CVE-2019-11244: Incorrect Permission Assignment for Critical Resource

April 22, 2019 (updated May 9, 2019)

In Kubernetes, 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.

References

www.securityfocus.com/bid/108064
nvd.nist.gov/vuln/detail/CVE-2019-11244

Code Behaviors & Features

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