Vulnerabilities in pkg:npm/fast-json-patch

PACKAGE
Advisory Identifier: GHSA-8gh8-hqwg-xf34
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Advisory Summary

CVE-2021-4279 is a HIGH (CVSS 7.3) starcounter-jack json-patch prototype pollution vulnerability vulnerability (CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')) affecting Fast json patch libraries in the npm ecosystem. The issue involves starcounter-jack json-patch prototype pollution vulnerability. Remediation is available by upgrading affected packages to version 3.1.1.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/fast-json-patch

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/fast-json-patch. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-8gh8-hqwg-xf34 CVE-2021-4279 HIGH Starcounter-Jack JSON-Patch Prototype Pollution vulnerability

CVE-2021-4279 at a Glance

CVE Identifier CVE-2021-4279
GHSA Identifier GHSA-8gh8-hqwg-xf34
Severity HIGH
CVSS v3.1 Base Score 7.3
CWE Classification CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Product Fast json patch
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.3

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:L/A:L).

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 Low (I:L)
Availability Low (A:L)

How to Fix CVE-2021-4279

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

fast-json-patch fixed: 3.1.1 
npm install fast-json-patch@3.1.1
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 fast-json-patch

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2021-4279, inspect your project dependencies using npm:

npm ls fast-json-patch

Analyze the terminal output to locate any version of Fast json patch in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.1.1), your application is affected.

Note: The npm ls fast-json-patch 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 Fast json patch, 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 has been found in Starcounter-Jack JSON-Patch up to 3.1.0 and classified as problematic. This vulnerability affects unknown code. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.1.1 can address this issue. The name of the patch is 7ad6af41eabb2d799f698740a91284d762c955c9. It is recommended to upgrade the affected component. VDB-216778 is the identifier assigned to this vulnerability.

CVE-2021-4279 Affected Fast json patch Versions

1 component(s)
Fixed Versions:
3.1.1
Product / Package Ecosystem Affected Versions Fixed Version
fast-json-patch
npm/fast-json-patch
npm
< 3.1.1
3.1.1

References

NVD — CVE-2021-4279 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-4279
Fast json patch Source Repository REPOSITORY
https://github.com/Starcounter-Jack/JSON-Patch/pull/262
Security Fix Commit FIX COMMIT
https://github.com/Starcounter-Jack/JSON-Patch/commit/7ad6af41eabb2d799f698740a91284d762c955c9
blog.effectrenan.com/pwn2win-2021-illusi... WEB
https://blog.effectrenan.com/pwn2win-2021-illusion-web-challenge
Fast json patch Source Repository REPOSITORY
https://github.com/Starcounter-Jack/JSON-Patch
Fast json patch Release RELEASE
https://github.com/Starcounter-Jack/JSON-Patch/releases/tag/3.1.1
vuldb.com/ WEB
https://vuldb.com/?ctiid.216778
vuldb.com/ WEB
https://vuldb.com/?id.216778
www.huntr.dev/bounties/1-npm-fast... WEB
https://www.huntr.dev/bounties/1-npm-fast-json-patch

Frequently Asked Questions

What is CVE-2021-4279?
CVE-2021-4279 is a security vulnerability in Fast json patch involving Starcounter-Jack JSON-Patch Prototype Pollution vulnerability under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').
Which Fast json patch versions are affected?
Affected versions include releases prior to 3.1.1 across affected packages: fast-json-patch.
What version fixes CVE-2021-4279?
Upgrading to 3.1.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is fast-json-patch affected?
Yes, fast-json-patch is affected in releases prior to 3.1.1. Upgrade your dependency to 3.1.1 or later.
What is the CVSS score of CVE-2021-4279?
CVE-2021-4279 has a CVSS v3.1 base score of 7.3 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
What CWE is associated with CVE-2021-4279?
CVE-2021-4279 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-2021-4279?
Run the dependency tree command: 'npm ls fast-json-patch'. 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-8gh8-hqwg-xf34",
  "modified" : "2024-03-01T14:21:21Z",
  "published" : "2022-12-25T21:30:22Z",
  "aliases" : [ "CVE-2021-4279" ],
  "summary" : "Starcounter-Jack JSON-Patch Prototype Pollution vulnerability",
  "details" : "A vulnerability has been found in Starcounter-Jack JSON-Patch up to 3.1.0 and classified as problematic. This vulnerability affects unknown code. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.1.1 can address this issue. The name of the patch is 7ad6af41eabb2d799f698740a91284d762c955c9. It is recommended to upgrade the affected component. VDB-216778 is the identifier assigned to this vulnerability.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "fast-json-patch"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-4279"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Starcounter-Jack/JSON-Patch/pull/262"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Starcounter-Jack/JSON-Patch/commit/7ad6af41eabb2d799f698740a91284d762c955c9"
  }, {
    "type" : "WEB",
    "url" : "https://blog.effectrenan.com/pwn2win-2021-illusion-web-challenge"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/Starcounter-Jack/JSON-Patch"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Starcounter-Jack/JSON-Patch/releases/tag/3.1.1"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?ctiid.216778"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?id.216778"
  }, {
    "type" : "WEB",
    "url" : "https://www.huntr.dev/bounties/1-npm-fast-json-patch"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1321" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-12-30T16:27:22Z",
    "nvd_published_at" : "2022-12-25T20:15:00Z"
  }
}