Bug 2166728 (CVE-2023-0657)

Summary:	CVE-2023-0657 keycloak: impersonation via logout token exchange
Product:	[Other] Security Response	Reporter:	Chess Hazlett <chazlett>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	boliveir, chazlett, dpalmer, drichtar, mulliken, pdrozd, peholase, pjindal, pskopek, rowaters, security-response-team, sthorger
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	rhbk 22.0.10	Doc Type:	---
Doc Text:	A flaw was found in Keycloak. This issue occurs due to improperly enforcing token types when validating signatures locally. This could allow an authenticated attacker to exchange a logout token for an access token and possibly gain access to data outside of enforced permissions.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2164604

Description Chess Hazlett 2023-02-02 18:50:09 UTC

Keycloak was found to not properly enforce token types when validating signatures locally. An authenticated attacker could use this flaw to exchange a logout token for an access token and possibly gain access to data outside of enforced permissions.

Comment 7 errata-xmlrpc 2024-04-16 20:26:22 UTC

This issue has been addressed in the following products:

  Red Hat build of Keycloak 22.0.10

Via RHSA-2024:1868 https://access.redhat.com/errata/RHSA-2024:1868

Comment 8 errata-xmlrpc 2024-04-16 20:27:04 UTC

This issue has been addressed in the following products:

  Red Hat build of Keycloak 22

Via RHSA-2024:1867 https://access.redhat.com/errata/RHSA-2024:1867