GHSA-PGH6-M65R-2RHQ

Vulnerability from github – Published: 2021-10-12 16:04 – Updated: 2021-10-21 14:57
VLAI?
Summary
DOS and Open Redirect with user input
Details

Impact

A redirect vulnerability in the fastify-static module allows remote attackers to redirect Mozilla Firefox users to arbitrary websites via a double slash // followed by a domain: http://localhost:3000//a//youtube.com/%2e%2e%2f%2e%2e.

A DOS vulnerability is possible if the URL contains invalid characters curl --path-as-is "http://localhost:3000//^/.."

The issue shows up on all the fastify-static applications that set redirect: true option. By default, it is false.

Patches

The issue has been patched in fastify-static@4.4.1

Workarounds

If updating is not an option, you can sanitize the input URLs using the rewriteUrl server option.

References

For more information

If you have any questions or comments about this advisory: * Open an issue in fastify-static * Contact the security team

Severity ?
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:H
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "fastify-static"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.2.4"
            },
            {
              "fixed": "4.4.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-22964"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-248",
      "CWE-601"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-10-11T18:38:24Z",
    "nvd_published_at": "2021-10-14T15:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nA redirect vulnerability in the `fastify-static` module allows remote attackers to redirect Mozilla Firefox users to arbitrary websites via a double slash `//` followed by a domain: `http://localhost:3000//a//youtube.com/%2e%2e%2f%2e%2e`.\n\nA DOS vulnerability is possible if the URL contains invalid characters `curl --path-as-is \"http://localhost:3000//^/..\"`\n\nThe issue shows up on all the `fastify-static` applications that set `redirect: true` option. By default, it is `false`.\n\n### Patches\nThe issue has been patched in `fastify-static@4.4.1`\n\n### Workarounds\nIf updating is not an option, you can sanitize the input URLs using the [`rewriteUrl`](https://www.fastify.io/docs/latest/Server/#rewriteurl) server option.\n\n### References\n\n+ Bug founder: drstrnegth\n+ [hackerone Report](https://hackerone.com/reports/1361804)\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [fastify-static](https://github.com/fastify/fastify-static)\n* Contact the [security team](https://github.com/fastify/fastify/blob/main/SECURITY.md#the-fastify-security-team)\n",
  "id": "GHSA-pgh6-m65r-2rhq",
  "modified": "2021-10-21T14:57:14Z",
  "published": "2021-10-12T16:04:17Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/fastify/fastify-static/security/advisories/GHSA-pgh6-m65r-2rhq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22964"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fastify/fastify-static/commit/c31f17d107cb19a0e96733c80a9abf16c56166d4"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/1361804"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/fastify/fastify-static"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "DOS and Open Redirect with user input"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.