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 payloadIn 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.