CVE-2019-16777: Npm Npm Vulnerable To Global Node_modules Vulnerability

HIGH
Advisory Identifier: GHSA-4328-8hgf-7wjr
CVSS 7.7
CWE-269 CWE-22
Published
Advisory Summary

CVE-2019-16777 is a HIGH (CVSS 7.7) npm vulnerable to global node_modules vulnerability (CWE-269: Improper Privilege Management) affecting Npm libraries in the npm ecosystem. The issue involves npm vulnerable to global node_modules binary overwrite. Remediation is available by upgrading affected packages to version 6.13.4.

CVE-2019-16777 at a Glance

CVE Identifier CVE-2019-16777
GHSA Identifier GHSA-4328-8hgf-7wjr
Severity HIGH
CVSS v3.1 Base Score 7.7
CWE Classification CWE-269: Improper Privilege Management
Affected Product Npm
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N).

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

How to Fix CVE-2019-16777

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

npm fixed: 6.13.4
npm install npm@6.13.4
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 npm

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2019-16777, inspect your project dependencies using npm:

npm ls npm

Analyze the terminal output to locate any version of Npm in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 6.13.4), your application is affected.

Note: The npm ls npm 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-269: Improper Privilege Management, where the product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. In Npm, 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 the npm CLI prior to 6.13.4 are vulnerable to a Global node_modules Binary Overwrite. It fails to prevent existing globally-installed binaries to be overwritten by other package installations. For example, if a package was installed globally and created a `serve` binary, any subsequent installs of packages that also create a `serve` binary would overwrite the first binary. This will not overwrite system binaries but only binaries put into the global node_modules directory. This behavior is still allowed in local installations and also through install scripts. This vulnerability bypasses a user using the --ignore-scripts install option. ## Recommendation Upgrade to version 6.13.4 or later.

CVE-2019-16777 Affected Npm Versions

1 component(s)
Fixed Versions:
6.13.4
Product / Package Ecosystem Affected Versions Fixed Version
npm
npm
< 6.13.4
6.13.4

References

Frequently Asked Questions

What is CVE-2019-16777?
CVE-2019-16777 is a security vulnerability in Npm involving npm Vulnerable to Global node_modules Binary Overwrite under CWE-269: Improper Privilege Management.
Which Npm versions are affected?
Affected versions include releases prior to 6.13.4 across affected packages: npm.
What version fixes CVE-2019-16777?
Upgrading to 6.13.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is npm affected?
Yes, npm is affected in releases prior to 6.13.4. Upgrade your dependency to 6.13.4 or later.
What is the CVSS score of CVE-2019-16777?
CVE-2019-16777 has a CVSS v3.1 base score of 7.7 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N.
What CWE is associated with CVE-2019-16777?
CVE-2019-16777 is classified under CWE-269: Improper Privilege Management (The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.).
How can I check npm dependencies for CVE-2019-16777?
Run the dependency tree command: 'npm ls npm'. 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-4328-8hgf-7wjr",
  "modified" : "2022-08-11T00:00:45Z",
  "published" : "2019-12-13T15:39:32Z",
  "aliases" : [ "CVE-2019-16777" ],
  "summary" : "npm Vulnerable to Global node_modules Binary Overwrite",
  "details" : "Versions of  the npm CLI prior to 6.13.4 are vulnerable to a Global node_modules Binary Overwrite. It fails to prevent existing globally-installed binaries to be overwritten by other package installations. \n\nFor example, if a package was installed globally and created a `serve` binary, any subsequent installs of packages that also create a `serve` binary would overwrite the first binary. This will not overwrite system binaries but only binaries put into the global node_modules directory.\n\nThis behavior is still allowed in local installations and also through install scripts. This vulnerability bypasses a user using the --ignore-scripts install option.\n\n\n## Recommendation\n\nUpgrade to version 6.13.4 or later.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "npm"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "6.13.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/npm/cli/security/advisories/GHSA-4328-8hgf-7wjr"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-16777"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHEA-2020:0330"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2020:0573"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2020:0579"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2020:0597"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2020:0602"
  }, {
    "type" : "WEB",
    "url" : "https://blog.npmjs.org/post/189618601100/binary-planting-with-the-npm-cli"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-4328-8hgf-7wjr"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/npm/cli"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z36UKPO5F3PQ3Q2POMF5LEKXWAH5RUFP"
  }, {
    "type" : "WEB",
    "url" : "https://security.gentoo.org/glsa/202003-48"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/1437"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/security-alerts/cpujan2020.html"
  }, {
    "type" : "WEB",
    "url" : "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00027.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22", "CWE-269" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T20:57:02Z",
    "nvd_published_at" : "2019-12-13T01:15:00Z"
  }
}