CVE-2018-1002105
First published: Thu Nov 08 2018(Updated: )
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.
Credit: jordan@liggitt.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kubernetes | <1.10.11 | 1.10.11 |
| redhat/kubernetes | <1.11.5 | 1.11.5 |
| redhat/kubernetes | <1.12.3 | 1.12.3 |
| redhat/kubernetes | <1.13.0 | 1.13.0 |
| Kubernetes Dashboard | >=1.0.0<=1.9.11 | |
| Kubernetes Dashboard | >=1.10.0<=1.10.10 | |
| Kubernetes Dashboard | >=1.11.0<=1.11.4 | |
| Kubernetes Dashboard | >=1.12.0<=1.12.2 | |
| Kubernetes Dashboard | =1.9.12-beta0 | |
| Red Hat OpenShift Container Platform | =3.2 | |
| Red Hat OpenShift Container Platform | =3.3 | |
| Red Hat OpenShift Container Platform | =3.4 | |
| Red Hat OpenShift Container Platform | =3.5 | |
| Red Hat OpenShift Container Platform | =3.6 | |
| Red Hat OpenShift Container Platform | =3.8 | |
| Red Hat OpenShift Container Platform | =3.10 | |
| Red Hat OpenShift Container Platform | =3.11 | |
| NetApp Astra Trident Autosupport |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00041.html
- 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://www.securityfocus.com/bid/106068
- https://access.redhat.com/errata/RHSA-2018:3537
- https://access.redhat.com/errata/RHSA-2018:3549
- https://access.redhat.com/errata/RHSA-2018:3551
- https://access.redhat.com/errata/RHSA-2018:3598
- https://access.redhat.com/errata/RHSA-2018:3624
- https://access.redhat.com/errata/RHSA-2018:3742
- https://access.redhat.com/errata/RHSA-2018:3752
- https://access.redhat.com/errata/RHSA-2018:3754
- https://github.com/evict/poc_CVE-2018-1002105
- https://github.com/kubernetes/kubernetes/issues/71411
- https://groups.google.com/forum/#!topic/kubernetes-announce/GVllWCg6L88
- https://security.netapp.com/advisory/ntap-20190416-0001/
- https://www.coalfire.com/The-Coalfire-Blog/December-2018/Kubernetes-Vulnerability-What-You-Can-Should-Do
- https://www.exploit-db.com/exploits/46052/
- https://www.exploit-db.com/exploits/46053/
- https://github.com/kubernetes/apimachinery/commit/b5d13f078af116d09ad9c323357497a0e9f623fc
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1655686
- https://access.redhat.com/errata/RHSA-2018:2908
- https://access.redhat.com/errata/RHSA-2018:2906
- https://access.redhat.com/security/vulnerabilities/3716411
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1656650
- https://bugzilla.redhat.com/show_bug.cgi?id=1648138
- https://groups.google.com/forum/#%21topic/kubernetes-announce/GVllWCg6L88
Frequently Asked Questions
What is the severity of CVE-2018-1002105?
CVE-2018-1002105 has a high severity level due to its potential to allow unauthorized access to backend servers.
How do I fix CVE-2018-1002105?
To fix CVE-2018-1002105, upgrade Kubernetes to versions 1.10.11, 1.11.5, 1.12.3, or higher.
Which Kubernetes versions are affected by CVE-2018-1002105?
Kubernetes versions prior to 1.10.11, 1.11.5, and 1.12.3 are affected by CVE-2018-1002105.
What kind of vulnerability is CVE-2018-1002105?
CVE-2018-1002105 is a vulnerability related to incorrect handling of error responses in the kube-apiserver.
Can CVE-2018-1002105 lead to data breaches?
Yes, CVE-2018-1002105 can potentially lead to data breaches by allowing arbitrary requests to backend servers.
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