ghsa-4662-j96g-mv46
Vulnerability from github
Published
2018-06-07 19:43
Modified
2020-08-31 18:12
Summary
Arbitrary Code Injection in reduce-css-calc
Details

Affected versions of reduce-css-calc pass input directly to eval. If user input is passed into the calc function, this may result in cross-site scripting on the browser, or remote code execution on the server.

Proof of Concept

const reduceCSSCalc = require('reduce-css-calc'); console.log(reduceCSSCalc(`calc( (Buffer(10000)))`)); console.log(reduceCSSCalc(`calc( (global['fs'] = require('fs')))`)); console.log(reduceCSSCalc(`calc( (fs['readFileSync']("/etc/passwd", "utf-8")))`));

Recommendation

Update to version 1.2.5 or later.

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "reduce-css-calc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2016-10548"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T20:57:38Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "Affected versions of `reduce-css-calc` pass input directly to `eval`. If user input is passed into the calc function, this may result in cross-site scripting on the browser, or remote code execution on the server.\n\n## Proof of Concept\n\n```\nconst reduceCSSCalc = require(\u0027reduce-css-calc\u0027);\nconsole.log(reduceCSSCalc(`calc(                       (Buffer(10000)))`));\nconsole.log(reduceCSSCalc(`calc(                       (global[\u0027fs\u0027] = require(\u0027fs\u0027)))`));\nconsole.log(reduceCSSCalc(`calc(                       (fs[\u0027readFileSync\u0027](\"/etc/passwd\", \"utf-8\")))`));\n```\n\n\n\n## Recommendation\n\nUpdate to version 1.2.5 or later.",
  "id": "GHSA-4662-j96g-mv46",
  "modified": "2020-08-31T18:12:20Z",
  "published": "2018-06-07T19:43:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-10548"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/ChALkeR/415a41b561ebea9b341efbb40b802fc9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-4662-j96g-mv46"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/144"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Arbitrary Code Injection in reduce-css-calc"
}


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