CVE-2025-2728

Vulnerability Remediation/Mitigation Strategy: CVE-2025-2728 - H3C Magic NX30 Pro and NX400 Command Injection

This document outlines a remediation and mitigation strategy for CVE-2025-2728, a critical command injection vulnerability found in H3C Magic NX30 Pro and NX400 routers.

1. Vulnerability Description:

  • Vulnerability: Command Injection
  • Affected Products: H3C Magic NX30 Pro and Magic NX400
  • Affected Versions: Up to V100R014
  • Vulnerable File: /api/wizard/getNetworkConf
  • Attack Vector: Remote
  • Description: The vulnerability allows a remote attacker to inject arbitrary commands into the system via the /api/wizard/getNetworkConf endpoint. This could lead to complete system compromise.
  • Disclosure Source: VulDB
  • Vendor Response: The vendor (H3C) was contacted but did not respond.

2. Severity:

  • CVSS v3 Score: 9.0 (Critical)
    • Vector: AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H (Network, Low Attack Complexity, No Privileges Required, No User Interaction, Changed Scope, High Confidentiality Impact, High Integrity Impact, High Availability Impact)
  • Impact:
    • Confidentiality: High - Unauthorized access to sensitive data.
    • Integrity: High - Ability to modify system files and configurations.
    • Availability: High - Potential for denial-of-service (DoS) or complete system shutdown.
  • Overall Assessment: Critical due to the potential for complete remote system compromise without authentication.

3. Known Exploit Information:

  • Exploit Status: Publicly known. While a specific exploit is not explicitly provided in this summary, the CVE designation and “command injection” vulnerability type strongly suggest that proof-of-concept exploits are likely to be developed and released soon, if not already available.
  • Exploit Ease: Likely easy to exploit, given the “Low Attack Complexity” rating in the CVSS vector. Command injection vulnerabilities are often straightforward to exploit.

4. Remediation Strategy:

Immediate Actions (Short-Term Mitigation):

  • Isolate Affected Devices: If possible, immediately isolate affected H3C Magic NX30 Pro and NX400 routers from the network. This prevents potential attackers from reaching the vulnerable devices. If complete isolation is not feasible, restrict access to the routers to only trusted and necessary personnel.
  • Network Segmentation: Implement network segmentation to limit the blast radius of a potential attack. Place the routers in a separate VLAN with limited connectivity to other critical network segments.
  • Monitor Network Traffic: Implement network intrusion detection systems (IDS) and intrusion prevention systems (IPS) rules to detect and block malicious traffic targeting the /api/wizard/getNetworkConf endpoint. Look for suspicious HTTP requests and command execution patterns. Configure logging and alerting for these events.
  • Web Application Firewall (WAF) Rules: If a WAF is in place, create or update rules to block malicious requests targeting the vulnerable endpoint. Implement input validation and sanitization techniques to prevent command injection.

Long-Term Actions (Permanent Fix):

  • Firmware Update (Preferred Solution): The primary and most effective remediation is to install a patched firmware version provided by H3C. Check the H3C website and support channels regularly for firmware updates that address CVE-2025-2728. Apply the update immediately after its release. Note: As the vendor hasn’t responded as of the provided information, this needs to be actively monitored.
  • Vendor Contact (Continued Efforts): Continue attempting to contact H3C to request a security patch and updates regarding their remediation plans.
  • Alternative Routers (If No Patch Available): If a firmware patch is not available within a reasonable timeframe, strongly consider replacing the vulnerable H3C routers with alternative devices from a more responsive vendor. Prioritize vendors with a strong track record of security support and timely patch releases.
  • Security Hardening (General Practices): Implement general security hardening measures on all network devices, including:
    • Disable unnecessary services and features.
    • Change default passwords to strong, unique passwords.
    • Enforce strong password policies.
    • Enable logging and auditing.
    • Keep firmware up to date with the latest security patches (for all network devices).

5. Validation:

  • Post-Patch Verification: After applying a firmware patch, carefully verify that the vulnerability has been addressed. This can be done by attempting to exploit the vulnerability using the same methods that were used to identify it. Perform penetration testing to confirm that the router is no longer susceptible to command injection.
  • Log Analysis: Review system logs for any suspicious activity or error messages that may indicate a failed patching process or continued exploitation attempts.

6. Communication:

  • Internal Communication: Communicate the vulnerability, its severity, and the remediation steps to all relevant personnel, including IT staff, security teams, and network administrators.
  • External Communication: If required by compliance regulations or data breach notification laws, consider communicating the vulnerability to affected users or customers.

7. Disclaimer:

This remediation strategy is based on the information available at the time of writing. The effectiveness of these measures may vary depending on the specific configuration of your network and the skill of the attacker. It is recommended to consult with security experts to develop a comprehensive security plan that meets your specific needs. Continuous monitoring and vulnerability assessments are essential for maintaining a strong security posture. Given the vendor’s lack of response, proactive monitoring and vigilance are crucial.

Assigner

Date

  • Published Date: 2025-03-25 02:31:05
  • Updated Date: 2025-03-25 03:15:17

More Details

CVE-2025-2728