Keycloak: path transversal in redirection validation

8.1 CVSS

Vulnerability Description

A flaw was found in Keycloak, where it does not properly validate URLs included in a redirect. This issue could allow an attacker to construct a malicious request to bypass validation and access other URLs and sensitive information within the domain or conduct further attacks. This flaw affects any client that utilizes a wildcard in the Valid Redirect URIs field, and requires user interaction within the malicious URL.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Red Hat would like to thank Axel Flamcourt for reporting this issue.

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Affected Vendor

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Affected Software

Migration Toolkit for Runtimes 1 on RHEL 8, MTA-6.2-RHEL-9, Red Hat AMQ Broker 7, Red Hat build of Keycloak 22, Red Hat build of Keycloak 22.0.10, Red Hat Single Sign-On 7.6 for RHEL 7, Red Hat Single Sign-On 7.6 for RHEL 8, Red Hat Single Sign-On 7.6 for RHEL 9, RHEL-8 based Middleware Containers, RHSSO 7.6.8, Red Hat build of Apicurio Registry 2, Red Hat build of Quarkus, Red Hat Data Grid 8, Red Hat Decision Manager 7, Red Hat Fuse 7, Red Hat JBoss Data Grid 7, Red Hat JBoss Enterprise Application Platform 6, Red Hat JBoss Enterprise Application Platform 7, Red Hat Process Automation 7

Vulnerable Versions:

21.1.0, 23.0.0, 1.2-23, 1.2-15, 1.2-16, 1.2-14, 6.2.3-2, 22.0.10-1, 22-13, 22-16, 0:18.0.13-1.redhat_00001.1.el7sso, 0:18.0.13-1.redhat_00001.1.el8sso, 0:18.0.13-1.redhat_00001.1.el9sso, 7.6-46