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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Kubernetes | Kubernetes | v1.0.x, v1.1.x, v1.2.x, v1.3.x, v1.4.x, v1.5.x, v1.6.x, v1.7.x, v1.8.x, v1.9.x, unspecified – < v1.10.11, unspecified – < v1.11.5, unspecified – < v1.12.3 | v1.10.11 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | kubernetes | 1.17.4-1 | — |
| Debian 13 | kubernetes | 1.17.4-1 | — |
| Debian 12 | kubernetes | 1.17.4-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenShift 3 | atomic-enterprise-service-catalog +1 | 1:3.10.72-1.git.1450.7d3f435.el7 | RHSA-2018:3549 |
| Red Hat OpenShift 3 | atomic-openshift +12 | 3.2.1.34-2.git.20.6367d5d.el7 | RHSA-2018:3754, RHSA-2018:3752, RHSA-2018:3742 |
| Red Hat OpenShift 3 | atomic-openshift-descheduler | 3.10.72-1.git.299.953c1c8.el7 | RHSA-2018:3549 |
| Red Hat OpenShift 3 | atomic-openshift-hyperkube +1 | 3.10.72-1.git.0.3cb2fdc.el7 | RHSA-2018:3549, RHSA-2018:3537 |
| Red Hat OpenShift 3 | atomic-openshift-node-problem-detector | 3.10.72-1.git.252.fa9e8ae.el7 | RHSA-2018:3549 |
| Red Hat OpenShift 3 | atomic-openshift-service-catalog +2 | 3.6.173.0.140-1.git.0.9686d52.el7 | RHSA-2018:3598, RHSA-2018:3551, RHSA-2018:2908 |
| Red Hat OpenShift 3 | atomic-openshift-template-service-broker | 3.7.72-1.git.0.925b9cd.el7 | RHSA-2018:3551, RHSA-2018:3549, RHSA-2018:3537 |
| Red Hat OpenShift 3 | atomic-openshift-web-console | 3.10.72-1.git.395.d23c438.el7 | RHSA-2018:3549 |
| Red Hat OpenShift 3 | cockpit +1 | 160-3.el7 | RHSA-2018:3624 |
| Red Hat OpenShift 3 | jenkins-2-plugins | 3.11.1539805268-1.el7 | RHSA-2018:3537 |
| Red Hat OpenShift 3 | kibana | 5.6.12-1.el7 | RHSA-2018:3537 |
| Red Hat OpenShift 3 | openshift-ansible +7 | 3.3.149-1.git.0.3859ddb.el7 | RHSA-2018:3754, RHSA-2018:3752, RHSA-2018:3624 |
| Red Hat OpenShift 3 | openshift-enterprise-cluster-capacity | 3.10.72-1.git.380.0fd53e8.el7 | RHSA-2018:3549 |
| Red Hat OpenShift 3 | openshift-monitor-project-lifecycle | 3.10.72-1.git.59.5358725.el7 | RHSA-2018:3549 |
| Red Hat OpenShift 3 | openshift-monitor-sample-app | 3.10.72-1.git.5.de405bc.el7 | RHSA-2018:3549 |
| Red Hat OpenShift 3 | prometheus-node-exporter +1 | 3.10.72-1.git.1060.64daa26.el7 | RHSA-2018:3549 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | cri-o | 1.17.1-lp151.2.2 | openSUSE-SU-2020:0554-1 |
| openSUSE Leap 15.1 | cri-tools | 1.18.0-lp151.2.1 | openSUSE-SU-2020:0554-1 |
| openSUSE Leap 15.1 | go1.14 | 1.14-lp151.6.1 | openSUSE-SU-2020:0554-1 |
| openSUSE Leap 15.1 | kubernetes | 1.18.0-lp151.5.1 | openSUSE-SU-2020:0554-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | kubeadm +2 | 1.9.11-2.1.1.el7 | ELSA-2018-4303 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 2
- Kubernetes - (Unauthenticated) Arbitrary Requests EDB-46052 · remote · Dec 10, 2018
- Kubernetes - (Authenticated) Arbitrary Requests EDB-46053 · remote · Dec 10, 2018
GitHub 5 repositories
-
evict/poc_CVE-2018-1002105 ★ 223 · Dec 6, 2018
PoC for CVE-2018-1002105.
-
gravitational/cve-2018-1002105 ★ 191 · Dec 5, 2018
Test utility for cve-2018-1002105
-
imlzw/Kubernetes-1.12.3-all-auto-install ★ 4 · Dec 10, 2018
个人整理的Centos7.x + Kubernetes-1.12.3 + Dashboard-1.8.3 无 CVE-2018-1002105 漏洞的master节点全自动快速一键安装部署文件，适用于测试环境，生产环境的快速安装部署
-
sh-ubh/CVE-2018-1002105 ★ 1 · Apr 6, 2022
-
bgeesaman/cve-2018-1002105 ★ 1 · Apr 30, 2019
PoC command injection example for cve-2018-1002105 based off https://github.com/gravitational/cve-2018-1002105
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/kubernetes/kubernetes | < 1.10.11 | 1.10.11 | GHSA-579h-mv94-g4gp |
| Go | github.com/kubernetes/kubernetes | >= 1.11.0, < 1.11.5 | 1.11.5 | GHSA-579h-mv94-g4gp |
| Go | github.com/kubernetes/kubernetes | >= 1.12.0, < 1.12.3 | 1.12.3 | GHSA-579h-mv94-g4gp |
| Go | github.com/kubernetes/kubernetes | < 1.10.11 · >= 1.11.0, < 1.11.5 · >= 1.12.0, < 1.12.3 | 1.10.11, 1.11.5, 1.12.3 | GO-2022-0792 |
Advisories 13
- RHSA-2018:3537 Red Hat Security Advisory: OpenShift Container Platform 3.11 security update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- RHSA-2018:3754 Red Hat Security Advisory: OpenShift Container Platform 3.3 security update Red Hat Security Advisories (RHSA) · Aug 15, 2026
- RHSA-2018:3752 Red Hat Security Advisory: OpenShift Container Platform 3.4 security update Red Hat Security Advisories (RHSA) · Aug 15, 2026
- RHSA-2018:3742 Red Hat Security Advisory: OpenShift Container Platform 3.2 security update Red Hat Security Advisories (RHSA) · Aug 15, 2026
- RHSA-2018:3624 Red Hat Security Advisory: OpenShift Container Platform 3.5 security update Red Hat Security Advisories (RHSA) · Aug 15, 2026
- RHSA-2018:3598 Red Hat Security Advisory: OpenShift Container Platform 3.6 security update Red Hat Security Advisories (RHSA) · Aug 15, 2026
- RHSA-2018:3549 Red Hat Security Advisory: OpenShift Container Platform 3.10 security update Red Hat Security Advisories (RHSA) · Aug 15, 2026
- RHSA-2018:3551 Red Hat Security Advisory: OpenShift Container Platform 3.8 security update Red Hat Security Advisories (RHSA) · Aug 15, 2026
- RHSA-2018:2908 Red Hat Security Advisory: OpenShift Container Platform 3.9 security update Red Hat Security Advisories (RHSA) · Aug 15, 2026
- RHSA-2018:2906 Red Hat Security Advisory: OpenShift Container Platform 3.7 security update Red Hat Security Advisories (RHSA) · Aug 15, 2026
- WID-SEC-2022-0510 IBM DB2: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 18, 2026
- openSUSE-SU-2020:0554-1 Security update for kubernetes SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2018-4303 Important: kubernetes security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Dec 11, 2018
References
- https://groups.google.com/forum/#%21topic/kubernetes-announce/GVllWCg6L88
- 46053 exploit
- RHSA-2018:3549 vendor-advisory
- RHSA-2018:3752 vendor-advisory
- 46052 exploit
- RHSA-2018:3624 vendor-advisory
- https://www.coalfire.com/The-Coalfire-Blog/December-2018/Kubernetes-Vulnerability-What-You-Can-Should-Do
- https://github.com/kubernetes/kubernetes/issues/71411
- RHSA-2018:3742 vendor-advisory
- RHSA-2018:3754 vendor-advisory
- RHSA-2018:3537 vendor-advisory
- https://github.com/evict/poc_CVE-2018-1002105
- RHSA-2018:3598 vendor-advisory
- RHSA-2018:3551 vendor-advisory
- 106068 vdb-entry
- https://security.netapp.com/advisory/ntap-20190416-0001/
- [oss-security] 20190628 Re: linux-distros membership application - Microsoft mailing-list
- [oss-security] 20190706 Re: linux-distros membership application - Microsoft mailing-list
- [oss-security] 20190706 Re: linux-distros membership application - Microsoft mailing-list
- openSUSE-SU-2020:0554 vendor-advisory