CVSS: 6.5EPSS: 0%CPEs: 5EXPL: 0CVE-2019-11246 – kubectl cp allows symlink directory traversal
https://notcve.org/view.php?id=CVE-2019-11246
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 malicious, it could run any code and output unexpected, malicious results. An attacker could use this to write files to any path on the user’s machine when kubectl cp is called, limited only by the system permissions of the local user. Kubernetes affected versions include versions prior to 1.12.9, versions prior to 1.13.6, versions prior to 1.14.2, and versions 1.1, 1.2, 1.4, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11. • https://github.com/kubernetes/kubernetes/pull/76788 https://groups.google.com/forum/#%21topic/kubernetes-security-announce/NLs2TGbfPdo https://security.netapp.com/advisory/ntap-20190919-0003 https://access.redhat.com/security/cve/CVE-2019-11246 https://bugzilla.redhat.com/show_bug.cgi?id=1721704 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE-59: Improper Link Resolution Before File Access ('Link Following') CWE-61: UNIX Symbolic Link (Symlink) Following •
CVSS: 8.1EPSS: 0%CPEs: 3EXPL: 0CVE-2019-11243
https://notcve.org/view.php?id=CVE-2019-11243
In Kubernetes v1.12.0-v1.12.4 and v1.13.0, the rest.AnonymousClientConfig() method returns a copy of the provided config, with credentials removed (bearer token, username/password, and client certificate/key data). In the affected versions, rest.AnonymousClientConfig() did not effectively clear service account credentials loaded using rest.InClusterConfig() En Kubernetes versión 1.12.0 hasta versión 1.12.4 y versión 1.13.0, el método rest.AnonymousClientConfig() retorna una copia de la configuración provista, con las credenciales removidas (token de portador, nombre de usuario/contraseña y certificado/clave del cliente). En las versiones afectadas, la función rest.AnonymousClientConfig() no limpió efectivamente las credenciales de cuenta de servicio cargadas usando la función rest.InClusterConfig(). • http://www.securityfocus.com/bid/108053 https://github.com/kubernetes/kubernetes/issues/76797 https://security.netapp.com/advisory/ntap-20190509-0002 • CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer CWE-271: Privilege Dropping / Lowering Errors •
CVSS: 5.0EPSS: 0%CPEs: 4EXPL: 0CVE-2019-11244 – kubectl creates world-writeable cached schema files
https://notcve.org/view.php?id=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 written files may be modified by other users/groups and disrupt the kubectl invocation. En Kubernetes versión 1.8.x hasta versión 1.14.x, el componente kubectl almacena en caché la información del esquema en la ubicación especificada por --cache-dir (defaulting to $HOME/.kube/http-cache), escrita con permisos world-writeable (rw-rw-rw-). Si se especifica --cache-dir y se apunta a una ubicación distinta accesible para otros usuarios o grupos, los archivos escritos pueden ser modificados por otros usuarios o grupos e interrumpir la invocación de Kubectl. A flaw was found in kubectl that leaves http-cache files with read/write permissions for any user. • http://www.securityfocus.com/bid/108064 https://access.redhat.com/errata/RHSA-2019:3942 https://access.redhat.com/errata/RHSA-2020:0020 https://access.redhat.com/errata/RHSA-2020:0074 https://github.com/kubernetes/kubernetes/issues/76676 https://security.netapp.com/advisory/ntap-20190509-0002 https://access.redhat.com/security/cve/CVE-2019-11244 https://bugzilla.redhat.com/show_bug.cgi?id=1703209 • CWE-524: Use of Cache Containing Sensitive Information CWE-732: Incorrect Permission Assignment for Critical Resource •
CVSS: 7.5EPSS: 0%CPEs: 14EXPL: 0CVE-2019-9946 – kubernetes: Incorrect rule injection in CNI portmap plugin
https://notcve.org/view.php?id=CVE-2019-9946
Cloud Native Computing Foundation (CNCF) CNI (Container Networking Interface) 0.7.4 has a network firewall misconfiguration which affects Kubernetes. The CNI 'portmap' plugin, used to setup HostPorts for CNI, inserts rules at the front of the iptables nat chains; which take precedence over the KUBE- SERVICES chain. Because of this, the HostPort/portmap rule could match incoming traffic even if there were better fitting, more specific service definition rules like NodePorts later in the chain. The issue is fixed in CNI 0.7.5 and Kubernetes 1.11.9, 1.12.7, 1.13.5, and 1.14.0. La interfaz de red del contenedor (CNI) de Cloud Native Computing Foundation (CNCF), en su versión 0.7.4, tiene una configuración incorrecta en el firewall de red que afecta a Kubernetes. • https://access.redhat.com/errata/RHBA-2019:0862 https://github.com/containernetworking/plugins/pull/269#issuecomment-477683272 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCN66VYB3XS76SYH567SO7N3I254JOCT https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGOOWAELGH3F7OXRBPH3HCNZELNLXYTW https://security.netapp.com/advisory/ntap-20190416-0002 https://access.redhat.com/security/cve/CVE-2019-9946 https://bugzilla.redhat.com/show_bug.cgi?id& • CWE-670: Always-Incorrect Control Flow Implementation CWE-841: Improper Enforcement of Behavioral Workflow •
CVSS: 6.4EPSS: 0%CPEs: 7EXPL: 1CVE-2019-1002101 – kubectl cp path traversal
https://notcve.org/view.php?id=CVE-2019-1002101
The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes creates a tar inside the container, copies it over the network, and kubectl unpacks it on the user’s machine. If the tar binary in the container is malicious, it could run any code and output unexpected, malicious results. An attacker could use this to write files to any path on the user’s machine when kubectl cp is called, limited only by the system permissions of the local user. The untar function can both create and follow symbolic links. • https://github.com/brompwnie/CVE-2019-1002101-Helpers http://www.openwall.com/lists/oss-security/2019/06/21/1 http://www.openwall.com/lists/oss-security/2019/08/05/5 http://www.securityfocus.com/bid/107652 https://access.redhat.com/errata/RHBA-2019:0619 https://access.redhat.com/errata/RHBA-2019:0620 https://access.redhat.com/errata/RHBA-2019:0636 https://access.redhat.com/security/cve/cve-2019-1002101 https://github.com/kubernetes/kubernetes/pull/75037 https:/&#x • CWE-59: Improper Link Resolution Before File Access ('Link Following') •