A flaw was found in Keycloak before version 12.0.0, where it is possible to add unsafe schemes for the redirect_uri parameter. This flaw allows an attacker to perform a Cross-site scripting attack.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - A flaw was found in Keycloak before version 12.0.0, where it is possible to add unsafe schemes for the
    redirect_uri parameter. This flaw allows an attacker to perform a Cross-site scripting attack.
    (CVE-2020-10776)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4932 advisory.

    Red Hat Single Sign-On 7.4 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 7.4.3 security update on RHEL 8 serves as a replacement for Red Hat     Single Sign-On 7.4.2, and includes bug fixes and enhancements, which are documented in the Release Notes     document linked to in the References.

    Security Fix(es):

    * keycloak: user can manage resources with just view-profile role using new Account Console     (CVE-2020-14389)

    * keycloak: OIDC redirect_uri allows dangerous schemes resulting in potential XSS (CVE-2020-10776)

    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-2020:4929 advisory.

    Red Hat Single Sign-On 7.4 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 7.4.3 security update on RHEL 6 serves as a replacement for Red Hat     Single Sign-On 7.4.2, and includes bug fixes and enhancements, which are documented in the Release Notes     document linked to in the References.

    Security Fix(es):

    * keycloak: user can manage resources with just view-profile role using new Account Console     (CVE-2020-14389)

    * keycloak: OIDC redirect_uri allows dangerous schemes resulting in potential XSS (CVE-2020-10776)

    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-2020:4930 advisory.

    Red Hat Single Sign-On 7.4 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 7.4.3 security update on RHEL 7 serves as a replacement for Red Hat     Single Sign-On 7.4.2, and includes bug fixes and enhancements, which are documented in the Release Notes     document linked to in the References.

    Security Fix(es):

    * keycloak: user can manage resources with just view-profile role using new Account Console     (CVE-2020-14389)

    * keycloak: OIDC redirect_uri allows dangerous schemes resulting in potential XSS (CVE-2020-10776)

    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
410039	SCA: security update for org.keycloak:keycloak-server-spi-private, org.keycloak:keycloak-services (GHSA-484q-784p-8m5h)	Tenable Cloud Security	SCA Checks	medium
410039	SCA: security update for org.keycloak:keycloak-server-spi-private, org.keycloak:keycloak-services (GHSA-484q-784p-8m5h)	Tenable Self-Hosted Container Security	SCA Checks	medium
142463	RHEL 8 : Red Hat Single Sign-On 7.4.3 security update on RHEL 8 (Moderate) (RHSA-2020:4932)	Nessus	Red Hat Local Security Checks	high
142461	RHEL 6 : Red Hat Single Sign-On 7.4.3 security update on RHEL 6 (Moderate) (RHSA-2020:4929)	Nessus	Red Hat Local Security Checks	high
142460	RHEL 7 : Red Hat Single Sign-On 7.4.3 security update on RHEL 7 (Moderate) (RHSA-2020:4930)	Nessus	Red Hat Local Security Checks	high

Detections

Analytics

CVE-2020-10776

medium

Tenable Plugins

medium

medium

high

high

high