CVE-2025-3546: Critical Command Injection Vulnerability in H3C Magic Series

Overview

The cybersecurity scene is once again being threatened by a critical vulnerability. This time, the culprit is the H3C Magic series, specifically models NX15, NX30 Pro, NX400, R3010, and BE18000 up to V100R014. This vulnerability, identified as CVE-2025-3546, exposes these systems to potential command injection attacks, leading to possible system compromise or data leakage. The severity of this vulnerability stems from the potential for unauthorized control of a system, which could lead to severe consequences for organizations and individuals alike.

Vulnerability Summary

CVE ID: CVE-2025-3546
Severity: Critical (8.0)
Attack Vector: Local network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

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
H3C Magic BE18000 | up to V100R014

How the Exploit Works

The vulnerability lies within the function FCGI_CheckStringIfContainsSemicolon of the file /api/wizard/getLanguage of the component HTTP POST Request Handler. A successful exploit is achieved by manipulating the HTTP POST request to inject malicious commands. These commands are then executed by the system, allowing an attacker to potentially gain control over the system and compromise sensitive data.

Conceptual Example Code

The following is a conceptual example of how the vulnerability might be exploited. This is a simple HTTP POST request, where a malicious payload is embedded in the request:

POST /api/wizard/getLanguage HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "language": "en; rm -rf /" }

In this example, the semicolon (;) is used to separate the valid language parameter “en” and the malicious command “rm -rf /”, which if executed, would delete all files in the system.
Please note that this is a hypothetical example, and actual attack payloads would likely be more sophisticated and tailored to the specific target environment.

Mitigation Guidance

To mitigate this vulnerability, it is recommended to apply the vendor patch as soon as it becomes available. In the meantime, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation by filtering out suspicious and potentially harmful traffic.