Error Handling Affecting kubeadm package, versions <0:1.9.11-2.1.1.el7
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Test your applications- Snyk ID SNYK-ORACLE7-KUBEADM-2532742
- published 10 Apr 2022
- disclosed 5 Dec 2018
Introduced: 5 Dec 2018
CVE-2018-1002105 Open this link in a new tabHow to fix?
Upgrade Oracle:7 kubeadm to version 0:1.9.11-2.1.1.el7 or higher.
This issue was patched in ELSA-2018-4303.
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.
In all Kubernetes versions prior to v1.10.11, v1.11.5, and v1.12.3, incorrect handling of error responses to proxied upgrade requests in the kube-apiserver allowed specially crafted requests to establish a connection through the Kubernetes API server to backend servers, then send arbitrary requests over the same connection directly to the backend, authenticated with the Kubernetes API server's TLS credentials used to establish the backend connection.
References
- https://linux.oracle.com/cve/CVE-2018-1002105.html
- https://linux.oracle.com/errata/ELSA-2018-4303.html
- https://groups.google.com/forum/#!topic/kubernetes-announce/GVllWCg6L88
- https://github.com/kubernetes/kubernetes/issues/71411
- https://access.redhat.com/errata/RHSA-2018:3754
- https://access.redhat.com/errata/RHSA-2018:3752
- https://access.redhat.com/errata/RHSA-2018:3742
- https://access.redhat.com/errata/RHSA-2018:3624
- https://access.redhat.com/errata/RHSA-2018:3598
- https://access.redhat.com/errata/RHSA-2018:3551
- https://access.redhat.com/errata/RHSA-2018:3549
- https://access.redhat.com/errata/RHSA-2018:3537
- http://www.securityfocus.com/bid/106068
- https://github.com/evict/poc_CVE-2018-1002105
- https://www.exploit-db.com/exploits/46053/
- https://www.exploit-db.com/exploits/46052/
- https://www.coalfire.com/The-Coalfire-Blog/December-2018/Kubernetes-Vulnerability-What-You-Can-Should-Do
- https://security.netapp.com/advisory/ntap-20190416-0001/
- http://www.openwall.com/lists/oss-security/2019/06/28/2
- http://www.openwall.com/lists/oss-security/2019/07/06/3
- http://www.openwall.com/lists/oss-security/2019/07/06/4
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00041.html
- https://groups.google.com/forum/#%21topic/kubernetes-announce/GVllWCg6L88
- https://www.exploit-db.com/exploits/46053