A Stored Cross-site scripting (XSS) vulnerability was found in keycloak as shipped in Red Hat Single Sign-On 7. This flaw allows a privileged attacker to execute malicious scripts in the admin console, abusing the default roles functionality.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:6783 advisory.

    Red Hat Single Sign-On 7.5 is a standalone server, based on the Keycloak project, that provides     authentication and standards-based single sign-on capabilities for web and mobile applications.

    This release of Red Hat Single Sign-On 7.5.3 on RHEL 8 serves as a replacement for Red Hat Single Sign-On     7.5.2, and includes bug fixes and enhancements, which are documented in the Release Notes document linked     to in the References.

    Security Fix(es):

    * jackson-databind: denial of service via a large depth of nested objects (CVE-2020-36518)

    * wildfly: Wildfly management of EJB Session context returns wrong caller principal with Elytron Security     enabled (CVE-2022-0866)

    * xnio: org.xnio.StreamConnection.notifyReadClosed log to debug instead of stderr (CVE-2022-0084)

    * netty: control chars in header names may lead to HTTP request smuggling (CVE-2021-43797)

    * keycloak-saml-core: keycloak: Uploading of SAML javascript protocol mapper scripts through the admin     (CVE-2022-2668)

    * keycloak: Stored XSS in groups dropdown (CVE-2022-0225)

    * h2: Remote Code Execution in Console (CVE-2021-42392)

    * keycloak-core: keycloak: improper input validation permits script injection (CVE-2022-2256)

    For more details about the security issue(s), including the impact, a CVSS score, and other related     information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:6782 advisory.

    Red Hat Single Sign-On 7.5 is a standalone server, based on the Keycloak project, that provides     authentication and standards-based single sign-on capabilities for web and mobile applications.

    This release of Red Hat Single Sign-On 7.5.3 on RHEL 7 serves as a replacement for Red Hat Single Sign-On     7.5.2, and includes bug fixes and enhancements, which are documented in the Release Notes document linked     to in the References.

    Security Fix(es):

    * jackson-databind: denial of service via a large depth of nested objects (CVE-2020-36518)

    * wildfly: Wildfly management of EJB Session context returns wrong caller principal with Elytron Security     enabled (CVE-2022-0866)

    * xnio: org.xnio.StreamConnection.notifyReadClosed log to debug instead of stderr (CVE-2022-0084)

    * netty: control chars in header names may lead to HTTP request smuggling (CVE-2021-43797)

    * keycloak-saml-core: keycloak: Uploading of SAML javascript protocol mapper scripts through the admin     (CVE-2022-2668)

    * keycloak: Stored XSS in groups dropdown (CVE-2022-0225)

    * h2: Remote Code Execution in Console (CVE-2021-42392)

    * keycloak-core: keycloak: improper input validation permits script injection (CVE-2022-2256)

    For more details about the security issue(s), including the impact, a CVSS score, and other related     information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
165673	RHEL 8 : Red Hat Single Sign-On 7.5.3 security update on RHEL 8 (Moderate) (RHSA-2022:6783)	Nessus	Red Hat Local Security Checks	critical
165657	RHEL 7 : Red Hat Single Sign-On 7.5.3 security update on RHEL 7 (Moderate) (RHSA-2022:6782)	Nessus	Red Hat Local Security Checks	critical

Detections

Analytics

CVE-2022-2256

low

Tenable Plugins

critical

critical