9.8
CRITICAL
CVE-2023-23557
Hermes Type Confusion Arbitrary Code Execution Vulnerability
Description

An error in Hermes' algorithm for copying objects properties prior to commit a00d237346894c6067a594983be6634f4168c9ad could be used by a malicious attacker to execute arbitrary code via type confusion. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.

INFO

Published Date :

May 18, 2023, 10:15 p.m.

Last Modified :

Nov. 7, 2023, 4:07 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-23557 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 Facebook hermes
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-2023-23557.

URL Resource
https://github.com/facebook/hermes/commit/a00d237346894c6067a594983be6634f4168c9ad Patch Vendor Advisory
https://www.facebook.com/security/advisories/cve-2023-23557 Patch 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-2023-23557 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-23557 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
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Removed CWE Facebook, Inc. CWE-843
  • Initial Analysis by [email protected]

    May. 26, 2023

    Action Type Old Value New Value
    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/a00d237346894c6067a594983be6634f4168c9ad No Types Assigned https://github.com/facebook/hermes/commit/a00d237346894c6067a594983be6634f4168c9ad Patch, Vendor Advisory
    Changed Reference Type https://www.facebook.com/security/advisories/cve-2023-23557 No Types Assigned https://www.facebook.com/security/advisories/cve-2023-23557 Patch, Vendor Advisory
    Added CWE NIST CWE-843
    Added CPE Configuration OR *cpe:2.3:a:facebook:hermes:*:*:*:*:*:*:*:* versions up to (excluding) 2023-01-10
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-2023-23557 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-2023-23557 weaknesses.

Exploit Prediction

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

0.42 }} 0.06%

score

0.74163

percentile

CVSS31 - Vulnerability Scoring System
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