Bug 2191668 (CVE-2023-2422) - CVE-2023-2422 keycloak: oauth client impersonation
Summary: CVE-2023-2422 keycloak: oauth client impersonation
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2023-2422
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 2191681
TreeView+ depends on / blocked
 
Reported: 2023-04-28 17:40 UTC by Chess Hazlett
Modified: 2024-01-09 13:04 UTC (History)
10 users (show)

Fixed In Version: keycloak 18.0
Doc Type: If docs needed, set a value
Doc Text:
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.
Clone Of:
Environment:
Last Closed: 2023-06-27 23:31:56 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2023:3883 0 None None None 2023-06-27 18:49:47 UTC
Red Hat Product Errata RHSA-2023:3884 0 None None None 2023-06-27 18:49:38 UTC
Red Hat Product Errata RHSA-2023:3885 0 None None None 2023-06-27 18:49:30 UTC
Red Hat Product Errata RHSA-2023:3888 0 None None None 2023-06-27 18:49:54 UTC
Red Hat Product Errata RHSA-2023:3892 0 None None None 2023-06-27 18:53:52 UTC

Description Chess Hazlett 2023-04-28 17:40:00 UTC 
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 and therefore access data that belongs to other clients.
Comment 2 errata-xmlrpc 2023-06-27 18:49:29 UTC 
This issue has been addressed in the following products:

  Red Hat Single Sign-On 7.6 for RHEL 9

Via RHSA-2023:3885 https://access.redhat.com/errata/RHSA-2023:3885
Comment 3 errata-xmlrpc 2023-06-27 18:49:37 UTC 
This issue has been addressed in the following products:

  Red Hat Single Sign-On 7.6 for RHEL 8

Via RHSA-2023:3884 https://access.redhat.com/errata/RHSA-2023:3884
Comment 4 errata-xmlrpc 2023-06-27 18:49:45 UTC 
This issue has been addressed in the following products:

  Red Hat Single Sign-On 7.6 for RHEL 7

Via RHSA-2023:3883 https://access.redhat.com/errata/RHSA-2023:3883
Comment 5 errata-xmlrpc 2023-06-27 18:49:52 UTC 
This issue has been addressed in the following products:

  RHEL-8 based Middleware Containers

Via RHSA-2023:3888 https://access.redhat.com/errata/RHSA-2023:3888
Comment 6 errata-xmlrpc 2023-06-27 18:53:50 UTC 
This issue has been addressed in the following products:

  Red Hat Single Sign-On

Via RHSA-2023:3892 https://access.redhat.com/errata/RHSA-2023:3892
Comment 7 Product Security DevOps Team 2023-06-27 23:31:54 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2023-2422
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