In Kubernetes versions 1.3.x, 1.4.x, 1.5.x, 1.6.x and prior to versions 1.7.14, 1.8.9 and 1.9.4 containers using a secret, configMap, projected or downwardAPI volume can trigger deletion of arbitrary files/directories from the nodes where they are running.

The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - Kubernetes api server: build config to a strategy that isn't allowed by policy (CVE-2016-1906)

  - kubernetes: Privilege escalation in the PodSecurityPolicy admission plugin (CVE-2017-1000056)

  - The API server in Kubernetes does not properly check admission control, which allows remote authenticated     users to access additional resources via a crafted patched object. (CVE-2016-1905)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

The version of Kubernetes installed on the remote host is version 1.3.x prior to 1.7.14, 1.8.x prior to 1.8.9 or 1.9.x prior to 1.9.4. It is, therefore, affected by multiple vulnerabilities.

  - An arbitrary file access vulnerability exists in containers using subpath volume mounts. An authenticated, local     attacker can exploit this to access arbitrary files or directories including the host's filesystem.
    (CVE-2017-1002101)

  - An arbitrary file deletion vulnerability exists in containers using a secret, configMap, projected or downwardAPI     volume. An unauthenticated, local attacker can exploit this to delete arbitrary files or directories from the nodes     where they are running. (CVE-2017-1002102)

- Rebase to 3.9

  - Security fix for CVE-2017-1002101 and CVE-2017-1002102

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.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:0475 advisory.

  - kubernetes: Volume security can be sidestepped with innocent emptyDir and subpath (CVE-2017-1002101)

  - kubernetes: Malicious containers can delete any file from the node (CVE-2017-1002102)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-4061 advisory.

    - Ensure that the runtime mounts RO volumes read-only [CVE-2017-1002102]
    - Update Dashboard version to v1.8.3 [CVE-2017-1002102]
    - Fix nested volume mounts for read-only API data volumes [CVE-2017-1002102]
    - Add feature gate for subpath [CVE-2017-1002101]
    - Add subpath e2e tests [CVE-2017-1002101]

Tenable has extracted the preceding description block directly from the Oracle 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
199417	RHEL 7 : kubernetes (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
124590	Kubernetes 1.3.x < 1.7.14 / 1.8.x < 1.8.9 / 1.9.x < 1.9.4 multiple vulnerabilities	Nessus	Misc.	critical
120316	Fedora 28 : origin (2018-2bfbd27a0b)	Nessus	Fedora Local Security Checks	critical
119391	RHEL 7 : Red Hat OpenShift Container Platform (RHSA-2018:0475)	Nessus	Red Hat Local Security Checks	critical
108939	Oracle Linux 7 : kubernetes (ELSA-2018-4061)	Nessus	Oracle Linux Local Security Checks	critical

Detections

Analytics

CVE-2017-1002102

medium

Tenable Plugins

critical

critical

critical

critical

critical