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CVE-2023-43646

8.6 · HIGH

get-func-name is a module to retrieve a function's name securely and consistently both in NodeJS and the browser.

Published Sep 27, 2023CWE-400EPSS 1.38%

Overview

CVE-2023-43646 is a high-severity vulnerability. It was published on September 27, 2023 and has a CVSS 3.1 base score of 8.6 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/chaijs/get-func-name/commit/f934b228b5e2cb94d6c8576d3aac05493f667c69GitHubgithub.com/chaijs/get-func-name/security/advisories/GHSA-4q6p-r6v2-jvc5GitHubgithub.com/chaijs/get-func-name/commit/f934b228b5e2cb94d6c8576d3aac05493f667c69GitHubgithub.com/chaijs/get-func-name/security/advisories/GHSA-4q6p-r6v2-jvc5

How CyberStrike helps

Frequently asked questions

What is CVE-2023-43646?

CVE-2023-43646 is a high-severity vulnerability. It was published on September 27, 2023 and has a CVSS 3.1 base score of 8.6 (HIGH).

How severe is CVE-2023-43646?

This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-43646?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-43646?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-43646 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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