ghsa-j8fq-86c5-5v2r
Vulnerability from github
Published
2021-10-27 18:53
Modified
2024-09-16 13:56
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Summary
Remote code execution in dask
Details

An issue was discovered in Dask (aka python-dask) through 2021.09.1. Single machine Dask clusters started with dask.distributed.LocalCluster or dask.distributed.Client (which defaults to using LocalCluster) would mistakenly configure their respective Dask workers to listen on external interfaces (typically with a randomly selected high port) rather than only on localhost. A Dask cluster created using this method (when running on a machine that has an applicable port exposed) could be used by a sophisticated attacker to achieve remote code execution.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "dask"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2021.10.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-42343"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-668"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-10-27T18:16:11Z",
    "nvd_published_at": "2021-10-26T11:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "An issue was discovered in Dask (aka python-dask) through 2021.09.1. Single machine Dask clusters started with dask.distributed.LocalCluster or dask.distributed.Client (which defaults to using LocalCluster) would mistakenly configure their respective Dask workers to listen on external interfaces (typically with a randomly selected high port) rather than only on localhost. A Dask cluster created using this method (when running on a machine that has an applicable port exposed) could be used by a sophisticated attacker to achieve remote code execution.",
  "id": "GHSA-j8fq-86c5-5v2r",
  "modified": "2024-09-16T13:56:48Z",
  "published": "2021-10-27T18:53:48Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/dask/distributed/security/advisories/GHSA-hwqr-f3v9-hwxr"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-42343"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dask/distributed/pull/5427"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dask/distributed/commit/afce4be8e05fb180e50a9d9e38465f1a82295e1b"
    },
    {
      "type": "WEB",
      "url": "https://docs.dask.org/en/latest/changelog.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-j8fq-86c5-5v2r"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dask/dask/tags"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dask/distributed"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/dask/PYSEC-2021-387.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Remote code execution in dask"
}


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