CVSS: 7.7EPSS: 1%CPEs: 15EXPL: 1CVE-2023-6563 – Keycloak: offline session token dos
https://notcve.org/view.php?id=CVE-2023-6563
14 Dec 2023 — An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens (> 500,000 users with each having at least 2 saved sessions). If an attacker creates two or more user sessions and then open the "consents" tab of the admin User Interface, the UI attempts to load a huge number of offline client sessions leading to excessive memory and CPU consumption which could potentially crash the entire system. Se descubrió una vulnerab... • https://access.redhat.com/errata/RHSA-2023:7854 • CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0CVE-2023-5379 – Undertow: ajp request closes connection exceeding maxrequestsize
https://notcve.org/view.php?id=CVE-2023-5379
12 Dec 2023 — A flaw was found in Undertow. When an AJP request is sent that exceeds the max-header-size attribute in ajp-listener, JBoss EAP is marked in an error state by mod_cluster in httpd, causing JBoss EAP to close the TCP connection without returning an AJP response. This happens because mod_proxy_cluster marks the JBoss EAP instance as an error worker when the TCP connection is closed from the backend after sending the AJP request without receiving an AJP response, and stops forwarding. This issue could allow a ... • https://access.redhat.com/errata/RHSA-2023:4509 • CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 7.8EPSS: 94%CPEs: 444EXPL: 17CVE-2023-44487 – HTTP/2 Rapid Reset Attack Vulnerability
https://notcve.org/view.php?id=CVE-2023-44487
10 Oct 2023 — The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. El protocolo HTTP/2 permite una denegación de servicio (consumo de recursos del servidor) porque la cancelación de solicitudes puede restablecer muchas transmisiones rápidamente, como se explotó en la naturaleza entre agosto y octubre de 2023. A flaw was found in handling multiplexed streams in the HTTP/2 protocol. ... • https://github.com/imabee101/CVE-2023-44487 • CWE-400: Uncontrolled Resource Consumption •
CVSS: 7.8EPSS: 6%CPEs: 18EXPL: 0CVE-2023-3223 – Undertow: outofmemoryerror due to @multipartconfig handling
https://notcve.org/view.php?id=CVE-2023-3223
08 Aug 2023 — A flaw was found in undertow. Servlets annotated with @MultipartConfig may cause an OutOfMemoryError due to large multipart content. This may allow unauthorized users to cause remote Denial of Service (DoS) attack. If the server uses fileSizeThreshold to limit the file size, it's possible to bypass the limit by setting the file name in the request to null. Se encontró una falla en el undertow. • https://access.redhat.com/errata/RHSA-2023:4505 • CWE-789: Memory Allocation with Excessive Size Value •
CVSS: 7.5EPSS: 0%CPEs: 9EXPL: 0CVE-2023-2422 – Keycloak: oauth client impersonation
https://notcve.org/view.php?id=CVE-2023-2422
28 Jun 2023 — 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 • CWE-295: Improper Certificate Validation •
CVSS: 9.4EPSS: 0%CPEs: 14EXPL: 0CVE-2023-2585 – Keycloak: client access via device auth request spoof
https://notcve.org/view.php?id=CVE-2023-2585
28 Jun 2023 — 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 val... • https://access.redhat.com/errata/RHSA-2023:3883 • CWE-358: Improperly Implemented Security Check for Standard •
CVSS: 10.0EPSS: 0%CPEs: 13EXPL: 0CVE-2022-4361 – RHSSO: XSS due to lax URI scheme validation
https://notcve.org/view.php?id=CVE-2022-4361
28 Jun 2023 — 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. Red Hat Single Sign-On is an integrated sign-on solution, available as a Red Hat JBoss Middleware for OpenShift containerized image. The Red Hat Single Sign-On for OpenShift image provides an authentication server that you can us... • https://bugzilla.redhat.com/show_bug.cgi?id=2151618 • 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: 0CVE-2023-1664 – keycloak: Untrusted Certificate Validation
https://notcve.org/view.php?id=CVE-2023-1664
26 May 2023 — 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".... • https://bugzilla.redhat.com/show_bug.cgi?id=2182196&comment#0 • CWE-295: Improper Certificate Validation •
CVSS: 7.8EPSS: 4%CPEs: 29EXPL: 0CVE-2023-1108 – Undertow: infinite loop in sslconduit during close
https://notcve.org/view.php?id=CVE-2023-1108
10 Mar 2023 — A flaw was found in undertow. This issue makes achieving a denial of service possible due to an unexpected handshake status updated in SslConduit, where the loop never terminates. Se encontró una falla en undertow. Este problema hace posible lograr una denegación de servicio debido a un estado de protocolo de enlace inesperado actualizado en SslConduit, donde el bucle nunca termina Red Hat Single Sign-On is an integrated sign-on solution, available as a Red Hat JBoss Middleware for OpenShift containerized i... • https://access.redhat.com/errata/RHSA-2023:1184 • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 8.1EPSS: 0%CPEs: 5EXPL: 0CVE-2022-4137 – Keycloak: reflected xss attack
https://notcve.org/view.php?id=CVE-2022-4137
02 Mar 2023 — A reflected cross-site scripting (XSS) vulnerability was found in the 'oob' OAuth endpoint due to incorrect null-byte handling. This issue allows a malicious link to insert an arbitrary URI into a Keycloak error page. This flaw requires a user or administrator to interact with a link in order to be vulnerable. This may compromise user details, allowing it to be changed or collected by an attacker. Se encontró una vulnerabilidad reflejada de scross-site scripting (XSS) en el endpoint de OAuth 'oob' debido a ... • https://access.redhat.com/errata/RHSA-2023:1043 • 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 •