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CVE-2023-6544

Keycloak: authorization bypass

Published: Apr 25, 2024Updated: Nov 21, 2024 Sources: CVE List NVD GHSA BDUCWE-625
NVD MITRE
5.4CVSSMEDIUM
EPSS Score
1.1%
Top 39.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A flaw was found in the Keycloak package. This issue occurs due to a permissive regular expression hardcoded for filtering which allows hosts to register a dynamic client. A malicious user with enough information about the environment could jeopardize an environment with this specific Dynamic Client Registration and TrustedDomain configuration previously unauthorized.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-625

Affected Products

Red Hat Single Sign-OnRed Hat Inc.
On-prem
Operating Systems / linux-distro
Red Hat Build of KeycloakRed Hat Inc.
On-prem
Operating Systems / linux-distro
Red Hat build of Keycloak 22Red Hat
On-prem
Operating Systems / linux-distro
Red Hat build of Keycloak 22.0.10Red Hat
On-prem
Operating Systems / linux-distro
red hat inc.commercialUSOperating Systemsaka red hat
red hatcommercialUSOperating Systemsaka red hat
and 6 more affected products View all →

Exploitability

Official Patch Available
Workaround Available

References

https://access.redhat.com/errata/RHSA-2024:1860
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:1861
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:1862
access.redhat.com
and 19 more references View all →

Timeline

Published
Apr 25, 2024
Last Updated
Nov 21, 2024

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