A flaw was found in Keycloak in versions before 10.0.0, where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle (MITM) attack.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2107 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 7.3.8 on RHEL 7 serves as a replacement for Red Hat Single Sign-On     7.3.7, and includes bug fixes and enhancements, which are documented in the Release Notes document linked     to in the References.

    Security Fix(es):

    * keycloak: security issue on reset credential flow (CVE-2020-1718)

    * keycloak: improper verification of certificate with host mismatch could result in information disclosure     (CVE-2020-1758)

    * keycloak: problem with privacy after user logout (CVE-2020-1724)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, 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 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2108 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 7.3.8 on RHEL 8 serves as a replacement for Red Hat Single Sign-On     7.3.7, and includes bug fixes and enhancements, which are documented in the Release Notes document linked     to in the References.

    Security Fix(es):

    * keycloak: security issue on reset credential flow (CVE-2020-1718)

    * keycloak: improper verification of certificate with host mismatch could result in information disclosure     (CVE-2020-1758)

    * keycloak: problem with privacy after user logout (CVE-2020-1724)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, 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-2020:2106 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 7.3.8 on RHEL 6 serves as a replacement for Red Hat Single Sign-On     7.3.7, and includes bug fixes and enhancements, which are documented in the Release Notes document linked     to in the References.

    Security Fix(es):

    * keycloak: security issue on reset credential flow (CVE-2020-1718)

    * keycloak: improper verification of certificate with host mismatch could result in information disclosure     (CVE-2020-1758)

    * keycloak: problem with privacy after user logout (CVE-2020-1724)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, 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
136524	RHEL 7 : Red Hat Single Sign-On 7.3.8 security update on RHEL 7 (Important) (RHSA-2020:2107)	Nessus	Red Hat Local Security Checks	high
136520	RHEL 8 : Red Hat Single Sign-On 7.3.8 security update on RHEL 8 (Important) (RHSA-2020:2108)	Nessus	Red Hat Local Security Checks	high
136516	RHEL 6 : Red Hat Single Sign-On 7.3.8 security update on RHEL 6 (Important) (RHSA-2020:2106)	Nessus	Red Hat Local Security Checks	high

Detections

Analytics

CVE-2020-1758

medium

Tenable Plugins

high

high

high