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Keycloak's admin API allows low privilege users to use administrative functions

High severity GitHub Reviewed Published Jun 11, 2024 in keycloak/keycloak • Updated Oct 10, 2024

Package

maven org.keycloak:keycloak-services (Maven)

Affected versions

< 24.0.5

Patched versions

24.0.5

Description

Users with low privileges (just plain users in the realm) are able to utilize administrative functionalities within Keycloak admin interface. This issue presents a significant security risk as it allows unauthorized users to perform actions reserved for administrators, potentially leading to data breaches or system compromise.

Acknowledgements:
Special thanks to Maurizio Agazzini for reporting this issue and helping us improve our project.

References

@rmartinc rmartinc published to keycloak/keycloak Jun 11, 2024
Published to the GitHub Advisory Database Jun 11, 2024
Reviewed Jun 11, 2024
Published by the National Vulnerability Database Oct 9, 2024
Last updated Oct 10, 2024

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS score

0.779%
(82nd percentile)

Weaknesses

CVE ID

CVE-2024-3656

GHSA ID

GHSA-2cww-fgmg-4jqc

Source code

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