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CVSS: 5.0EPSS: 0%CPEs: 14EXPL: 1

A flaw was found in Keycloaks OpenID Connect user authentication, which may incorrectly authenticate requests. An authenticated attacker who could obtain information from a user request within the same realm could use that data to impersonate the victim and generate new session tokens. This issue could impact confidentiality, integrity, and availability. Se ha encontrado un fallo en la autenticación de usuarios en OpenID Connect de Keycloak, que podría autenticar incorrectamente las solicitudes. Un atacante autenticado que pudiera obtener información de una solicitud de usuario dentro del mismo entorno, podría utilizar esos datos para hacerse pasar por la víctima y generar nuevos tokens de sesión. • https://github.com/twwd/CVE-2023-0264 https://access.redhat.com/security/cve/CVE-2023-0264 https://bugzilla.redhat.com/show_bug.cgi?id=2160585 • CWE-287: Improper Authentication CWE-303: Incorrect Implementation of Authentication Algorithm •

CVSS: 7.1EPSS: 0%CPEs: 9EXPL: 0

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. Se encontró una falla en Keycloak. Un servidor Keycloak configurado para admitir la autenticación mTLS para clientes OAuth/OpenID no verifica correctamente la cadena de certificados del cliente. • https://access.redhat.com/errata/RHSA-2023:3883 https://access.redhat.com/errata/RHSA-2023:3884 https://access.redhat.com/errata/RHSA-2023:3885 https://access.redhat.com/errata/RHSA-2023:3888 https://access.redhat.com/errata/RHSA-2023:3892 https://access.redhat.com/security/cve/CVE-2023-2422 https://bugzilla.redhat.com/show_bug.cgi?id=2191668 • CWE-295: Improper Certificate Validation •

CVSS: 8.1EPSS: 0%CPEs: 14EXPL: 0

Keycloak's device authorization grant does not correctly validate the device code and client ID. An attacker client could abuse the missing validation to spoof a client consent request and trick an authorization admin into granting consent to a malicious OAuth client or possible unauthorized access to an existing OAuth client. La concesión de autorización del dispositivo de Keycloak no valida correctamente el código del dispositivo y la identificación del cliente. Un cliente atacante podría abusar de la validación faltante para falsificar una solicitud de consentimiento del cliente y engañar a un administrador de autorización para que otorgue el consentimiento a un cliente OAuth malicioso o un posible acceso no autorizado a un cliente OAuth existente. • https://access.redhat.com/errata/RHSA-2023:3883 https://access.redhat.com/errata/RHSA-2023:3884 https://access.redhat.com/errata/RHSA-2023:3885 https://access.redhat.com/errata/RHSA-2023:3888 https://access.redhat.com/errata/RHSA-2023:3892 https://access.redhat.com/security/cve/CVE-2023-2585 https://bugzilla.redhat.com/show_bug.cgi?id=2196335 • CWE-358: Improperly Implemented Security Check for Standard •

CVSS: 10.0EPSS: 0%CPEs: 13EXPL: 0

Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the SAML or OIDC providers. The vulnerability can allow an attacker to execute malicious scripts by setting the AssertionConsumerServiceURL value or the redirect_uri. • https://bugzilla.redhat.com/show_bug.cgi?id=2151618 https://github.com/keycloak/keycloak/commit/a1cfe6e24e5b34792699a00b8b4a8016a5929e3a https://access.redhat.com/security/cve/CVE-2022-4361 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE-81: Improper Neutralization of Script in an Error Message Web Page •

CVSS: 6.5EPSS: 0%CPEs: 5EXPL: 0

A flaw was found in Keycloak. This flaw depends on a non-default configuration "Revalidate Client Certificate" to be enabled and the reverse proxy is not validating the certificate before Keycloak. Using this method an attacker may choose the certificate which will be validated by the server. If this happens and the KC_SPI_TRUSTSTORE_FILE_FILE variable is missing/misconfigured, any trustfile may be accepted with the logging information of "Cannot validate client certificate trust: Truststore not available". This may not impact availability as the attacker would have no access to the server, but consumer applications Integrity or Confidentiality may be impacted considering a possible access to them. • https://bugzilla.redhat.com/show_bug.cgi?id=2182196&comment#0 https://access.redhat.com/security/cve/CVE-2023-1664 https://bugzilla.redhat.com/show_bug.cgi?id=2182196 • CWE-295: Improper Certificate Validation •