Improper validation of URL redirection in the Kubernetes API server in versions prior to v1.14.0 allows an attacker-controlled Kubelet to redirect API server requests from streaming endpoints to arbitrary hosts. Impacted API servers will follow the redirect as a GET request with client-certificate credentials for authenticating to the Kubelet.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Improper validation of URL redirection in the Kubernetes API server in versions prior to v1.14.0 allows an     attacker-controlled Kubelet to redirect API server requests from streaming endpoints to arbitrary hosts.
    Impacted API servers will follow the redirect as a GET request with client-certificate credentials for     authenticating to the Kubelet. (CVE-2018-1002102)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:5363 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: compromised node could escalate to cluster level privileges (CVE-2020-8559)

    * kubernetes: improper validation of URL redirection in the Kubernetes API server allows an attacker-     controlled Kubelet to redirect API server requests from streaming endpoints (CVE-2018-1002102)

    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.

    This advisory contains the RPM packages for Red Hat OpenShift Container     Platform 3.11.346. See the following advisory for the container images for this release:

    https://access.redhat.com/errata/RHBA-2020:5362

    All OpenShift Container Platform 3.11 users are advised to upgrade to these     updated packages and images.

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.

Update to v1.15.7 (CVE-2018-1002102 kubernetes: improper validation of URL redirection in the Kubernetes API server allows an attacker-controlled Kubelet to redirect API server requests from streaming endpoints)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
254504	Linux Distros Unpatched Vulnerability : CVE-2018-1002102	Nessus	Misc.	low
144410	RHEL 7 : OpenShift Container Platform 3.11.346 (RHSA-2020:5363)	Nessus	Red Hat Local Security Checks	medium
132790	Fedora 31 : kubernetes (2020-943f4b03d2)	Nessus	Fedora Local Security Checks	low

Detections

Analytics

CVE-2018-1002102

low

Tenable Plugins

low

medium

low