CVE-2018-1000136: Electron Electron Vulnerable To Code Execution Vulnerability

HIGH
Advisory Identifier: GHSA-8xwg-wv7v-4vqp
CVSS 8.1
CWE-20
Published
Advisory Summary

CVE-2018-1000136 is a HIGH (CVSS 8.1) electron vulnerable to code execution vulnerability (CWE-20: Improper Input Validation) affecting Electron libraries in the npm ecosystem. The issue involves electron vulnerable to code execution by re-enabling node.js integration. Remediation is available by upgrading affected packages to version 1.7.13, 1.8.4, 2.0.0-beta.5.

CVE-2018-1000136 at a Glance

CVE Identifier CVE-2018-1000136
GHSA Identifier GHSA-8xwg-wv7v-4vqp
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-20: Improper Input Validation
Affected Product Electron
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 8.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2018-1000136

To remediate this vulnerability, upgrade all affected Electron dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

electron fixed: 1.7.13
npm install electron@1.7.13
electron fixed: 1.8.4
npm install electron@1.8.4
electron fixed: 2.0.0-beta.5
npm install electron@2.0.0-beta.5
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

npm ls electron

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2018-1000136, inspect your project dependencies using npm:

npm ls electron

Analyze the terminal output to locate any version of Electron in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.7.13), your application is affected.

Note: The npm ls electron command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Electron, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A vulnerability has been discovered which allows Node.js integration to be re-enabled in some Electron applications that disable it. For the application to be impacted by this vulnerability it must meet all of these conditions - Runs on Electron 1.7, 1.8, or a 2.0.0-beta - Allows execution of arbitrary remote code - Disables Node.js integration - Does not explicitly declare webviewTag: false in its webPreferences - Does not enable the nativeWindowOption option - Does not intercept new-window events and manually override event.newGuest without using the supplied options tag ## Recommendation Update to `electron` version 1.7.13, 1.8.4, or 2.0.0-beta.5 or later. If you are unable to update your Electron version can mitigate the vulnerability with the following code. ```js app.on('web-contents-created', (event, win) => { win.on('new-window', (event, newURL, frameName, disposition, options, additionalFeatures) => { if (!options.webPreferences) options.webPreferences = {}; options.webPreferences.nodeIntegration = false; options.webPreferences.nodeIntegrationInWorker = false; options.webPreferences.webviewTag = false; delete options.webPreferences.preload; }) }) // and *IF* you don't use WebViews at all, // you might also want app.on('web-contents-created', (event, win) => { win.on('will-attach-webview', (event, webPreferences, params) => { event.preventDefault(); }) }) ```

CVE-2018-1000136 Affected Electron Versions

3 component(s)
Fixed Versions:
1.7.131.8.42.0.0-beta.5
Product / Package Ecosystem Affected Versions Fixed Version
electron
npm
≥ 1.7.0
< 1.7.13
1.7.13
electron
npm
≥ 1.8.0
< 1.8.4
1.8.4
electron
npm
≥ 2.0.0-beta.1
< 2.0.0-beta.5
2.0.0-beta.5

References

Frequently Asked Questions

What is CVE-2018-1000136?
CVE-2018-1000136 is a security vulnerability in Electron involving Electron Vulnerable to Code Execution by Re-Enabling Node.js Integration under CWE-20: Improper Input Validation.
Which Electron versions are affected?
Affected versions include releases prior to 1.7.13, 1.8.4, 2.0.0-beta.5 across affected packages: electron.
What version fixes CVE-2018-1000136?
Upgrading to 1.7.13, 1.8.4, 2.0.0-beta.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is electron affected?
Yes, electron is affected in releases prior to 1.7.13, 1.8.4, 2.0.0-beta.5. Upgrade your dependency to 1.7.13, 1.8.4, 2.0.0-beta.5 or later.
What is the CVSS score of CVE-2018-1000136?
CVE-2018-1000136 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2018-1000136?
CVE-2018-1000136 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check npm dependencies for CVE-2018-1000136?
Run the dependency tree command: 'npm ls electron'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-8xwg-wv7v-4vqp",
  "modified" : "2023-09-13T19:06:52Z",
  "published" : "2018-03-26T16:41:17Z",
  "aliases" : [ "CVE-2018-1000136" ],
  "summary" : "Electron Vulnerable to Code Execution by Re-Enabling Node.js Integration",
  "details" : "A vulnerability has been discovered which allows Node.js integration to be re-enabled in some Electron applications that disable it.\n\nFor the application to be impacted by this vulnerability it must meet all of these conditions\n\n- Runs on Electron 1.7, 1.8, or a 2.0.0-beta\n- Allows execution of arbitrary remote code\n- Disables Node.js integration\n- Does not explicitly declare webviewTag: false in its webPreferences\n- Does not enable the nativeWindowOption option\n- Does not intercept new-window events and manually override event.newGuest without using the supplied options tag\n\n\n## Recommendation\n\nUpdate to `electron` version 1.7.13, 1.8.4, or 2.0.0-beta.5 or later.\n\nIf you are unable to update your Electron version can mitigate the vulnerability with the following code.\n\n```js\napp.on('web-contents-created', (event, win) => {\n  win.on('new-window', (event, newURL, frameName, disposition,\n                        options, additionalFeatures) => {\n    if (!options.webPreferences) options.webPreferences = {};\n    options.webPreferences.nodeIntegration = false;\n    options.webPreferences.nodeIntegrationInWorker = false;\n    options.webPreferences.webviewTag = false;\n    delete options.webPreferences.preload;\n  })\n})\n\n// and *IF* you don't use WebViews at all,\n// you might also want\napp.on('web-contents-created', (event, win) => {\n  win.on('will-attach-webview', (event, webPreferences, params) => {\n    event.preventDefault();\n  })\n})\n```",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "electron"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.7.0"
      }, {
        "fixed" : "1.7.13"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "electron"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.8.0"
      }, {
        "fixed" : "1.8.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "electron"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0-beta.1"
      }, {
        "fixed" : "2.0.0-beta.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-1000136"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/electron/electron/pull/12271"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/electron/electron/pull/12292"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/electron/electron/pull/12294"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/electron/electron/commit/1a48ee28276e6588dbf4e70e58d78e7bfdc57043"
  }, {
    "type" : "WEB",
    "url" : "https://electronjs.org/blog/webview-fix"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/electron/electron"
  }, {
    "type" : "WEB",
    "url" : "https://www.electronjs.org/blog/webview-fix"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/574"
  }, {
    "type" : "WEB",
    "url" : "https://www.trustwave.com/Resources/SpiderLabs-Blog/CVE-2018-1000136---Electron-nodeIntegration-Bypass"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T21:26:59Z",
    "nvd_published_at" : null
  }
}