CVE-2024-21494: All versions of the package github.com/greenpau/caddy-security are vulnerable to Authentication Bypass by Spoofing via the X-Forwarded-For header...
Description
All versions of the package github.com/greenpau/caddy-security are vulnerable to Authentication Bypass by Spoofing via the X-Forwarded-For header due to improper input sanitization. An attacker can spoof an IP address used in the user identity module (/whoami API endpoint). This could lead to unauthorized access if the system trusts this spoofed IP address.
Classification
CVE ID: CVE-2024-21494
CVSS Base Severity: MEDIUM
CVSS Base Score: 5.4
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Problem Types
Authentication Bypass by SpoofingAffected Products
Vendor: n/a
Product: github.com/greenpau/caddy-security
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.02% (probability of being exploited)
EPSS Percentile: 3.55% (scored less or equal to compared to others)
EPSS Date: 2025-05-23 (when was this score calculated)
Stakeholder-Specific Vulnerability Categorization (SSVC)
SSVC Exploitation: poc
SSVC Technical Impact: partial
SSVC Automatable: false
References
https://nvd.nist.gov/vuln/detail/CVE-2024-21494https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-6249859
https://github.com/greenpau/caddy-security/issues/266
https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/