CVE-2021-4264: Dustjs linkedin Dustjs-linkedin Vulnerable To Prototype Pollution Vulnerability

HIGH
Advisory Identifier: GHSA-c6rp-wrp9-qr4q
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CVSS 8.8
CWE-1321 CWE-94 CWE-74
Published
Advisory Summary

CVE-2021-4264 is a HIGH (CVSS 8.8) dustjs-linkedin vulnerable to prototype pollution vulnerability (CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')) affecting Dustjs linkedin libraries in the npm ecosystem. The issue involves dustjs-linkedin vulnerable to prototype pollution. Remediation is available by upgrading affected packages to version 3.0.0.

CVE-2021-4264 at a Glance

CVE Identifier CVE-2021-4264
GHSA Identifier GHSA-c6rp-wrp9-qr4q
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Product Dustjs linkedin
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
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-2021-4264

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

dustjs-linkedin fixed: 3.0.0 
npm install dustjs-linkedin@3.0.0
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 dustjs-linkedin

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2021-4264, inspect your project dependencies using npm:

npm ls dustjs-linkedin

Analyze the terminal output to locate any version of Dustjs linkedin in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.0.0), your application is affected.

Note: The npm ls dustjs-linkedin 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 Dustjs linkedin, 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

A vulnerability was found in LinkedIn dustjs prior to version 3.0.0 and classified as problematic. Affected by this issue is some unknown functionality. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.0.0 can address this issue. The name of the patch is ddb6523832465d38c9d80189e9de60519ac307c3. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216464.

CVE-2021-4264 Affected Dustjs linkedin Versions

1 component(s)
Fixed Versions:
3.0.0
Product / Package Ecosystem Affected Versions Fixed Version
dustjs-linkedin
npm/dustjs-linkedin
npm
< 3.0.0
3.0.0

References

NVD — CVE-2021-4264 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-4264
Dustjs linkedin Source Repository REPOSITORY
https://github.com/linkedin/dustjs/issues/804
Dustjs linkedin Source Repository REPOSITORY
https://github.com/linkedin/dustjs/pull/805
Security Fix Commit FIX COMMIT
https://github.com/linkedin/dustjs/commit/ddb6523832465d38c9d80189e9de60519ac307c3
Dustjs linkedin Source Repository REPOSITORY
https://github.com/linkedin/dustjs
Dustjs linkedin Release RELEASE
https://github.com/linkedin/dustjs/releases/tag/v3.0.0
vuldb.com/ WEB
https://vuldb.com/?ctiid.216464
vuldb.com/ WEB
https://vuldb.com/?id.216464

Frequently Asked Questions

What is CVE-2021-4264?
CVE-2021-4264 is a security vulnerability in Dustjs linkedin involving dustjs-linkedin vulnerable to Prototype Pollution under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').
Which Dustjs linkedin versions are affected?
Affected versions include releases prior to 3.0.0 across affected packages: dustjs-linkedin.
What version fixes CVE-2021-4264?
Upgrading to 3.0.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is dustjs-linkedin affected?
Yes, dustjs-linkedin is affected in releases prior to 3.0.0. Upgrade your dependency to 3.0.0 or later.
What is the CVSS score of CVE-2021-4264?
CVE-2021-4264 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2021-4264?
CVE-2021-4264 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-2021-4264?
Run the dependency tree command: 'npm ls dustjs-linkedin'. 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-c6rp-wrp9-qr4q",
  "modified" : "2022-12-29T01:06:38Z",
  "published" : "2022-12-21T21:30:15Z",
  "aliases" : [ "CVE-2021-4264" ],
  "summary" : "dustjs-linkedin vulnerable to Prototype Pollution",
  "details" : "A vulnerability was found in LinkedIn dustjs prior to version 3.0.0 and classified as problematic. Affected by this issue is some unknown functionality. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.0.0 can address this issue. The name of the patch is ddb6523832465d38c9d80189e9de60519ac307c3. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216464.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "dustjs-linkedin"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-4264"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/linkedin/dustjs/issues/804"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/linkedin/dustjs/pull/805"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/linkedin/dustjs/commit/ddb6523832465d38c9d80189e9de60519ac307c3"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/linkedin/dustjs"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/linkedin/dustjs/releases/tag/v3.0.0"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?ctiid.216464"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?id.216464"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1321", "CWE-74", "CWE-94" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-12-22T03:35:37Z",
    "nvd_published_at" : "2022-12-21T19:15:00Z"
  }
}