7.1

CVE-2023-2422

Keycloak: oauth client impersonation

Improper Client Certificate Validation for OAuth/OpenID clients

A flaw was found in Keycloak. A Keycloak server configured to support mTLS authentication for OAuth/OpenID clients does not properly verify the client certificate chain. A client that possesses a proper certificate can authorize itself as any other client, therefore, access data that belongs to other clients.
Mögliche Gegenmaßnahme
Keycloak Server: Install latest version
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Redhat ≫ Keycloak Version-
   Redhat ≫ Enterprise Linux Version7.0
   Redhat ≫ Enterprise Linux Version8.0
   Redhat ≫ Enterprise Linux Version9.0
Redhat ≫ Openshift Container Platform Version4.9
   Redhat ≫ Enterprise Linux Version7.0
   Redhat ≫ Enterprise Linux Version8.0
   Redhat ≫ Enterprise Linux Version9.0
Redhat ≫ Openshift Container Platform Version4.10
   Redhat ≫ Enterprise Linux Version7.0
   Redhat ≫ Enterprise Linux Version8.0
   Redhat ≫ Enterprise Linux Version9.0
Redhat ≫ Openshift Container Platform Version4.11
   Redhat ≫ Enterprise Linux Version7.0
   Redhat ≫ Enterprise Linux Version8.0
   Redhat ≫ Enterprise Linux Version9.0
Redhat ≫ Openshift Container Platform Version4.12
   Redhat ≫ Enterprise Linux Version7.0
   Redhat ≫ Enterprise Linux Version8.0
   Redhat ≫ Enterprise Linux Version9.0
Redhat ≫ Single Sign-on Version7.6
   Redhat ≫ Enterprise Linux Version7.0
   Redhat ≫ Enterprise Linux Version8.0
   Redhat ≫ Enterprise Linux Version9.0
Weitere Schwachstelleninformationen
SystemKeycloak
≫
Produkt Keycloak Server
Version < 21.1.2
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.32% 0.553
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.1 2.8 4.2
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
secalert@redhat.com 5.5 1.2 4.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
CWE-295 Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.