GHSA-QH73-QC3P-RJV2

Vulnerability from github – Published: 2022-02-11 18:57 – Updated: 2022-02-23 22:11
VLAI?
Summary
Uncaught Exception in fastify-multipart
Details

Impact

This is a bypass of CVE-2020-8136 (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8136). By providing a name=constructor property it is still possible to crash the application. The original fix only checks for the key __proto__ (https://github.com/fastify/fastify-multipart/pull/116).

All users are recommended to upgrade

Patches

v5.3.1 includes a patch

Workarounds

No workarounds are possible.

References

Read up https://www.fastify.io/docs/latest/Guides/Prototype-Poisoning/

For more information

If you have any questions or comments about this advisory: * Open an issue in https://github.com/fastify/fastify-multipart * Email us at hello@matteocollina.com

Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "fastify-multipart"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-23597"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-02-11T18:57:53Z",
    "nvd_published_at": "2022-02-11T17:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nThis is a bypass of CVE-2020-8136 (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8136).\nBy providing a `name=constructor` property it is still possible to crash the application.\nThe original fix only checks for the key `__proto__` (https://github.com/fastify/fastify-multipart/pull/116).\n\nAll users are recommended to upgrade\n\n### Patches\n\nv5.3.1 includes a patch\n \n### Workarounds\n\nNo workarounds are possible.\n\n### References\n\nRead up https://www.fastify.io/docs/latest/Guides/Prototype-Poisoning/\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [https://github.com/fastify/fastify-multipart](https://github.com/fastify/fastify-multipart)\n* Email us at [hello@matteocollina.com](mailto:hello@matteocollina.com)\n",
  "id": "GHSA-qh73-qc3p-rjv2",
  "modified": "2022-02-23T22:11:16Z",
  "published": "2022-02-11T18:57:53Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/fastify/fastify-multipart/security/advisories/GHSA-qh73-qc3p-rjv2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23597"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fastify/fastify-multipart/pull/116"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fastify/fastify-multipart/commit/a70dc7059a794589bd4fe066453141fc609e6066"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fastify/fastify-multipart"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fastify/fastify-multipart/releases/tag/v5.3.1"
    },
    {
      "type": "WEB",
      "url": "https://snyk.io/vuln/SNYK-JS-FASTIFYMULTIPART-2395480"
    },
    {
      "type": "WEB",
      "url": "https://www.fastify.io/docs/latest/Guides/Prototype-Poisoning"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Uncaught Exception in fastify-multipart"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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