CVE-2023-2727 Bypassing policies imposed by the ImagePolicyWebhook admission plugin

2023-07-0320:05:04

CWE-20

kubernetes

www.cve.org

cve-2023-2727

bypassing policies

imagepolicywebhook

ephemeral containers

kubernetes clusters

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

AI Score

6.8

Confidence

High

EPSS

0.002

Percentile

60.6%

JSON

Users may be able to launch containers using images that are restricted by ImagePolicyWebhook when using ephemeral containers. Kubernetes clusters are only affected if the ImagePolicyWebhook admission plugin is used together with ephemeral containers.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Kubernetes",
    "vendor": "Kubernetes",
    "versions": [
      {
        "lessThanOrEqual": "<=",
        "status": "affected",
        "version": "v1.24.14",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "v1.25.0 - v1.25.10"
      },
      {
        "status": "affected",
        "version": "v1.26.0 - v1.26.5"
      },
      {
        "status": "affected",
        "version": "v1.27.0 - v1.27.2"
      }
    ]
  }
]