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FKIE_CVE-2023-2422

Vulnerability from fkie_nvd - Published: 2023-10-04 11:15 - Updated: 2026-06-17 05:52
Severity
5.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
7.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Summary
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.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:3883Vendor Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:3884Vendor Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:3885Vendor Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:3888Vendor Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:3892Vendor Advisory
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2023-2422Vendor Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2191668Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:3883Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:3884Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:3885Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:3888Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:3892Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-2422Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2191668Issue Tracking, Vendor Advisory
Impacted products
Vendor Product Version
redhat keycloak -
redhat openshift_container_platform 4.9
redhat openshift_container_platform 4.10
redhat openshift_container_platform 4.11
redhat openshift_container_platform 4.12
redhat single_sign-on 7.6
redhat enterprise_linux 7.0
redhat enterprise_linux 8.0
redhat enterprise_linux 9.0
To clipboard 

{
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    },
    {
      "lang": "es",
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    }
  ],
  "id": "CVE-2023-2422",
  "lastModified": "2026-06-17T05:52:33.157",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.