The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:3528 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 7.4.9 serves as a replacement for Red Hat Single Sign-On 7.4.8, and     includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the     References.

    Security Fix(es):

    * jackson-dataformat-cbor:  Unchecked allocation of byte buffer can cause a java.lang.OutOfMemoryError     exception (CVE-2020-28491)

    * keycloak: Brute force attack is possible even after the account lockout (CVE-2021-3513)

    * keycloak: Anyone can register a new device when there is no device registered for passwordless login     (CVE-2021-3632)

    * keycloak-model-infinispan: authenticationSessions map in RootAuthenticationSessionEntity grows     boundlessly could lead to a DoS attack (CVE-2021-3637)

    * keycloak: X509 Direct Grant Auth does not verify certificate timestamp validity (CVE-2020-35509)

    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.

Detections

Analytics

RHEL 7 : Red Hat Single Sign-On 7.4.9 security update on RHEL 7 (Moderate) (RHSA-2021:3528)

high Nessus Plugin ID 165123

Version 1.8