Vulnerabilities in pkg:npm/nestie

PACKAGE
Advisory Identifier: GHSA-m7rg-8wvq-846v
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Advisory Summary

CVE-2021-25947 is a CRITICAL (CVSS 9.8) prototype pollution vulnerability (CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')) affecting Nestie libraries in the npm ecosystem. The issue involves prototype pollution in nestie. Remediation is available by upgrading affected packages to version 1.0.1.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/nestie

1 Known Advisory Record(s)

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

Advisory ID CVE / NVD Severity Summary
GHSA-m7rg-8wvq-846v CVE-2021-25947 CRITICAL Prototype pollution in nestie

CVE-2021-25947 at a Glance

CVE Identifier CVE-2021-25947
GHSA Identifier GHSA-m7rg-8wvq-846v
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Product Nestie
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:H/I:H/A:H).

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 High (I:H)
Availability High (A:H)

How to Fix CVE-2021-25947

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

nestie fixed: 1.0.1 
npm install nestie@1.0.1
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 nestie

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2021-25947, inspect your project dependencies using npm:

npm ls nestie

Analyze the terminal output to locate any version of Nestie in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.1), your application is affected.

Note: The npm ls nestie 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-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'), where the product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype. In Nestie, 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

Prototype pollution vulnerability in 'nestie' versions 0.0.0 through 1.0.0 allows an attacker to cause a denial of service and may lead to remote code execution.

CVE-2021-25947 Affected Nestie Versions

1 component(s)
Fixed Versions:
1.0.1
Product / Package Ecosystem Affected Versions Fixed Version
nestie
npm/nestie
npm
< 1.0.1
1.0.1

References

NVD — CVE-2021-25947 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-25947
Security Fix Commit FIX COMMIT
https://github.com/lukeed/nestie/commit/bc80d5898d1e5e8a3d325d355eda0c325c8dcfc2
www.whitesourcesoftware.com/vulnerability-datab... WEB
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25947

Frequently Asked Questions

What is CVE-2021-25947?
CVE-2021-25947 is a security vulnerability in Nestie involving Prototype pollution in nestie under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').
Which Nestie versions are affected?
Affected versions include releases prior to 1.0.1 across affected packages: nestie.
What version fixes CVE-2021-25947?
Upgrading to 1.0.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is nestie affected?
Yes, nestie is affected in releases prior to 1.0.1. Upgrade your dependency to 1.0.1 or later.
What is the CVSS score of CVE-2021-25947?
CVE-2021-25947 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2021-25947?
CVE-2021-25947 is classified under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.).
How can I check npm dependencies for CVE-2021-25947?
Run the dependency tree command: 'npm ls nestie'. 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-m7rg-8wvq-846v",
  "modified" : "2023-08-08T19:57:34Z",
  "published" : "2021-06-07T21:49:14Z",
  "aliases" : [ "CVE-2021-25947" ],
  "summary" : "Prototype pollution in nestie",
  "details" : "Prototype pollution vulnerability in 'nestie' versions 0.0.0 through 1.0.0 allows an attacker to cause a denial of service and may lead to remote code execution.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "nestie"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.0.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-25947"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/lukeed/nestie/commit/bc80d5898d1e5e8a3d325d355eda0c325c8dcfc2"
  }, {
    "type" : "WEB",
    "url" : "https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25947"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1321", "CWE-913" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-06-04T18:32:41Z",
    "nvd_published_at" : "2021-06-03T20:15:00Z"
  }
}