A flaw was found in Quarkus where HTTP security policies are not sanitizing certain character permutations correctly when accepting requests, resulting in incorrect evaluation of permissions. This issue could allow an attacker to bypass the security policy altogether, resulting in unauthorized endpoint access and possibly a denial of service.

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

  - A flaw was found in Quarkus where HTTP security policies are not sanitizing certain character permutations
    correctly when accepting requests, resulting in incorrect evaluation of permissions. This issue could
    allow an attacker to bypass the security policy altogether, resulting in unauthorized endpoint access and
    possibly a denial of service. (CVE-2023-4853)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2023:5479 advisory.

    Red Hat OpenShift Serverless Client kn 1.30.1 provides a CLI to interact with Red Hat OpenShift Serverless     1.30.1. The kn CLI is delivered as an RPM package for installation on RHEL platforms, and as binaries for     non-Linux platforms.

    This release includes security and bug fixes, and enhancements.

    Security Fix(es):

    * quarkus: HTTP security policy bypass (CVE-2023-4853)

    For further information about CVE-2023-4853, see the Red Hat Security Bulletin linked to in the References     section.

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgements, 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
410121	SCA: security update for io.quarkus:quarkus-csrf-reactive, io.quarkus:quarkus-keycloak-authorization, io.quarkus:quarkus-undertow, io.quarkus:quarkus-vertx-http (GHSA-4f4r-wgv2-jjvg)	Tenable Cloud Security	SCA Checks	high
410121	SCA: security update for io.quarkus:quarkus-csrf-reactive, io.quarkus:quarkus-keycloak-authorization, io.quarkus:quarkus-undertow, io.quarkus:quarkus-vertx-http (GHSA-4f4r-wgv2-jjvg)	Tenable Self-Hosted Container Security	SCA Checks	high
194349	RHEL 8 : Release of OpenShift Serverless Client kn 1.30.1 (RHSA-2023:5479)	Nessus	Red Hat Local Security Checks	high

Detections

Analytics

CVE-2023-4853

high

Tenable Plugins

high

high

high