CVE-2023-2422

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
redhatCNA
5.5 MEDIUM
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
CISA-ADPADP
---
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CVEADP
---
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Base Score
CVSS 3.x
EPSS Score
Percentile: 44%
VendorProductVersion
redhatkeycloak
-
redhatopenshift_container_platform
4.9
redhatopenshift_container_platform
4.10
redhatopenshift_container_platform
4.11
redhatopenshift_container_platform
4.12
redhatsingle_sign-on
7.6
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
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
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