Описание
Kubernetes Unsafe Cacheing
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.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2019-11244
- https://github.com/kubernetes/kubernetes/issues/76676
- https://github.com/kubernetes/kubernetes/pull/77874
- https://github.com/kubernetes/kubernetes/pull/77874/commits/f228ae3364729caed59087e23c42868454bc3ff4
- https://github.com/kubernetes/client-go/commit/790a4f63632139cf6731014d00a9a8338f1fbd7d
- 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://security.netapp.com/advisory/ntap-20190509-0002
- http://www.securityfocus.com/bid/108064
Пакеты
k8s.io/client-go
>= 1.8.0, < 1.12.9
1.12.9
Связанные уязвимости
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.
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.
In Kubernetes v1.8.x-v1.14.x, schema info is cached by kubectl in the ...
ELSA-2019-4717: kubeadm-ha-setup security update (IMPORTANT)