CVE-2023-43646

EIP tracks 1 public exploit for CVE-2023-43646. PoCs published by 200101WhoAmI.

AI-analyzed exploit summary This repository contains a functional proof-of-concept for CVE-2023-43646, a ReDoS vulnerability in the 'get-func-name' package used by Chai.js. The exploit leverages a crafted input with excessive whitespace and a function keyword to trigger excessive backtracking in a regular expression, leading to high CPU usage.

get-func-name is a module to retrieve a function's name securely and consistently both in NodeJS and the browser. Versions prior to 2.0.1 are subject to a regular expression denial of service (redos) vulnerability which may lead to a denial of service when parsing malicious input. This vulnerability can be exploited when there is an imbalance in parentheses, which results in excessive backtracking and subsequently increases the CPU load and processing time significantly. This vulnerability can be triggered using the following input: '\t'.repeat(54773) + '\t/function/i'. This issue has been addressed in commit `f934b228b` which has been included in releases from 2.0.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.