Link Following Affecting kubeadm package, versions <0:1.12.7-1.1.2.el7
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Test your applications- Snyk ID SNYK-ORACLE7-KUBEADM-2545860
- published 10 Apr 2022
- disclosed 1 Apr 2019
Introduced: 1 Apr 2019
CVE-2019-1002101 Open this link in a new tabHow to fix?
Upgrade Oracle:7 kubeadm to version 0:1.12.7-1.1.2.el7 or higher.
This issue was patched in ELSA-2019-4593.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kubeadm package and not the kubeadm package as distributed by Oracle.
See How to fix? for Oracle:7 relevant fixed versions and status.
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. The issue is resolved in kubectl v1.11.9, v1.12.7, v1.13.5, and v1.14.0.
References
- https://linux.oracle.com/cve/CVE-2019-1002101.html
- https://linux.oracle.com/errata/ELSA-2019-4593.html
- https://github.com/kubernetes/kubernetes/pull/75037
- http://www.securityfocus.com/bid/107652
- https://access.redhat.com/security/cve/cve-2019-1002101
- https://access.redhat.com/errata/RHBA-2019:0620
- https://access.redhat.com/errata/RHBA-2019:0619
- https://access.redhat.com/errata/RHBA-2019:0636
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BPV2RE5RMOGUVP5WJMXKQJZUBBLAFZPZ/
- http://www.openwall.com/lists/oss-security/2019/06/21/1
- http://www.openwall.com/lists/oss-security/2019/08/05/5
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QZB7E3DOZ5WDG46XAIU6K32CXHXPXB2F/
- https://www.twistlock.com/labs-blog/disclosing-directory-traversal-vulnerability-kubernetes-copy-cve-2019-1002101/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BPV2RE5RMOGUVP5WJMXKQJZUBBLAFZPZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QZB7E3DOZ5WDG46XAIU6K32CXHXPXB2F/