A flaw was found in the Keycloak REST API before version 8.0.0 where it would permit user access from a realm the user was not configured. An authenticated attacker with knowledge of a user id could use this flaw to access unauthorized information or to carry out further attacks.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:3046 advisory.

    Red Hat Single Sign-On 7.3 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 7.3.4 on RHEL 8 serves as a replacement for Red Hat Single Sign-On     7.3.3, and includes bug fixes and enhancements, which are documented in the Release Notes document linked     to in the References.

    Security Fix(es):

    * keycloak: cross-realm user access auth bypass (CVE-2019-14832)

    * keycloak: adapter endpoints are exposed via arbitrary URLs (CVE-2019-14820)

    * jackson-databind: polymorphic typing issue allows attacker to read arbitrary local files on the server     via crafted JSON message (CVE-2019-12814)

    * jackson-databind: default typing mishandling leading to remote code execution (CVE-2019-14379)

    * jackson-databind: polymorphic typing issue allows attacker to read arbitrary local files on the server     (CVE-2019-12086)

    * undertow: Information leak in requests for directories without trailing slashes (CVE-2019-10184)

    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-2019:3045 advisory.

    Red Hat Single Sign-On 7.3 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 7.3.4 on RHEL 7 serves as a replacement for Red Hat Single Sign-On     7.3.3, and includes bug fixes and enhancements, which are documented in the Release Notes document linked     to in the References.

    Security Fix(es):

    * keycloak: cross-realm user access auth bypass (CVE-2019-14832)

    * keycloak: adapter endpoints are exposed via arbitrary URLs (CVE-2019-14820)

    * jackson-databind: polymorphic typing issue allows attacker to read arbitrary local files on the server     via crafted JSON message (CVE-2019-12814)

    * jackson-databind: default typing mishandling leading to remote code execution (CVE-2019-14379)

    * jackson-databind: polymorphic typing issue allows attacker to read arbitrary local files on the server     (CVE-2019-12086)

    * undertow: Information leak in requests for directories without trailing slashes (CVE-2019-10184)

    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 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:3044 advisory.

    Red Hat Single Sign-On 7.3 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 7.3.4 on RHEL 6 serves as a replacement for Red Hat Single Sign-On     7.3.3, and includes bug fixes and enhancements, which are documented in the Release Notes document linked     to in the References.

    Security Fix(es):

    * keycloak: cross-realm user access auth bypass (CVE-2019-14832)

    * keycloak: adapter endpoints are exposed via arbitrary URLs (CVE-2019-14820)

    * jackson-databind: polymorphic typing issue allows attacker to read arbitrary local files on the server     via crafted JSON message (CVE-2019-12814)

    * jackson-databind: default typing mishandling leading to remote code execution (CVE-2019-14379)

    * jackson-databind: polymorphic typing issue allows attacker to read arbitrary local files on the server     (CVE-2019-12086)

    * undertow: Information leak in requests for directories without trailing slashes (CVE-2019-10184)

    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
129865	RHEL 8 : Red Hat Single Sign-On 7.3.4 security update on RHEL 8 (Important) (RHSA-2019:3046)	Nessus	Red Hat Local Security Checks	critical
129864	RHEL 7 : Red Hat Single Sign-On 7.3.4 security update on RHEL 7 (Important) (RHSA-2019:3045)	Nessus	Red Hat Local Security Checks	critical
129863	RHEL 6 : Red Hat Single Sign-On 7.3.4 security update on RHEL 6 (Important) (RHSA-2019:3044)	Nessus	Red Hat Local Security Checks	critical

Detections

Analytics

CVE-2019-14832

high

Tenable Plugins

critical

critical

critical