CVE-2018-14731: Parcel bundler Remote Code Execution Vulnerability

HIGH
Advisory Identifier: GHSA-37q6-576q-vgr7
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CVSS 7.5
CWE-200
Published
Advisory Summary

CVE-2018-14731 is a HIGH (CVSS 7.5) remote code execution vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Parcel bundler libraries in the npm ecosystem. The issue involves missing origin validation in parcel-bundler. Remediation is available by upgrading affected packages to version 1.10.0.

CVE-2018-14731 at a Glance

CVE Identifier CVE-2018-14731
GHSA Identifier GHSA-37q6-576q-vgr7
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Parcel bundler
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.5

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

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

How to Fix CVE-2018-14731

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

parcel-bundler fixed: 1.10.0 
npm install parcel-bundler@1.10.0
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 parcel-bundler

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2018-14731, inspect your project dependencies using npm:

npm ls parcel-bundler

Analyze the terminal output to locate any version of Parcel bundler in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.10.0), your application is affected.

Note: The npm ls parcel-bundler 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-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Parcel bundler, 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

Versions of `parcel-bundler` before 1.10.0 are missing origin validation on the websocket server. This vulnerability allows a remote attacker to steal a developer's source code because the origin of requests to the websocket server that is used for Hot Module Replacement (HMR) are not validated. ## Recommendation Update to version 1.10.0 or later.

CVE-2018-14731 Affected Parcel bundler Versions

1 component(s)
Fixed Versions:
1.10.0
Product / Package Ecosystem Affected Versions Fixed Version
parcel-bundler
npm/parcel-bundler
npm
< 1.10.0
1.10.0

References

NVD — CVE-2018-14731 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-14731
Parcel bundler Source Repository REPOSITORY
https://github.com/parcel-bundler/parcel/issues/1783
Parcel bundler Source Repository REPOSITORY
https://github.com/parcel-bundler/parcel/pull/1794
Security Fix Commit FIX COMMIT
https://github.com/parcel-bundler/parcel/commit/066e0bf6bd26b15c78bd47df023452e4b20073e4
blog.cal1.cn/post/sniffing codes... WEB
https://blog.cal1.cn/post/Sniffing%20Codes%20in%20Hot%20Module%20Reloading%20Messages
blog.cal1.cn/post/sniffing codes... WEB
https://blog.cal1.cn/post/Sniffing%20Codes%20in%20Hot%20Module%20Reloading%20Messages)
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-37q6-576q-vgr7
Parcel bundler Source Repository REPOSITORY
https://github.com/parcel-bundler/parcel
www.npmjs.com/advisories/721 WEB
https://www.npmjs.com/advisories/721

Frequently Asked Questions

What is CVE-2018-14731?
CVE-2018-14731 is a security vulnerability in Parcel bundler involving Missing Origin Validation in parcel-bundler under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Parcel bundler versions are affected?
Affected versions include releases prior to 1.10.0 across affected packages: parcel-bundler.
What version fixes CVE-2018-14731?
Upgrading to 1.10.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is parcel-bundler affected?
Yes, parcel-bundler is affected in releases prior to 1.10.0. Upgrade your dependency to 1.10.0 or later.
What is the CVSS score of CVE-2018-14731?
CVE-2018-14731 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2018-14731?
CVE-2018-14731 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check npm dependencies for CVE-2018-14731?
Run the dependency tree command: 'npm ls parcel-bundler'. 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
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-37q6-576q-vgr7",
  "modified" : "2021-08-31T20:51:48Z",
  "published" : "2018-10-30T20:36:53Z",
  "aliases" : [ "CVE-2018-14731" ],
  "summary" : "Missing Origin Validation in parcel-bundler",
  "details" : "Versions of `parcel-bundler` before 1.10.0 are missing origin validation on the websocket server. This vulnerability allows a remote attacker to steal a developer's source code because the origin of requests to the websocket server that is used for Hot Module Replacement (HMR) are not validated.\n\n\n## Recommendation\n\nUpdate to version 1.10.0 or later.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "parcel-bundler"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.10.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-14731"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/parcel-bundler/parcel/issues/1783"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/parcel-bundler/parcel/pull/1794"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/parcel-bundler/parcel/commit/066e0bf6bd26b15c78bd47df023452e4b20073e4"
  }, {
    "type" : "WEB",
    "url" : "https://blog.cal1.cn/post/Sniffing%20Codes%20in%20Hot%20Module%20Reloading%20Messages"
  }, {
    "type" : "WEB",
    "url" : "https://blog.cal1.cn/post/Sniffing%20Codes%20in%20Hot%20Module%20Reloading%20Messages)"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-37q6-576q-vgr7"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/parcel-bundler/parcel"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/721"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T20:54:24Z",
    "nvd_published_at" : null
  }
}