cve/2024/CVE-2024-21497.md

### [CVE-2024-21497](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-21497)
![](https://img.shields.io/static/v1?label=Product&message=github.com%2Fgreenpau%2Fcaddy-security&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=0%3C%20*%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Open%20Redirect&color=brighgreen)

### Description

All versions of the package github.com/greenpau/caddy-security are vulnerable to Open Redirect via the redirect_url parameter. An attacker could perform a phishing attack and trick users into visiting a malicious website by crafting a convincing URL with this parameter. To exploit this vulnerability, the user must take an action, such as clicking on a portal button or using the browser’s back button, to trigger the redirection.

### POC

#### Reference
- https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/
- https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-6249861

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