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CVE-2025-36846: Critical OS Command Injection Vulnerability in Eveo URVE Web Manager

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Overview

Cybersecurity has taken center stage with the discovery of a severe vulnerability, CVE-2025-36846, in the widely used Eveo URVE Web Manager. This application, often used by organizations for streamlined web management, has been found to have an endpoint exposed to unauthenticated users which is susceptible to Operating System (OS) Command Injection. This vulnerability is not only concerning due to the high-risk nature of OS command injection attacks but also because it affects any organization that has not updated their Eveo URVE Web Manager to the latest version.

Vulnerability Summary

CVE ID: CVE-2025-36846
Severity: Critical (9.8 CVSS score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage

Affected Products

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Product | Affected Versions

Eveo URVE Web Manager | 27.02.2025 and older

How the Exploit Works

The vulnerability lies in the lack of proper sanitization of user inputs within the /_internal/pc/vpro.php endpoint of the Eveo URVE Web Manager application. The endpoint takes an input parameter which is passed directly into the shell_exec() function of PHP. This allows an attacker to execute arbitrary OS commands on the server running the Eveo URVE Web Manager. This vulnerability can be exploited remotely by unauthenticated users, making it particularly dangerous.

Conceptual Example Code

An attacker could potentially exploit this vulnerability by sending a specially crafted HTTP request that includes malicious shell commands. Here is a conceptual example:

POST /_internal/pc/vpro.php HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
input_param=;rm+-rf+/; # This is an example of a malicious payload

In this example, the “input_param” is the parameter that the vulnerable endpoint uses. The value `;rm -rf /;` is a malicious payload that, if executed, will delete all files on the server.

Mitigation

It is highly recommended for all organizations using the Eveo URVE Web Manager to apply the vendor patch to mitigate this vulnerability. If an immediate upgrade is not possible, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation. It is also advisable to always sanitize user inputs to prevent OS command injection vulnerabilities.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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