CVE-2018-1002105

Description

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://www.tenable.com/blog/kubernetes-privilege-escalation-vulnerability-publicly-disclosed-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/

https://groups.google.com/forum/#%21topic/kubernetes-announce/GVllWCg6L88

https://github.com/kubernetes/kubernetes/issues/71411

https://github.com/evict/poc_CVE-2018-1002105

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

http://www.openwall.com/lists/oss-security/2019/07/06/4

http://www.openwall.com/lists/oss-security/2019/07/06/3

http://www.openwall.com/lists/oss-security/2019/06/28/2

http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00041.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3