github - ghsa-qc2g-gmh6-95p4

ghsa-qc2g-gmh6-95p4

Vulnerability from github

Published

2023-07-03 21:30

Modified

2023-07-05 22:46

Severity ?

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Summary

kube-apiserver vulnerable to policy bypass

Details

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.

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "k8s.io/kubernetes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.27.0"
            },
            {
              "fixed": "1.27.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "k8s.io/kubernetes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.26.0"
            },
            {
              "fixed": "1.26.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "k8s.io/kubernetes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.25.0"
            },
            {
              "fixed": "1.25.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "k8s.io/kubernetes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.24.15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-2727"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-07-05T22:46:57Z",
    "nvd_published_at": "2023-07-03T21:15:09Z",
    "severity": "MODERATE"
  },
  "details": "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",
  "id": "GHSA-qc2g-gmh6-95p4",
  "modified": "2023-07-05T22:46:57Z",
  "published": "2023-07-03T21:30:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-2727"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kubernetes/kubernetes/issues/118640"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kubernetes/kubernetes/pull/118356"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kubernetes/kubernetes/pull/118471"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kubernetes/kubernetes/pull/118473"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kubernetes/kubernetes/pull/118474"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kubernetes/kubernetes/pull/118512"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/kubernetes/kubernetes"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/kubernetes-security-announce/c/vPWYJ_L84m8"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2023/07/06/2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "kube-apiserver vulnerable to policy bypass"
}

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

▼	URL	Tags
	https://groups.google.com/g/kubernetes-security-announce/c/vPWYJ_L84m8	mailing-list
	https://github.com/kubernetes/kubernetes/issues/118640	issue-tracking
	http://www.openwall.com/lists/oss-security/2023/07/06/2
	https://security.netapp.com/advisory/ntap-20230803-0004/

Impacted products

▼	Vendor	Product
	Kubernetes	Kubernetes

Show details on NVD website

JSON

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"
}

Sightings

Author	Source	Type	Date

Nomenclature

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.

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