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CVE-2025-3540: Critical Command Injection Vulnerability in H3C Magic

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Overview

The vulnerability CVE-2025-3540 is a critical one that affects multiple versions of H3C Magic, including NX15, NX30 Pro, NX400, and R3010 up to V100R014. It is primarily located within the function FCGI_WizardProtoProcess of the file /api/wizard/getCapability and is associated with the HTTP POST Request Handler component. This vulnerability can lead to command injection attacks, potentially causing significant system compromise and data leakage. As the exploit is already disclosed to the public, it poses an increasing risk to the affected systems.

Vulnerability Summary

CVE ID: CVE-2025-3540
Severity: Critical (8.0 CVSS Score)
Attack Vector: Local Network
Privileges Required: High
User Interaction: Required
Impact: System Compromise and Data Leakage

Affected Products

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Product | Affected Versions

H3C Magic NX15 | Up to V100R014
H3C Magic NX30 Pro | Up to V100R014
H3C Magic NX400 | Up to V100R014
H3C Magic R3010 | Up to V100R014

How the Exploit Works

The exploit takes advantage of insufficient sanitization in handling HTTP POST Requests to the /api/wizard/getCapability endpoint. This allows an attacker to inject arbitrary commands that the system subsequently executes, giving them the ability to manipulate the system or exfiltrate data.

Conceptual Example Code

A conceptual example of the vulnerability being exploited might look like the following, where the “malicious_payload” is the injected command:

POST /api/wizard/getCapability HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
{ "command": "; rm -rf /" }

In this example, the command “; rm -rf /” is injected, which, if executed, would delete all files in the system.

Recommended Mitigation

It is highly recommended to promptly apply the patch provided by the vendor. If immediate patching is not possible, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as a temporary mitigation. These systems can help detect and block malicious HTTP requests that attempt to exploit this vulnerability.
Remember, the best defense against these types of vulnerabilities is to keep your systems updated and to follow best security practices.

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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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