CVE-2021-23436
Immer Type Confusion Remote Code Execution Bypass
Description
This affects the package immer before 9.0.6. A type confusion vulnerability can lead to a bypass of CVE-2020-28477 when the user-provided keys used in the path parameter are arrays. In particular, this bypass is possible because the condition (p === "__proto__" || p === "constructor") in applyPatches_ returns false if p is ['__proto__'] (or ['constructor']). The === operator (strict equality operator) returns false if the operands have different type.
INFO
Published Date :
Sept. 1, 2021, 6:15 p.m.
Last Modified :
Nov. 21, 2024, 5:51 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-23436 has a 4 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2021-23436.
| URL | Resource |
|---|---|
| https://github.com/immerjs/immer/commit/fa671e55ee9bd42ae08cc239102b665a23958237 | Patch Third Party Advisory |
| https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1579266 | Exploit Patch Third Party Advisory |
| https://snyk.io/vuln/SNYK-JS-IMMER-1540542 | Exploit Patch Third Party Advisory |
| https://github.com/immerjs/immer/commit/fa671e55ee9bd42ae08cc239102b665a23958237 | Patch Third Party Advisory |
| https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1579266 | Exploit Patch Third Party Advisory |
| https://snyk.io/vuln/SNYK-JS-IMMER-1540542 | Exploit Patch Third Party Advisory |
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).
None
Dockerfile Go JavaScript
My personal repository
EVER Wallet browser extension
everscale wasm browser-extension web3
Dockerfile Shell Rust TypeScript SCSS HTML JavaScript
Tool for validating Grafana community plugins
Go Dockerfile JavaScript
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-23436 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-23436 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/immerjs/immer/commit/fa671e55ee9bd42ae08cc239102b665a23958237 Added Reference https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1579266 Added Reference https://snyk.io/vuln/SNYK-JS-IMMER-1540542 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Sep. 10, 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/immerjs/immer/commit/fa671e55ee9bd42ae08cc239102b665a23958237 No Types Assigned https://github.com/immerjs/immer/commit/fa671e55ee9bd42ae08cc239102b665a23958237 Patch, Third Party Advisory Changed Reference Type https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1579266 No Types Assigned https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1579266 Exploit, Patch, Third Party Advisory Changed Reference Type https://snyk.io/vuln/SNYK-JS-IMMER-1540542 No Types Assigned https://snyk.io/vuln/SNYK-JS-IMMER-1540542 Exploit, Patch, Third Party Advisory Added CWE NIST CWE-843 Added CPE Configuration OR *cpe:2.3:a:immer_project:immer:*:*:*:*:*:node.js:*:* versions up to (excluding) 9.0.6
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-23436 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-2021-23436
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} -0.28%
score
0.22872
percentile