Incomplete fixes for CVE-2019-1002101 and CVE-2019-11246, kubectl cp potential directory traversal

CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N A third issue was discovered with the Kubernetes kubectl cp command that could enable a directory traversal such that a malicious container could replace or create files on a user’s workstation. The vulnerability is a client-side defect and requires us...

kubernetes: Incomplete fix for CVE-2019-1002101 allows for arbitrary file write via `kubectl cp`

The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes runs tar inside the container to create a tar archive, copies it over the network, and kubectl unpacks it on the user’s machine. If the tar binary in the container is...

Security Bulletin: In IBM Cloud Private on OpenShift icp-scc SecurityContextContraints is erroneously assigned to all pods in all namespaces

Summary In IBM Cloud Private on OpenShift icp-scc SecurityContextContraints is erroneously assigned to all pods in all namespaces Vulnerability Details CVEID: CVE-2019-4415 DESCRIPTION: IBM Cloud Private could allow a local user to obtain elevated privileges due to improper security context...

Security Bulletin: A Security Vulnerability affects IBM Cloud Private - Kubernetes (CVE-2019-11246)

Summary A Security Vulnerability affects IBM Cloud Private - Kubernetes CVE-2019-11246 Vulnerability Details CVEID: CVE-2019-11246 DESCRIPTION: Kubernetes could allow a remote attacker to traverse directories on the system. By persuading a victim to use the kubectl cp command with a malicious...

Security Bulletin: IBM Event Streams is affected by kubectl vulnerabilities

Summary IBM Event Streams has addressed the following vulnerabilities in the kubectl versions shipped. Vulnerability Details CVEID: CVE-2019-1002101 DESCRIPTION: Kubernetes could allow a remote attacker to traverse directories on the system, caused by the improper handling of symlinks. By...

RHEL 7 : Red Hat OpenShift Container Platform 3.11 atomic-openshift (RHSA-2019:1633)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2019:1633 advisory. Red Hat OpenShift Container Platform is the company's cloud computing Platform-as-a-Service PaaS solution designed for on-premise or private cloud...

kubernetes: Incomplete fix for CVE-2019-1002101 allows for arbitrary file write via `kubectl cp`

The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes runs tar inside the container to create a tar archive, copies it over the network, and kubectl unpacks it on the user’s machine. If the tar binary in the container is...

Directory Traversal

github.com/kubernetes/kubernetes is vulnerable to directory traversal. The vulnerability exists in the untarAll function due to improper handling of symlinks which allows a remote attacker to replace files on a users workstation using kubectl cp command...

Design/Logic Flaw

In Kubernetes v1.8.x-v1.14.x, schema info is cached by kubectl in the location specified by --cache-dir defaulting to $HOME/.kube/http-cache, written with world-writeable permissions rw-rw-rw-. If --cache-dir is specified and pointed at a different location accessible to other users/groups, the...

CVE-2019-11244

In Kubernetes v1.8.x-v1.14.x, schema info is cached by kubectl in the location specified by --cache-dir defaulting to $HOME/.kube/http-cache, written with world-writeable permissions rw-rw-rw-. If --cache-dir is specified and pointed at a different location accessible to other users/groups, the...

CVE-2019-11244

In Kubernetes v1.8.x-v1.14.x, schema info is cached by kubectl in the location specified by --cache-dir defaulting to $HOME/.kube/http-cache, written with world-writeable permissions rw-rw-rw-. If --cache-dir is specified and pointed at a different location accessible to other users/groups, the...

CVE-2019-11244

CVE-2019-11244 affects Kubernetes kubectl caching: in Kubernetes v1.8.x–v1.14.x, schema info is cached in a world-writable directory by default at --cache-dir (often $HOME/.kube/http-cache). If the cache-dir is accessible to other users, files may be modified and disrupt kubectl invocation. Publi...

CVE-2019-11244 kubectl creates world-writeable cached schema files

In Kubernetes v1.8.x-v1.14.x, schema info is cached by kubectl in the location specified by --cache-dir defaulting to $HOME/.kube/http-cache, written with world-writeable permissions rw-rw-rw-. If --cache-dir is specified and pointed at a different location accessible to other users/groups, the...

CVE-2019-11244

In Kubernetes v1.8.x-v1.14.x, schema info is cached by kubectl in the location specified by --cache-dir defaulting to $HOME/.kube/http-cache, written with world-writeable permissions rw-rw-rw-. If --cache-dir is specified and pointed at a different location accessible to other users/groups, the...

PT-2019-12210

Name of the Vulnerable Software and Affected Versions Kubernetes versions 1.8.x through 1.14.x Description The issue concerns the caching of schema information by kubectl, which is written with world-writeable permissions. If the cache directory is specified and located in a place accessible to...

CVE-2019-11244: Use of Cache Containing Sensitive Information

In Kubernetes v1.8.x-v1.14.x, schema info is cached by kubectl in the location specified by --cache-dir defaulting to $HOME/.kube/http-cache, written with world-writeable permissions rw-rw-rw-. If --cache-dir is specified and pointed at a different location accessible to other users/groups, the...

`kubectl --http-cache=<world-accessible dir>` creates world-writeable cached schema files

In kubectl v1.8.0+, schema info is cached in the location specified by --cache-dir defaulting to $HOME/.kube/http-cache, written with world-writeable permissions rw-rw-rw-. If --cache-dir is specified and pointed at a different location accessible to other users/groups, the written files may be...

kubernetes: Mishandling of symlinks allows for arbitrary file write via `kubectl cp`

A flaw was found in Kubernetes via the mishandling of symlinks when copying files from a running container. An attacker could exploit this by convincing a user to use kubectl cp or oc cp with a malicious container, allowing for arbitrary files to be overwritten on the host machine...

Exploit for Link Following in Kubernetes

kubectlcpCVE-2019-1002101 PoC helper scripts and Dockerfile...

kubectl path traversal vulnerability

kubectl is a command line program for running commands against a Kubernetes cluster. A path traversal vulnerability exists in kubectl that stems from a failure of a networked system or product to properly filter special elements in the path of a resource or file, which can be exploited by an...