CVE-2019-11246

CVE-2019-11246 : Kubernetes kubectl cp uses tar inside the container to create an archive, which kubectl unpacks on the user’s machine. If the container tar is malicious, it could run code and write files to the local filesystem, limited by the user’s permissions. Affected Kubernetes versions inc...

CVE-2019-11246 kubectl cp allows symlink directory traversal

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...

kubectl path traversal vulnerability (CNVD-2019-26372)

kubectl is a command line program for running commands against a Kubernetes cluster. A path traversal vulnerability exists in kubectl. The vulnerability stems from a failure of a networked system or product to properly filter for special elements in a resource or file path. An attacker could use...

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 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...

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...

`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...