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 subpath volume mounts with any volume type (including non-privileged pods, subject to file permissions) can access files/directories outside of the volume, including the host's filesystem.

This update introduces kubernetes version 1.14.1 and cri-o 1.17.1 to Leap 15.1.

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)

Update to 1.10.1

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.

- 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.

Description of changes:

[1.9.1-2.1.5]
- Production built 1.9.1-2.1.5
- Fix the upgrade version check
- Remove w/a from [Orabug 27125915]

[1.9.1-2.1.4.dev]
- Make sure worker node upgrade properly
- [Orabug 27649898]

[1.9.1-2.1.3.dev]
- 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]
- Fixed kubeadm-setup.sh and kubeadm-registry.sh
- Add feature gate for subpath [CVE-2017-1002101]
- Add subpath e2e tests [CVE-2017-1002101]
- Lock subPath volumes [CVE-2017-1002101]

ID	Name	Product	Family	Severity
136011	openSUSE Security Update : kubernetes (openSUSE-2020-554) (Dirty COW)	Nessus	SuSE 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
120652	Fedora 28 : kubernetes (2018-9b965c4eed)	Nessus	Fedora Local Security Checks	critical
120316	Fedora 28 : origin (2018-2bfbd27a0b)	Nessus	Fedora Local Security Checks	medium
119391	RHEL 7 : Red Hat OpenShift Container Platform (RHSA-2018:0475)	Nessus	Red Hat Local Security Checks	critical
109704	Fedora 27 : kubernetes (2018-16c8fdf9b8)	Nessus	Fedora Local Security Checks	critical
108939	Oracle Linux 7 : kubernetes (ELSA-2018-4061)	Nessus	Oracle Linux Local Security Checks	critical

Detections

Analytics

CVE-2017-1002101

critical

Tenable Plugins

critical

critical

critical

medium

critical

critical

critical