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.

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.

This plugin has been deprecated as it does not adhere to established standards for this style of check.

Red Hat OpenShift Enterprise release 3.1.1 is now available with updates to packages that fix several security issues, bugs and introduce feature enhancements.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

OpenShift Enterprise by Red Hat is the company's cloud computing Platform-as-a-Service (PaaS) solution designed for on-premise or private cloud deployments.

The following security issues are addressed with this release :

An authorization flaw was discovered in Kubernetes; the API server did not properly check user permissions when handling certain requests. An authenticated remote attacker could use this flaw to gain additional access to resources such as RAM and disk space. (CVE-2016-1905)

An authorization flaw was discovered in Kubernetes; the API server did not properly check user permissions when handling certain build- configuration strategies. A remote attacker could create build configurations with strategies that violate policy. Although the attacker could not launch the build themselves (launch fails when the policy is violated), if the build configuration files were later launched by other privileged services (such as automated triggers), user privileges could be bypassed allowing attacker escalation.
(CVE-2016-1906)

An update for Jenkins Continuous Integration Server that addresses a large number of security issues including XSS, CSRF, information disclosure and code execution have been addressed as well.
(CVE-2013-2186, CVE-2014-1869, CVE-2014-3661, CVE-2014-3662 CVE-2014-3663, CVE-2014-3664, CVE-2014-3666, CVE-2014-3667 CVE-2014-3680, CVE-2014-3681, CVE-2015-1806, CVE-2015-1807 CVE-2015-1808, CVE-2015-1810, CVE-2015-1812, CVE-2015-1813 CVE-2015-1814, CVE-2015-5317, CVE-2015-5318, CVE-2015-5319 CVE-2015-5320, CVE-2015-5321, CVE-2015-5322, CVE-2015-5323 CVE-2015-5324, CVE-2015-5325, CVE-2015-5326 ,CVE-2015-7537 CVE-2015-7538, CVE-2015-7539, CVE-2015-8103)

Space precludes documenting all of the bug fixes and enhancements in this advisory. See the OpenShift Enterprise 3.1 Release Notes, which will be updated shortly for release 3.1.1, for details about these changes :

https://docs.openshift.com/enterprise/3.1/release_notes/ ose_3_1_release_notes.html

All OpenShift Enterprise 3 users are advised to upgrade to these updated packages.

Updated kubernetes packages that fix two security issues are now available for Red Hat OpenShift Enterprise 3.0.2.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

OpenShift Enterprise by Red Hat is the company's cloud computing Platform-as-a-Service (PaaS) solution designed for on-premise or private cloud deployments.

An authorization flaw was discovered in Kubernetes; the API server did not properly check user permissions when handling certain requests. An authenticated remote attacker could use this flaw to gain additional access to resources such as RAM and disk space. (CVE-2016-1905)

An authorization flaw was discovered in Kubernetes; the API server did not properly check user permissions when handling certain build configuration strategies. A remote attacker could create build configurations with strategies that violate policy. Although the attacker could not launch the build themselves (launch fails when the policy is violated), if the build configuration files were later launched by other privileged services (such as automated triggers), user privileges could be bypassed allowing attacker escalation.
(CVE-2016-1906)

All OpenShift Enterprise 3.0 users are advised to upgrade to these updated packages.

ID	Name	Product	Family	Severity
199417	RHEL 7 : kubernetes (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
195450	RHEL 7 : kubernetes_api_server (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	critical
119442	RHEL 7 : openshift (RHSA-2016:0070)	Nessus	Red Hat Local Security Checks	critical
119367	RHEL 7 : kubernetes (RHSA-2016:0351)	Nessus	Red Hat Local Security Checks	critical

Detections

Analytics

CVE-2016-1905

high

Tenable Plugins

critical

critical

critical

critical