CVE-2023-2727
Vulnerability from cvelistv5
Published
2023-07-03 20:05
Modified
2024-08-02 06:33
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Summary
Bypassing policies imposed by the ImagePolicyWebhook admission plugin
References
jordan@liggitt.nethttp://www.openwall.com/lists/oss-security/2023/07/06/2Mailing List, Third Party Advisory
jordan@liggitt.nethttps://github.com/kubernetes/kubernetes/issues/118640Issue Tracking
jordan@liggitt.nethttps://groups.google.com/g/kubernetes-security-announce/c/vPWYJ_L84m8Mailing List
jordan@liggitt.nethttps://security.netapp.com/advisory/ntap-20230803-0004/
Impacted products
KubernetesKubernetes
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T06:33:05.475Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://groups.google.com/g/kubernetes-security-announce/c/vPWYJ_L84m8"
          },
          {
            "tags": [
              "issue-tracking",
              "x_transferred"
            ],
            "url": "https://github.com/kubernetes/kubernetes/issues/118640"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/07/06/2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20230803-0004/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Kubernetes",
          "vendor": "Kubernetes",
          "versions": [
            {
              "lessThanOrEqual": "\u003c=",
              "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"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "Stanislav L\u00e1zni\u010dka"
        }
      ],
      "datePublic": "2023-06-15T04:30:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003eUsers 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.\u003c/div\u003e"
            }
          ],
          "value": "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.\n\n"
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-554",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-554 Functionality Bypass"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20 Improper Input Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-07-03T20:05:04.329Z",
        "orgId": "a6081bf6-c852-4425-ad4f-a67919267565",
        "shortName": "kubernetes"
      },
      "references": [
        {
          "tags": [
            "mailing-list"
          ],
          "url": "https://groups.google.com/g/kubernetes-security-announce/c/vPWYJ_L84m8"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/kubernetes/kubernetes/issues/118640"
        },
        {
          "url": "http://www.openwall.com/lists/oss-security/2023/07/06/2"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20230803-0004/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003e\u003cdiv\u003eTo mitigate this vulnerability, upgrade Kubernetes: \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://kubernetes.io/docs/tasks/administer-cluster/cluster-management/#upgrading-a-cluster\"\u003ehttps://kubernetes.io/docs/tasks/administer-cluster/cluster-management/#upgrading-a-cluster\u003c/a\u003e\u003c/div\u003e\u003c/div\u003e"
            }
          ],
          "value": "To mitigate this vulnerability, upgrade Kubernetes:  https://kubernetes.io/docs/tasks/administer-cluster/cluster-management/#upgrading-a-cluster https://kubernetes.io/docs/tasks/administer-cluster/cluster-management/#upgrading-a-cluster \n\n\n\n"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Bypassing policies imposed by the ImagePolicyWebhook admission plugin",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003e\u003cdiv\u003ePrior to upgrading, this vulnerability can be mitigated by running v\u003cspan style=\"background-color: var(--wht);\"\u003ealidation webhooks (such as Gatekeeper and Kyverno) to enforce the same restrictions for ephemeral containers.\u003c/span\u003e\u003c/div\u003e\u003c/div\u003e"
            }
          ],
          "value": "Prior to upgrading, this vulnerability can be mitigated by running validation webhooks (such as Gatekeeper and Kyverno) to enforce the same restrictions for ephemeral containers.\n\n\n\n"
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a6081bf6-c852-4425-ad4f-a67919267565",
    "assignerShortName": "kubernetes",
    "cveId": "CVE-2023-2727",
    "datePublished": "2023-07-03T20:05:04.329Z",
    "dateReserved": "2023-05-16T00:31:53.873Z",
    "dateUpdated": "2024-08-02T06:33:05.475Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-2727\",\"sourceIdentifier\":\"jordan@liggitt.net\",\"published\":\"2023-07-03T21:15:09.480\",\"lastModified\":\"2023-08-03T15:15:20.513\",\"vulnStatus\":\"Modified\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\\n\\n\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.2,\"impactScore\":5.2},{\"source\":\"jordan@liggitt.net\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.2,\"impactScore\":5.2}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]},{\"source\":\"jordan@liggitt.net\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"1.24.14\",\"matchCriteriaId\":\"44D47082-4E70-4CBE-B52B-B2A83903F17B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.25.0\",\"versionEndIncluding\":\"1.25.10\",\"matchCriteriaId\":\"9CB1E96C-4CC8-4BE3-9BC6-2AE760B8AD3F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.26.0\",\"versionEndIncluding\":\"1.26.5\",\"matchCriteriaId\":\"2EFB3393-262F-4179-B397-A08519AD6BE3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.27.0\",\"versionEndIncluding\":\"1.27.2\",\"matchCriteriaId\":\"0B26D20B-7A52-4957-8D0A-9D65572B764C\"}]}]}],\"references\":[{\"url\":\"http://www.openwall.com/lists/oss-security/2023/07/06/2\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/kubernetes/kubernetes/issues/118640\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Issue Tracking\"]},{\"url\":\"https://groups.google.com/g/kubernetes-security-announce/c/vPWYJ_L84m8\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Mailing List\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20230803-0004/\",\"source\":\"jordan@liggitt.net\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.