Vulnerabilities in pkg:npm/harp

PACKAGE
Advisory Identifier: GHSA-46hv-7769-j7rx
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Advisory Summary

CVE-2019-5437 is a MODERATE (CVSS 5.3) unauthorized file access vulnerability (CWE-548: Exposure of Information Through Directory Listing) affecting Harp libraries in the npm ecosystem. The issue involves unauthorized file access in harp. Remediation is available by upgrading affected packages to version 0.40.2.

3 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/harp

3 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/harp. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-46hv-7769-j7rx CVE-2019-5437 MODERATE Unauthorized File Access in harp
GHSA-6fmm-47qc-p4m4 CVE-2019-5438 MODERATE Unauthorized File Access in harp
GHSA-cx7r-634m-2q2h - MODERATE Cross-Site Scripting in harp

CVE-2019-5437 at a Glance

CVE Identifier CVE-2019-5437
GHSA Identifier GHSA-46hv-7769-j7rx
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-548: Exposure of Information Through Directory Listing
Affected Product Harp
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 5.3

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:L/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 Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2019-5437

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

harp fixed: 0.40.2 
npm install harp@0.40.2
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 harp

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2019-5437, inspect your project dependencies using npm:

npm ls harp

Analyze the terminal output to locate any version of Harp in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.40.2), your application is affected.

Note: The npm ls harp 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-548: Exposure of Information Through Directory Listing, where the product inappropriately exposes a directory listing with an index of all the resources located inside of the directory. In Harp, 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

Affected versions of `harp` are vulnerable to Unauthorized File Access. The package states that it ignores files and directories with names that start with an underscore, such as `_secret-folder`. If the underscore character is URL encoded the server delivers the file. ## Recommendation Upgrade to version `0.40.2` or later.

CVE-2019-5437 Affected Harp Versions

1 component(s)
Fixed Versions:
0.40.2
Product / Package Ecosystem Affected Versions Fixed Version
harp
npm/harp
npm
< 0.40.2
0.40.2

References

NVD — CVE-2019-5437 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-5437
Security Fix Commit FIX COMMIT
https://github.com/sintaxi/harp/commit/1ec790baeeb2bfdb4584f1998af3d10a8fa31210
hackerone.com/reports/453820 WEB
https://hackerone.com/reports/453820
www.npmjs.com/advisories/807 WEB
https://www.npmjs.com/advisories/807

Frequently Asked Questions

What is CVE-2019-5437?
CVE-2019-5437 is a security vulnerability in Harp involving Unauthorized File Access in harp under CWE-548: Exposure of Information Through Directory Listing.
Which Harp versions are affected?
Affected versions include releases prior to 0.40.2 across affected packages: harp.
What version fixes CVE-2019-5437?
Upgrading to 0.40.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is harp affected?
Yes, harp is affected in releases prior to 0.40.2. Upgrade your dependency to 0.40.2 or later.
What is the CVSS score of CVE-2019-5437?
CVE-2019-5437 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2019-5437?
CVE-2019-5437 is classified under CWE-548: Exposure of Information Through Directory Listing (The product inappropriately exposes a directory listing with an index of all the resources located inside of the directory.).
How can I check npm dependencies for CVE-2019-5437?
Run the dependency tree command: 'npm ls harp'. 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-46hv-7769-j7rx",
  "modified" : "2023-09-07T21:43:42Z",
  "published" : "2019-06-13T16:12:22Z",
  "aliases" : [ "CVE-2019-5437" ],
  "summary" : "Unauthorized File Access in harp",
  "details" : "Affected versions of `harp` are vulnerable to Unauthorized File Access. The package states that it ignores files and directories with names that start with an underscore, such as `_secret-folder`. If the underscore character is URL encoded the server delivers the file.\n\n## Recommendation\n\nUpgrade to version `0.40.2` or later.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "harp"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.40.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-5437"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/sintaxi/harp/commit/1ec790baeeb2bfdb4584f1998af3d10a8fa31210"
  }, {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/453820"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/807"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-548" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2019-06-13T16:10:40Z",
    "nvd_published_at" : null
  }
}