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CVE-2018-1002105

CRITICAL
Published 2018-12-05T21:00:00
Actions:

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CVSS Score

V3.0
9.8
/10
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.904
probability
of exploitation in the wild

There is a 90.4% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.996
Higher than 99.6% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Kubernetes

Kubernetes

Affected Versions:

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 unspecified unspecified

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed CRITICAL

Privilege Escalation in Kubernetes

GHSA-579h-mv94-g4gp

Advisory Details

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 Packages

Go github.com/kubernetes/kubernetes
ECOSYSTEM: ≥0 <1.10.11
Go github.com/kubernetes/kubernetes
ECOSYSTEM: ≥1.11.0 <1.11.5
Go github.com/kubernetes/kubernetes
ECOSYSTEM: ≥1.12.0 <1.12.3

CVSS Scoring

CVSS Score

9.0

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2018-1002105
WEB https://github.com/kubernetes/kubernetes/issues/71411
WEB https://github.com/kubernetes/kubernetes/commit/2257c1ecbe3c0cf71dd50b82752ae189c94ec905
WEB https://www.securityfocus.com/bid/106068
WEB https://www.openwall.com/lists/oss-security/2019/07/06/4
WEB https://www.openwall.com/lists/oss-security/2019/07/06/3
WEB https://www.openwall.com/lists/oss-security/2019/06/28/2
WEB https://www.exploit-db.com/exploits/46053
WEB https://www.exploit-db.com/exploits/46052
WEB https://www.coalfire.com/The-Coalfire-Blog/December-2018/Kubernetes-Vulnerability-What-You-Can-Should-Do
WEB https://security.netapp.com/advisory/ntap-20190416-0001
WEB https://lists.opensuse.org/opensuse-security-announce/2020-04/msg00041.html
WEB https://groups.google.com/forum/#!topic/kubernetes-announce/GVllWCg6L88
WEB https://github.com/evict/poc_CVE-2018-1002105
WEB https://access.redhat.com/errata/RHSA-2018:3754
WEB https://access.redhat.com/errata/RHSA-2018:3752
WEB https://access.redhat.com/errata/RHSA-2018:3742
WEB https://access.redhat.com/errata/RHSA-2018:3624
WEB https://access.redhat.com/errata/RHSA-2018:3598
WEB https://access.redhat.com/errata/RHSA-2018:3551
WEB https://access.redhat.com/errata/RHSA-2018:3549
WEB https://access.redhat.com/errata/RHSA-2018:3537

Advisory provided by GitHub Security Advisory Database. Published: February 15, 2022, Modified: May 20, 2021

References

https://groups.google.com/forum/#%21topic/kubernetes-announce/GVllWCg6L88
https://www.exploit-db.com/exploits/46053/
https://access.redhat.com/errata/RHSA-2018:3549
https://access.redhat.com/errata/RHSA-2018:3752
https://www.exploit-db.com/exploits/46052/
https://access.redhat.com/errata/RHSA-2018:3624
https://www.coalfire.com/The-Coalfire-Blog/December-2018/Kubernetes-Vulnerability-What-You-Can-Should-Do
https://github.com/kubernetes/kubernetes/issues/71411
https://access.redhat.com/errata/RHSA-2018:3742
https://access.redhat.com/errata/RHSA-2018:3754
https://access.redhat.com/errata/RHSA-2018:3537
https://github.com/evict/poc_CVE-2018-1002105
https://access.redhat.com/errata/RHSA-2018:3598
https://access.redhat.com/errata/RHSA-2018:3551
http://www.securityfocus.com/bid/106068
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
Published: 2018-12-05T21:00:00
Last Modified: 2024-08-05T12:47:57.159Z
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