CVE-2021-24045
Facebook Hermes Type Confusion Leak
Description
A type confusion vulnerability could be triggered when resolving the "typeof" unary operator in Facebook Hermes prior to v0.10.0. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.
INFO
Published Date :
Dec. 13, 2021, 9:15 p.m.
Last Modified :
Dec. 15, 2021, 9:49 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
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-2021-24045.
| URL | Resource |
|---|---|
| https://github.com/facebook/hermes/commit/55e1b2343f4deb1a1b5726cfe1e23b2068217ff2 | Patch Third Party Advisory |
| https://www.facebook.com/security/advisories/cve-2021-24045 | Vendor 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-24045 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-24045 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]
Dec. 15, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/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/facebook/hermes/commit/55e1b2343f4deb1a1b5726cfe1e23b2068217ff2 No Types Assigned https://github.com/facebook/hermes/commit/55e1b2343f4deb1a1b5726cfe1e23b2068217ff2 Patch, Third Party Advisory Changed Reference Type https://www.facebook.com/security/advisories/cve-2021-24045 No Types Assigned https://www.facebook.com/security/advisories/cve-2021-24045 Vendor Advisory Added CWE NIST CWE-843 Added CPE Configuration OR *cpe:2.3:a:facebook:hermes:*:*:*:*:*:*:*:* versions up to (excluding) 0.10.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-24045 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-2021-24045
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.24 }} 0.02%
score
0.65093
percentile