cve/2024/CVE-2024-21493.md

CVE-2024-21493

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.

POC

Reference

• https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/
• https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/
• https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-5961078
• https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-5961078

Github

• https://github.com/fkie-cad/nvd-json-data-feeds