CVE-2023-2422: falha de média gravidade em Red Hat Single Sign-On 7
Keycloak: oauth client impersonation
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13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 5.5epss 0.5%
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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Produtos afetados
Red Hat · Red Hat Single Sign-On 7Red Hat · Red Hat Single Sign-On 7.6 for RHEL 7Red Hat · Red Hat Single Sign-On 7.6 for RHEL 8Red Hat · Red Hat Single Sign-On 7.6 for RHEL 9Red Hat · RHEL-8 based Middleware ContainersCVEs relacionadas — Red Hat Single Sign-On 7
No mesmo produto, das mais perigosas para as menos.
CVE-2026-18963CRITICALKeycloak-services: keycloak-services: unauthenticated account takeover via reset-credentials flow bypassEPSS 4.7%CVE-2024-1635HIGHUndertow: out-of-memory error after several closed connections with wildfly-http-client protocolEPSS 4.6%CVE-2023-5685HIGHXnio: stackoverflowexception when the chain of notifier states becomes problematically bigEPSS 3.5%CVE-2024-3656HIGHKeycloak: unguarded admin rest api endpoints allows low privilege users to use administrative functionalitiesEPSS 3.3%CVE-2024-5971HIGHUndertow: response write hangs in case of java 17 tlsv1.3 newsessionticketEPSS 2.9%CVE-2026-76166MEDIUMModcluster-core: mod_cluster advertise listener: unauthenticated dos via crafted multicast datagramEPSS 2.7%
Referências
https://access.redhat.com/errata/RHSA-2023:3883https://access.redhat.com/errata/RHSA-2023:3884https://access.redhat.com/errata/RHSA-2023:3885https://access.redhat.com/errata/RHSA-2023:3888https://access.redhat.com/errata/RHSA-2023:3892https://access.redhat.com/security/cve/CVE-2023-2422https://bugzilla.redhat.com/show_bug.cgi?id=2191668