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CVE-2024-21493

5.3 · MEDIUM

All versions of the package github.com/greenpau/caddy-security are vulnerable to Improper Validation of Array Index when parsing a Caddyfile.

Published Feb 17, 2024CWE-129EPSS 0.72%

Overview

CVE-2024-21493 is a medium-severity vulnerability. It was published on February 17, 2024 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

All versions of the package github.com/greenpau/caddy-security are vulnerable to Improper Validation of Array Index when parsing a Caddyfile. Multiple parsing functions in the affected library do not validate whether their input values are nil before attempting to access elements, which can lead to a panic (index out of range). Panics during the parsing of a configuration file may introduce ambiguity and vulnerabilities, hindering the correct interpretation and configuration of the web server.

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

Refblog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/GitHubgithub.com/greenpau/caddy-security/issues/263Refsecurity.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-5961078Refblog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/GitHubgithub.com/greenpau/caddy-security/issues/263Refsecurity.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-5961078

How CyberStrike helps

Frequently asked questions

What is CVE-2024-21493?

CVE-2024-21493 is a medium-severity vulnerability. It was published on February 17, 2024 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2024-21493?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-21493?

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-2024-21493?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-21493 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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