GHSA-g8m7-qhv7-9h5x: Serve here Path Traversal Vulnerability

HIGH
Share
CWE-22
Published
Advisory Summary

GHSA-g8m7-qhv7-9h5x is a HIGH path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Serve here libraries in the npm ecosystem. The issue involves path traversal in serve-here.js. Remediation is available in the latest vendor maintenance releases.

GHSA-g8m7-qhv7-9h5x at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-g8m7-qhv7-9h5x
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Serve here
Package Ecosystem npm
Published Date
Last Updated

How to Fix GHSA-g8m7-qhv7-9h5x

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

serve-here fixed: Latest secure release 
npm install serve-here@Latest secure release
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 serve-here

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-g8m7-qhv7-9h5x, inspect your project dependencies using npm:

npm ls serve-here

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

Note: The npm ls serve-here 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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Serve here, 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 `serve-here.js` prior to 1.2.0 are vulnerable to Path Traversal. The package fails to sanitize URLs, allowing attackers to access server files outside of the served folder using relative paths. ## Recommendation Upgrade to version 1.2.0 or later.

GHSA-g8m7-qhv7-9h5x Affected Serve here Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
serve-here
npm/serve-here
npm
≤ 3.2.0

References

Serve here Source Repository REPOSITORY
https://github.com/vivaxy/here/pull/17
Security Fix Commit FIX COMMIT
https://github.com/vivaxy/here/commit/298dbab41344dfb7f95f66b1fa7b5cfb436bd4a2
hackerone.com/reports/296254 WEB
https://hackerone.com/reports/296254
hackerone.com/reports/569966 WEB
https://hackerone.com/reports/569966
www.npmjs.com/advisories/554 WEB
https://www.npmjs.com/advisories/554

Frequently Asked Questions

What is GHSA-g8m7-qhv7-9h5x?
GHSA-g8m7-qhv7-9h5x is a security vulnerability in Serve here involving Path Traversal in serve-here.js under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Serve here versions are affected?
Affected versions include releases prior to current release patches across affected packages: serve-here.
What version fixes GHSA-g8m7-qhv7-9h5x?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is serve-here affected?
Yes, serve-here is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What CWE is associated with GHSA-g8m7-qhv7-9h5x?
GHSA-g8m7-qhv7-9h5x is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check npm dependencies for GHSA-g8m7-qhv7-9h5x?
Run the dependency tree command: 'npm ls serve-here'. 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-g8m7-qhv7-9h5x",
  "modified" : "2021-09-22T18:35:22Z",
  "published" : "2019-07-05T21:07:14Z",
  "aliases" : [ ],
  "summary" : "Path Traversal in serve-here.js",
  "details" : "Versions of `serve-here.js` prior to 1.2.0 are vulnerable to Path Traversal. The package fails to sanitize URLs, allowing attackers to access server files outside of the served folder using relative paths.\n\n\n## Recommendation\n\nUpgrade to version 1.2.0 or later.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "serve-here"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "3.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/vivaxy/here/pull/17"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vivaxy/here/commit/298dbab41344dfb7f95f66b1fa7b5cfb436bd4a2"
  }, {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/296254"
  }, {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/569966"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/554"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2019-06-14T16:17:51Z",
    "nvd_published_at" : null
  }
}