- https://access.redhat.com/security/cve/CVE-2023-6544WEB
scry
Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.
Free scan