CVE-2023-6544

Summary

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 malicious user with enough information about the environment could jeopardize an environment with this specific Dynamic Client Registration and TrustedDomain configuration previously unauthorized.

Affected Software

VendorProductVersion RangeStatus
22.0.0 < 22.0.10affected
23.0.0 < 24.0.3affected
Red HatRed Hat build of Keycloak 2222.0.10-1 < *unaffected
Red HatRed Hat build of Keycloak 2222-13 < *unaffected
Red HatRed Hat build of Keycloak 2222-16 < *unaffected
Red HatRed Hat Single Sign-On 7.6 for RHEL 70:18.0.13-1.redhat_00001.1.el7sso < *unaffected
Red HatRed Hat Single Sign-On 7.6 for RHEL 80:18.0.13-1.redhat_00001.1.el8sso < *unaffected
Red HatRed Hat Single Sign-On 7.6 for RHEL 90:18.0.13-1.redhat_00001.1.el9sso < *unaffected
Red HatRHEL-8 based Middleware Containers7.6-46 < *unaffected

Weaknesses

  • CWE-625: Permissive Regular Expression

Workarounds

No mitigation is currently available for this flaw.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References