CVE-2023-6134

Keycloak: reflected xss via wildcard in oidc redirect_uri

CVSS 4.6 MEDIUMEPSS 0.9%CWE-79

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 4.6EPSS 0.9%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

14 Dec 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

A flaw was found in Keycloak that prevents certain schemes in redirects, but permits them if a wildcard is appended to the token. This issue could allow an attacker to submit a specially crafted request leading to cross-site scripting (XSS) or further attacks. This flaw is the result of an incomplete fix for CVE-2020-10748.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Affected products

Red Hat · Red Hat build of Keycloak 22 Red Hat · Red Hat build of Keycloak 22.0.7 Red Hat · Red Hat Single Sign-On 7 Red Hat · Red Hat Single Sign-On 7.6 for RHEL 7 Red Hat · Red Hat Single Sign-On 7.6 for RHEL 8 Red Hat · Red Hat Single Sign-On 7.6 for RHEL 9 Red Hat · RHEL-8 based Middleware Containers Red Hat · Single Sign-On 7.6.6

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References