CVE-2020-24855: @easy team/easywebpack cli Path Traversal Vulnerability

MODERATE
Advisory Identifier: GHSA-252h-2cmq-pmr6
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CVSS 5.3
CWE-22
Published
Advisory Summary

CVE-2020-24855 is a MODERATE (CVSS 5.3) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting @easy team/easywebpack cli libraries in the npm ecosystem. The issue involves easywebpack-cli path traversal vulnerability. Remediation is available by upgrading affected packages to version 4.5.2.

CVE-2020-24855 at a Glance

CVE Identifier CVE-2020-24855
GHSA Identifier GHSA-252h-2cmq-pmr6
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product @easy team/easywebpack cli
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:3.1/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-2020-24855

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

@easy-team/easywebpack-cli fixed: 4.5.2 
npm install @easy-team/easywebpack-cli@4.5.2
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 @easy-team/easywebpack-cli

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2020-24855, inspect your project dependencies using npm:

npm ls @easy-team/easywebpack-cli

Analyze the terminal output to locate any version of @easy team/easywebpack cli in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.5.2), your application is affected.

Note: The npm ls @easy-team/easywebpack-cli 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 @easy team/easywebpack cli, 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

Directory Traversal vulnerability in easywebpack-cli before 4.5.2 allows attackers to obtain sensitive information via crafted GET request.

CVE-2020-24855 Affected @easy team/easywebpack cli Versions

1 component(s)
Fixed Versions:
4.5.2
Product / Package Ecosystem Affected Versions Fixed Version
@easy-team/easywebpack-cli
npm/@easy-team/easywebpack-cli
npm
< 4.5.2
4.5.2

References

NVD — CVE-2020-24855 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-24855
@easy team/easywebpack cli Source Repository REPOSITORY
https://github.com/easy-team/easywebpack-cli/issues/25
Security Fix Commit FIX COMMIT
https://github.com/easy-team/easywebpack-cli/commit/eb3f54603f58ea706d0c03fd6eb76c94176eae52
@easy team/easywebpack cli Source Repository REPOSITORY
https://github.com/easy-team/easywebpack-cli

Frequently Asked Questions

What is CVE-2020-24855?
CVE-2020-24855 is a security vulnerability in @easy team/easywebpack cli involving easywebpack-cli Path Traversal vulnerability under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which @easy team/easywebpack cli versions are affected?
Affected versions include releases prior to 4.5.2 across affected packages: @easy-team/easywebpack-cli.
What version fixes CVE-2020-24855?
Upgrading to 4.5.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is @easy-team/easywebpack-cli affected?
Yes, @easy-team/easywebpack-cli is affected in releases prior to 4.5.2. Upgrade your dependency to 4.5.2 or later.
What is the CVSS score of CVE-2020-24855?
CVE-2020-24855 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2020-24855?
CVE-2020-24855 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 CVE-2020-24855?
Run the dependency tree command: 'npm ls @easy-team/easywebpack-cli'. 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-252h-2cmq-pmr6",
  "modified" : "2022-12-20T15:46:28Z",
  "published" : "2022-12-15T21:30:28Z",
  "aliases" : [ "CVE-2020-24855" ],
  "summary" : "easywebpack-cli Path Traversal vulnerability",
  "details" : "Directory Traversal vulnerability in easywebpack-cli before 4.5.2 allows attackers to obtain sensitive information via crafted GET request.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@easy-team/easywebpack-cli"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.5.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-24855"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/easy-team/easywebpack-cli/issues/25"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/easy-team/easywebpack-cli/commit/eb3f54603f58ea706d0c03fd6eb76c94176eae52"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/easy-team/easywebpack-cli"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-12-15T23:30:37Z",
    "nvd_published_at" : "2022-12-15T19:15:00Z"
  }
}