CVE-2024-21493: caddy-security (CVSS 5.3)

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.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-129 CWE-129

Affected Products

Vendor	Product	Versions
greenpau	caddy-security	All

References

Other References

https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/ https://github.com/greenpau/caddy-security/issues/263 https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-5961078 https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/ https://github.com/greenpau/caddy-security/issues/263 https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-5961078

Frequently Asked Questions

What is CVE-2024-21493? +

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. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2024-21493? +

CVE-2024-21493 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-21493? +

CVE-2024-21493 affects products from greenpau, specifically: caddy-security. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-21493? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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