GHSA-F5F7-6478-QM6P

Vulnerability from github – Published: 2021-11-01 17:32 – Updated: 2021-11-01 17:26
VLAI?
Summary
Files or Directories Accessible to External Parties in kubernetes
Details

A security issue was discovered in Kubernetes where a user may be able to create a container with subpath volume mounts to access files & directories outside of the volume, including on the host filesystem.

Severity ?
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "k8s.io/kubernetes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.19.15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "k8s.io/kubernetes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.20.0"
            },
            {
              "fixed": "1.20.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "k8s.io/kubernetes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.21.0"
            },
            {
              "fixed": "1.21.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "k8s.io/kubernetes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.22.0"
            },
            {
              "fixed": "1.22.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-25741"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-552"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-11-01T17:26:17Z",
    "nvd_published_at": "2021-09-20T17:15:00Z",
    "severity": "HIGH"
  },
  "details": "A security issue was discovered in Kubernetes where a user may be able to create a container with subpath volume mounts to access files \u0026 directories outside of the volume, including on the host filesystem.",
  "id": "GHSA-f5f7-6478-qm6p",
  "modified": "2021-11-01T17:26:17Z",
  "published": "2021-11-01T17:32:28Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/bottlerocket-os/bottlerocket/security/advisories/GHSA-f5f7-6478-qm6p"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-25741"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kubernetes/kubernetes/issues/104980"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/kubernetes/kubernetes"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/kubernetes-security-announce/c/nyfdhK24H7s"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20211008-0006"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Files or Directories Accessible to External Parties in kubernetes"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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