CVE-2018-1002105

Name: CVE-2018-1002105
Creator: NVD / NIST
Published: 2018-12-05T21:29:00.403+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 86.98%

Last modified Jun 17, 2026

CVE-2018-1002105 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 86.98% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

86.98%

99.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-388

Affected Software

Vendor	Product	Versions	Update
Kubernetes	Kubernetes	>= 1.0.0, <= 1.9.11	—
Kubernetes	Kubernetes	>= 1.10.0, <= 1.10.10	—
Kubernetes	Kubernetes	>= 1.11.0, <= 1.11.4	—
Kubernetes	Kubernetes	>= 1.12.0, <= 1.12.2	—
Kubernetes	Kubernetes	1.9.12	Beta0
Redhat	Openshift Container Platform	3.2	—
Redhat	Openshift Container Platform	3.3	—
Redhat	Openshift Container Platform	3.4	—
Redhat	Openshift Container Platform	3.5	—
Redhat	Openshift Container Platform	3.6	—
Redhat	Openshift Container Platform	3.8	—
Redhat	Openshift Container Platform	3.10	—
Redhat	Openshift Container Platform	3.11	—
Netapp	Trident	All versions	—

References

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/106068Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:3537Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3549Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3551Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3598Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3624Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3742Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3752Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3754Third Party Advisory
https://github.com/evict/poc_CVE-2018-1002105Exploit, Third Party Advisory
https://github.com/kubernetes/kubernetes/issues/71411Issue Tracking, Mitigation, Patch, Third Party Advisory
https://groups.google.com/forum/#%21topic/kubernetes-announce/GVllWCg6L88
https://security.netapp.com/advisory/ntap-20190416-0001/Third Party Advisory
https://www.coalfire.com/The-Coalfire-Blog/December-2018/Kubernetes-Vulnerability-What-You-Can-Should-DoMitigation, Third Party Advisory
https://www.exploit-db.com/exploits/46052/Exploit, Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/46053/Exploit, Third Party Advisory, VDB Entry
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/106068Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:3537Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3549Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3551Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3598Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3624Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3742Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3752Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3754Third Party Advisory
https://github.com/evict/poc_CVE-2018-1002105Exploit, Third Party Advisory
https://github.com/kubernetes/kubernetes/issues/71411Issue Tracking, Mitigation, Patch, Third Party Advisory
https://groups.google.com/forum/#%21topic/kubernetes-announce/GVllWCg6L88
https://security.netapp.com/advisory/ntap-20190416-0001/Third Party Advisory
https://www.coalfire.com/The-Coalfire-Blog/December-2018/Kubernetes-Vulnerability-What-You-Can-Should-DoMitigation, Third Party Advisory
https://www.exploit-db.com/exploits/46052/Exploit, Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/46053/Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Dec 5, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-1002105?

How severe is CVE-2018-1002105?

Severity scoring for CVE-2018-1002105 is pending analysis. The EPSS model estimates a 86.98% probability of exploitation in the next 30 days.

How do I fix CVE-2018-1002105?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-1002105?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST