CVE-2021-23450: Dojo Prototype Pollution Vulnerability

HIGH
Advisory Identifier: GHSA-m8gw-hjpr-rjv7
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CVSS 7.5
CWE-1321
Published
Advisory Summary

CVE-2021-23450 is a HIGH (CVSS 7.5) prototype pollution vulnerability (CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')) affecting Dojo libraries in the npm ecosystem. The issue involves prototype pollution in dojo. Remediation is available in the latest vendor maintenance releases.

CVE-2021-23450 at a Glance

CVE Identifier CVE-2021-23450
GHSA Identifier GHSA-m8gw-hjpr-rjv7
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Product Dojo
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.5

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:N/I:N/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 None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2021-23450

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

dojo fixed: Latest secure release 
npm install dojo@Latest secure release
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 dojo

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2021-23450, inspect your project dependencies using npm:

npm ls dojo

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

Note: The npm ls dojo 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 Dojo, 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

All versions of package dojo are vulnerable to Prototype Pollution via the setObject function.

CVE-2021-23450 Affected Dojo Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
dojo
npm/dojo
npm
≤ 1.16.4

References

NVD — CVE-2021-23450 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-23450
Dojo Source Repository REPOSITORY
https://github.com/dojo/dojo
Dojo Source Repository REPOSITORY
https://github.com/dojo/dojo/blob/4c39c14349408fc8274e19b399ffc660512ed07c/_base/lang.js%23L172
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2023/01/msg00030.html
snyk.io/vuln/snyk-java-orgw... WEB
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-2313036
snyk.io/vuln/snyk-java-orgw... WEB
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-2313035
snyk.io/vuln/snyk-java-orgw... WEB
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBDOJO-2313034
snyk.io/vuln/snyk-java-orgw... WEB
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2313033
snyk.io/vuln/snyk-js-dojo-1... WEB
https://snyk.io/vuln/SNYK-JS-DOJO-1535223
Dojo Security Information SECURITY
https://www.oracle.com/security-alerts/cpuapr2022.html
Dojo Security Information SECURITY
https://www.oracle.com/security-alerts/cpujul2022.html

Frequently Asked Questions

What is CVE-2021-23450?
CVE-2021-23450 is a security vulnerability in Dojo involving Prototype Pollution in dojo under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').
Which Dojo versions are affected?
Affected versions include releases prior to current release patches across affected packages: dojo.
What version fixes CVE-2021-23450?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is dojo affected?
Yes, dojo is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2021-23450?
CVE-2021-23450 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2021-23450?
CVE-2021-23450 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-2021-23450?
Run the dependency tree command: 'npm ls dojo'. 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-m8gw-hjpr-rjv7",
  "modified" : "2022-01-04T17:43:26Z",
  "published" : "2022-01-05T15:01:46Z",
  "aliases" : [ "CVE-2021-23450" ],
  "summary" : "Prototype Pollution in dojo",
  "details" : "All versions of package dojo are vulnerable to Prototype Pollution via the setObject function.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "dojo"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.16.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-23450"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/dojo/dojo"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dojo/dojo/blob/4c39c14349408fc8274e19b399ffc660512ed07c/_base/lang.js%23L172"
  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2023/01/msg00030.html"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-2313036"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-2313035"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBDOJO-2313034"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2313033"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JS-DOJO-1535223"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/security-alerts/cpuapr2022.html"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/security-alerts/cpujul2022.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1321" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-01-04T17:43:26Z",
    "nvd_published_at" : "2021-12-17T20:15:00Z"
  }
}