A flaw was found in Keycloak before 13.0.0, where it is possible to force the server to call out an unverified URL using the OIDC parameter request_uri. This flaw allows an attacker to use this parameter to execute a Server-side request forgery (SSRF) attack.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:0320 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 7.4.5 on RHEL 8 serves as a replacement for Red Hat Single Sign-On     7.4.4, and includes bug fixes and enhancements, which are documented in the Release Notes document linked     to in the References.

    Security Fix(es):

    * keycloak: Default Client configuration is vulnerable to SSRF using request_uri parameter     (CVE-2020-10770)

    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 this issue 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 a vulnerability as referenced in the RHSA-2021:0319 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 7.4.5 on RHEL 7 serves as a replacement for Red Hat Single Sign-On     7.4.4, and includes bug fixes and enhancements, which are documented in the Release Notes document linked     to in the References.

    Security Fix(es):

    * keycloak: Default Client configuration is vulnerable to SSRF using request_uri parameter     (CVE-2020-10770)

    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 this issue 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 a vulnerability as referenced in the RHSA-2021:0318 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 7.4.5 on RHEL 6 serves as a replacement for Red Hat Single Sign-On     7.4.4, and includes bug fixes and enhancements, which are documented in the Release Notes document linked     to in the References.

    Security Fix(es):

    * keycloak: Default Client configuration is vulnerable to SSRF using request_uri parameter     (CVE-2020-10770)

    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 this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
145789	RHEL 8 : Red Hat Single Sign-On 7.4.5 security update on RHEL 8 (Moderate) (RHSA-2021:0320)	Nessus	Red Hat Local Security Checks	medium
145788	RHEL 7 : Red Hat Single Sign-On 7.4.5 security update on RHEL 7 (Moderate) (RHSA-2021:0319)	Nessus	Red Hat Local Security Checks	medium
145786	RHEL 6 : Red Hat Single Sign-On 7.4.5 security update on RHEL 6 (Moderate) (RHSA-2021:0318)	Nessus	Red Hat Local Security Checks	medium

Detections

Analytics

CVE-2020-10770

medium

Tenable Plugins

medium

medium

medium