9.8
CRITICAL
CVE-2021-23807
JSONPointer Type Confusion Prototype Pollution in Package
Description

This affects the package jsonpointer before 5.0.0. A type confusion vulnerability can lead to a bypass of a previous Prototype Pollution fix when the pointer components are arrays.

INFO

Published Date :

Nov. 3, 2021, 6:15 p.m.

Last Modified :

Nov. 5, 2021, 6:08 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2021-23807 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-23807 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Jsonpointer_project jsonpointer
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-23807.

URL Resource
https://github.com/janl/node-jsonpointer/commit/a0345f3550cd9c4d89f33b126390202b89510ad4 Patch Third Party Advisory
https://github.com/janl/node-jsonpointer/pull/51 Patch Third Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910273 Exploit Mitigation Patch Third Party Advisory VDB Entry
https://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577288 Exploit Mitigation Patch Third Party Advisory VDB Entry

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

My personal repository

Updated: 1 month, 4 weeks ago
0 stars 0 fork 0 watcher
Born at : Oct. 6, 2023, 4:45 p.m. This repo has been linked 78 different CVEs too.

Research CVEs

Updated: 2 years, 2 months ago
0 stars 0 fork 0 watcher
Born at : July 18, 2022, 3:23 p.m. This repo has been linked 36 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-23807 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-23807 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Nov. 05, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/janl/node-jsonpointer/commit/a0345f3550cd9c4d89f33b126390202b89510ad4 No Types Assigned https://github.com/janl/node-jsonpointer/commit/a0345f3550cd9c4d89f33b126390202b89510ad4 Patch, Third Party Advisory
    Changed Reference Type https://github.com/janl/node-jsonpointer/pull/51 No Types Assigned https://github.com/janl/node-jsonpointer/pull/51 Patch, Third Party Advisory
    Changed Reference Type https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910273 No Types Assigned https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910273 Exploit, Mitigation, Patch, Third Party Advisory, VDB Entry
    Changed Reference Type https://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577288 No Types Assigned https://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577288 Exploit, Mitigation, Patch, Third Party Advisory, VDB Entry
    Added CWE NIST CWE-843
    Added CPE Configuration OR *cpe:2.3:a:jsonpointer_project:jsonpointer:*:*:*:*:*:node.js:*:* versions up to (excluding) 5.0.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-23807 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-23807 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

17.02 }} 2.41%

score

0.96130

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability