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CVE Vulnerabilities

CVE-2023-2422

Improper Certificate Validation

Published: Oct 04, 2023 | Modified: Nov 21, 2024
CVSS 3.x
7.1
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
CVSS 2.x
RedHat/V2
RedHat/V3
5.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Ubuntu
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2023-2422
CWEhttps://cwe.mitre.org/data/definitions/295.html

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.

Weakness

The product does not validate, or incorrectly validates, a certificate.

Affected Software

NameVendorStart VersionEnd Version
KeycloakRedhat- (including)- (including)
Openshift_container_platformRedhat4.9 (including)4.9 (including)
Openshift_container_platformRedhat4.10 (including)4.10 (including)
Openshift_container_platformRedhat4.11 (including)4.11 (including)
Openshift_container_platformRedhat4.12 (including)4.12 (including)
Single_sign-onRedhat7.6 (including)7.6 (including)
Red Hat Single Sign-On 7RedHat*
Red Hat Single Sign-On 7.6 for RHEL 7RedHatrh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso*
Red Hat Single Sign-On 7.6 for RHEL 8RedHatrh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el8sso*
Red Hat Single Sign-On 7.6 for RHEL 9RedHatrh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el9sso*
RHEL-8 based Middleware ContainersRedHatrh-sso-7/sso76-openshift-rhel8:7.6-24*

Potential Mitigations

References

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