CVE-2025-26793

Remediation/Mitigation Strategy for CVE-2025-26793

This document outlines the remediation and mitigation strategy for CVE-2025-26793, a vulnerability affecting Hirsch (formerly Identiv and Viscount) Enterphone MESH devices.

1. Vulnerability Description

  • CVE ID: CVE-2025-26793
  • Description: The Web GUI configuration panel of Hirsch Enterphone MESH devices (through version 2024) ships with default credentials (“freedom”/“viscount”). The administrator is not prompted to change these credentials upon initial configuration, and the process to change them is complex. This allows attackers to use these default credentials over the internet to access the system via mesh.webadmin.MESHAdminServlet.
  • Affected Product: Hirsch (formerly Identiv and Viscount) Enterphone MESH (versions through 2024)
  • Impact: Unauthorized access to the Enterphone MESH system, potentially leading to:
    • Access to building residents’ Personally Identifiable Information (PII).
    • Control of building access (e.g., unlocking doors).
    • Denial of service (DoS) by disrupting the Enterphone system.
    • Potential for further exploitation of connected systems.

2. Severity Assessment

  • CVSS Score: 10.0 (Based on the provided data, though a full CVSS calculation may yield a slightly different result).
  • Severity: Critical
  • Justification: The vulnerability is easily exploitable (default credentials), allows for remote access, and results in significant impact including data breach (PII) and control of physical security systems.

3. Known Exploits

  • Exploitability: Highly Exploitable. Attackers can easily use the default credentials “freedom”/“viscount” to log in to the web administration panel via mesh.webadmin.MESHAdminServlet. Publicly available information about the default credentials increases the risk of widespread exploitation.
  • Observed Exploitation: While specific publicly disclosed instances of exploitation may not be available, the existence of default credentials makes it highly likely that the vulnerability is actively being exploited, or will be soon.

4. Remediation Strategy

The primary goal of this strategy is to eliminate the risk posed by CVE-2025-26793.

  • Immediate Actions (within 24 hours):

    1. Change Default Credentials: Immediately change the default username (“freedom”) and password (“viscount”) on all Hirsch Enterphone MESH devices. Use strong, unique passwords that meet complexity requirements (minimum length, mix of character types). Document the new credentials securely. Refer to the Hirsch documentation for the correct procedure. If the documented procedure is complex as described in the CVE, then the vendor needs to provide a simpler method.
    2. Network Segmentation/Firewall Rules: Implement firewall rules to restrict access to the mesh.webadmin.MESHAdminServlet interface. Limit access to only authorized IP addresses or network segments. Consider VPN access for remote administration instead of exposing the interface directly to the internet.
    3. Monitor for Suspicious Activity: Implement monitoring and logging of access attempts to the Enterphone MESH web interface. Look for failed login attempts, attempts to access mesh.webadmin.MESHAdminServlet from unexpected IP addresses, and any unusual activity.
    4. Vulnerability Scanning: Perform vulnerability scans of the Enterphone MESH devices to confirm that the default credentials have been changed and to identify any other potential vulnerabilities.

  • Short-Term Actions (within 1 week):

    1. Enforce Strong Password Policies: Implement policies that require the use of strong passwords and periodic password changes for all administrator accounts on the Enterphone MESH system.
    2. Security Awareness Training: Conduct security awareness training for administrators and personnel responsible for managing the Enterphone MESH system, emphasizing the importance of changing default credentials and secure password practices.
    3. Vendor Contact: Contact Hirsch support to inquire about any available patches or updates to address the vulnerability and to understand their long-term roadmap for addressing security issues in the Enterphone MESH system. Push for a simpler credential update process.
    4. Review Access Controls: Thoroughly review access controls to the Enterphone MESH system, ensuring that only authorized personnel have access to sensitive features and data. Implement the principle of least privilege.

  • Long-Term Actions (within 1 month):

    1. Software Updates/Patching: Apply any available patches or software updates released by Hirsch to address the vulnerability. Establish a process for regularly checking for and applying updates.
    2. Implement Multi-Factor Authentication (MFA): If supported by the Enterphone MESH system, implement multi-factor authentication for all administrative accounts.
    3. Penetration Testing: Consider conducting a penetration test of the Enterphone MESH system to identify any remaining vulnerabilities and weaknesses.
    4. Incident Response Plan: Update your incident response plan to include specific procedures for responding to incidents involving the Enterphone MESH system, including potential data breaches or unauthorized access.

5. Mitigation Strategies

If immediate remediation is not possible, the following mitigation strategies should be implemented:

  • Network Segmentation: Isolate the Enterphone MESH system from the rest of the network to limit the potential impact of a successful attack.
  • Web Application Firewall (WAF): Deploy a WAF to inspect and filter traffic to the mesh.webadmin.MESHAdminServlet interface. Configure the WAF to block requests that attempt to exploit the vulnerability or use the default credentials.
  • Intrusion Detection System (IDS): Implement an IDS to monitor for suspicious activity on the Enterphone MESH system and alert administrators to potential attacks.

6. Ongoing Monitoring

Continuous monitoring is critical for detecting and responding to potential attacks:

  • Log Analysis: Regularly analyze logs from the Enterphone MESH system, firewalls, and intrusion detection systems for suspicious activity.
  • Security Information and Event Management (SIEM): Integrate logs from the Enterphone MESH system into a SIEM platform to correlate events and identify potential security incidents.
  • Vulnerability Scanning: Periodically perform vulnerability scans of the Enterphone MESH system to identify any new vulnerabilities.

7. Communication

  • Establish a communication plan to keep stakeholders informed about the vulnerability and the remediation efforts.
  • Communicate with building residents about the potential risk and the steps being taken to protect their data and security.

8. Disclaimer

This remediation and mitigation strategy is based on the information provided and is intended as a guideline. It is important to consult with security professionals and Hirsch support to develop a comprehensive plan that is tailored to your specific environment and risk profile.

Assigner

Date

  • Published Date: 2025-02-15 15:15:24
  • Updated Date: 2025-02-15 15:15:24

More Details

CVE-2025-26793