CVE-2018-1002105

2018-12-0521:00:00

kubernetes

www.cve.org

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.6

Confidence

High

EPSS

0.346

Percentile

97.2%

JSON

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.

CNA Affected

[
  {
    "product": "Kubernetes",
    "vendor": "Kubernetes",
    "versions": [
      {
        "status": "affected",
        "version": "v1.0.x"
      },
      {
        "status": "affected",
        "version": "v1.1.x"
      },
      {
        "status": "affected",
        "version": "v1.2.x"
      },
      {
        "status": "affected",
        "version": "v1.3.x"
      },
      {
        "status": "affected",
        "version": "v1.4.x"
      },
      {
        "status": "affected",
        "version": "v1.5.x"
      },
      {
        "status": "affected",
        "version": "v1.6.x"
      },
      {
        "status": "affected",
        "version": "v1.7.x"
      },
      {
        "status": "affected",
        "version": "v1.8.x"
      },
      {
        "status": "affected",
        "version": "v1.9.x"
      },
      {
        "lessThan": "v1.10.11",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "v1.11.5",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "v1.12.3",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]