The Kubelet and kube-proxy components in versions 1.1.0-1.16.10, 1.17.0-1.17.6, and 1.18.0-1.18.3 were found to contain a security issue which allows adjacent hosts to reach TCP and UDP services bound to 127.0.0.1 running on the node or in the node's network namespace. Such a service is generally thought to be reachable only by other processes on the same host, but due to this defeect, could be reachable by other hosts on the same LAN as the node, or by containers running on the same node as the service.

The remote Redhat Enterprise Linux 7 / 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2020:3183 advisory.

    Red Hat OpenShift Container Platform is Red Hat's cloud computing     Kubernetes application platform solution designed for on-premise or private     cloud deployments.

    Security Fix(es):

    * kubernetes: A flaw was found in Kubernetes that allows attackers on adjacent networks to reach services     exposed on localhost ports, previously thought to be unreachable. This flaw allows an attacker to gain     privileges or access confidential information for any services listening on localhost ports that are not     protected by authentication. (CVE-2020-8558)

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

An update of the kubernetes package has been released.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2992 advisory.

    Red Hat OpenShift Container Platform is Red Hat's cloud computing     Kubernetes application platform solution designed for on-premise or private     cloud deployments.

    Security Fix(es):

    * cri-o: A flaw was found in cri-o that can result in container management (conmon) processes being killed     if a workload process triggers an out-of-memory (OOM) condition for the cgroup. (CVE-2019-14891)

    * nodejs-minimist: Prototype pollution allows adding or modifying properties of Object.prototype using a     `constructor` or `__proto__` payload. (CVE-2020-7598)

    * kubernetes: Use of unbounded 'client' label in apiserver_request_total allows repeated, crafted HTTP     requests to exhaust available memory and cause a crash. (CVE-2020-8552)

    * kubernetes: A flaw was found in Kubernetes that allows attackers on adjacent networks to reach services     exposed on localhost ports and gain privileges or access confidential information for any services     listening on localhost ports that are not protected by authentication. (CVE-2020-8558)

    * proglottis/gpgme: A use-after-free vulnerability was found in the Go GPGME wrapper library,     github.com/proglottis/gpgme. (CVE-2020-8945)

    * openshift/console: A flaw allowed text injection on error pages with a crafted URL. (CVE-2020-10715)

    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 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2927 advisory.

    Red Hat OpenShift Container Platform is Red Hat's cloud computing     Kubernetes application platform solution designed for on-premise or private     cloud deployments.

    Security Fix(es):

    * kubernetes: node localhost services are reachable via martian packets (CVE-2020-8558)

    * proglottis/gpgme: Use-after-free in GPGME bindings during container image pull (CVE-2020-8945)

    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 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2413 advisory.

    Red Hat OpenShift Container Platform is Red Hat's cloud computing     Kubernetes application platform solution designed for on-premise or private     cloud deployments.

    Security Fix(es):

    * kubernetes: Denial of service in API server via crafted YAML payloads by authorized users     (CVE-2019-11254)

    * kubernetes: node localhost services reachable via martian packets (CVE-2020-8558)

    * proglottis/gpgme: Use-after-free in GPGME bindings during container image pull (CVE-2020-8945)

    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
170333	RHEL 7 / 8 : OpenShift Container Platform 4.3.31 openshift (RHSA-2020:3183)	Nessus	Red Hat Local Security Checks	high
139514	Photon OS 2.0: Kubernetes PHSA-2020-2.0-0270	Nessus	PhotonOS Local Security Checks	high
139512	Photon OS 3.0: Kubernetes PHSA-2020-3.0-0123	Nessus	PhotonOS Local Security Checks	high
139006	RHEL 7 : OpenShift Container Platform 3.11 (RHSA-2020:2992)	Nessus	Red Hat Local Security Checks	high
138765	RHEL 7 / 8 : OpenShift Container Platform 4.4.13 machine-config-daemon and openshift (RHSA-2020:2927)	Nessus	Red Hat Local Security Checks	high
138387	RHEL 7 / 8 : OpenShift Container Platform 4.5 (RHSA-2020:2413)	Nessus	Red Hat Local Security Checks	high

Detections

Analytics

CVE-2020-8558

high

Tenable Plugins

high

high

high

high

high

high