5.4
MEDIUM
CVE-2024-21494
Apache Caddy Authentication Bypass by Spoofing Via 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.

INFO

Published Date :

Feb. 17, 2024, 5:15 a.m.

Last Modified :

Nov. 21, 2024, 8:54 a.m.

Source :

report@snyk.io

Remotely Exploitable :

Yes !

Impact Score :

2.5

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2024-21494 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2024-21494 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Greenpau caddy-security

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Publications from Trail of Bits

conference-presentations academic-papers security-reviews

HTML Python Solidity JavaScript Dockerfile Makefile PHP C

Updated: 1 month, 1 week ago
1517 stars 178 fork 178 watcher
Born at : April 29, 2015, 7:30 p.m. This repo has been linked 22 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-21494 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-21494 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by nvd@nist.gov

    Feb. 27, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
    Added CWE CWE-290
    Added CPE Configuration OR *cpe:2.3:a:greenpau:caddy-security:*:*:*:*:*:*:*:*
    Added Reference Type CVE: https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/ Types: Third Party Advisory
    Added Reference Type Snyk: https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/ Types: Third Party Advisory
    Added Reference Type CVE: https://github.com/greenpau/caddy-security/issues/266 Types: Issue Tracking
    Added Reference Type Snyk: https://github.com/greenpau/caddy-security/issues/266 Types: Issue Tracking
    Added Reference Type CVE: https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-6249859 Types: Third Party Advisory
    Added Reference Type Snyk: https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-6249859 Types: Third Party Advisory
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/
    Added Reference https://github.com/greenpau/caddy-security/issues/266
    Added Reference https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-6249859
  • CVE Modified by report@snyk.io

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Received by report@snyk.io

    Feb. 17, 2024

    Action Type Old Value New Value
    Added 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.
    Added Reference Snyk https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-6249859 [No types assigned]
    Added Reference Snyk https://github.com/greenpau/caddy-security/issues/266 [No types assigned]
    Added Reference Snyk https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/ [No types assigned]
    Added CWE Snyk CWE-290
    Added CVSS V3.1 Snyk AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS31 - Vulnerability Scoring System
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