CVE-2021-25949: Set getter Set-getter Prototype Pollution Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-jv35-xqg7-f92r
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CVSS 9.8
CWE-1321 CWE-915
Published
Advisory Summary

CVE-2021-25949 is a CRITICAL (CVSS 9.8) set-getter prototype pollution vulnerability vulnerability (CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')) affecting Set getter libraries in the npm ecosystem. The issue involves set-getter prototype pollution vulnerability. Remediation is available by upgrading affected packages to version 0.1.1.

CVE-2021-25949 at a Glance

CVE Identifier CVE-2021-25949
GHSA Identifier GHSA-jv35-xqg7-f92r
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Product Set getter
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-2021-25949

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

set-getter fixed: 0.1.1 
npm install set-getter@0.1.1
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 set-getter

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2021-25949, inspect your project dependencies using npm:

npm ls set-getter

Analyze the terminal output to locate any version of Set getter in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.1.1), your application is affected.

Note: The npm ls set-getter 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 Set getter, 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 ‘set-getter’ version 0.1.0 allows an attacker to cause a denial of service and may lead to remote code execution.

CVE-2021-25949 Affected Set getter Versions

1 component(s)
Fixed Versions:
0.1.1
Product / Package Ecosystem Affected Versions Fixed Version
set-getter
npm/set-getter
npm
< 0.1.1
0.1.1

References

NVD — CVE-2021-25949 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-25949
Security Fix Commit FIX COMMIT
https://github.com/doowb/set-getter/commit/66eb3f0d4686a4a8c7c3d6f7ecd8e570b580edc4
Set getter Source Repository REPOSITORY
https://github.com/doowb/set-getter
Set getter Source Repository REPOSITORY
https://github.com/doowb/set-getter/blob/5bc2750fe1c3db9651d936131be187744111378d/index.js#L56
web.archive.org/web/20210615022308/... WEB
https://web.archive.org/web/20210615022308/https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25949

Frequently Asked Questions

What is CVE-2021-25949?
CVE-2021-25949 is a security vulnerability in Set getter involving set-getter Prototype Pollution Vulnerability under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').
Which Set getter versions are affected?
Affected versions include releases prior to 0.1.1 across affected packages: set-getter.
What version fixes CVE-2021-25949?
Upgrading to 0.1.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is set-getter affected?
Yes, set-getter is affected in releases prior to 0.1.1. Upgrade your dependency to 0.1.1 or later.
What is the CVSS score of CVE-2021-25949?
CVE-2021-25949 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-2021-25949?
CVE-2021-25949 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-2021-25949?
Run the dependency tree command: 'npm ls set-getter'. 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-jv35-xqg7-f92r",
  "modified" : "2023-09-13T20:02:47Z",
  "published" : "2021-06-21T17:16:09Z",
  "aliases" : [ "CVE-2021-25949" ],
  "summary" : "set-getter Prototype Pollution Vulnerability",
  "details" : "Prototype pollution vulnerability in ‘set-getter’ version 0.1.0 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" : "set-getter"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-25949"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/doowb/set-getter/commit/66eb3f0d4686a4a8c7c3d6f7ecd8e570b580edc4"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/doowb/set-getter"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/doowb/set-getter/blob/5bc2750fe1c3db9651d936131be187744111378d/index.js#L56"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20210615022308/https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25949"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1321", "CWE-915" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-06-14T19:22:58Z",
    "nvd_published_at" : "2021-06-10T12:15:00Z"
  }
}