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CVE-2025-26793: Critical Vulnerability in Hirsch Enterphone MESH

A critical vulnerability in the Hirsch Enterphone MESH web GUI allows attackers to exploit default credentials, leading to unauthorized access to sensitive resident data. Immediate action is required to mitigate risks.

CRITICALCVSS 9.3 · Published February 15, 2025

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The vulnerability identified as CVE-2025-26793 affects the Web GUI configuration panel of Hirsch Enterphone MESH, which is a system used for access control in residential buildings. This vulnerability allows attackers to exploit default credentials that are shipped with the system, specifically the username 'freedom' and password 'viscount'. Notably, the administrator is not prompted to change these credentials during initial configuration. As a result, changing the credentials requires multiple steps, which can lead to oversight and retention of these insecure defaults. Attackers can leverage these credentials over the Internet to gain unauthorized access to numerous apartment buildings across Canada and the U.S., potentially obtaining personally identifiable information (PII) of building residents.

This vulnerability has been classified as critical due to its CVSS score of 9.3. The high severity rating underscores the significant risk to organizations that rely on this system for access control. With attackers capable of exploiting this vulnerability remotely and without requiring privileges or user interaction, the potential for data breaches and privacy violations is substantial. Organizations using Hirsch Enterphone MESH must prioritize immediate remediation actions to secure their systems.

As of now, this vulnerability is marked as 'Deferred' with no public exploits reported. Nevertheless, the implications of unaddressed default credentials present a critical security challenge that could be exploited if not mitigated promptly. Organizations should implement strong password policies and ensure that default credentials are changed during the initial setup of any system.

Organizations should prioritize patching immediately. Failing to address this vulnerability could lead to significant data exposure and compromise residents' safety.

Vulnerability Details

The official CVE description states: 'The Web GUI configuration panel of Hirsch (formerly Identiv and Viscount) Enterphone MESH through 2024 ships with default credentials (username freedom, password viscount). The administrator is not prompted to change these credentials on initial configuration, and changing the credentials requires many steps. Attackers can use the credentials over the Internet via mesh.webadmin.MESHAdminServlet to gain access to dozens of Canadian and U.S. apartment buildings and obtain building residents' PII. NOTE: the Supplier's perspective is that the "vulnerable systems are not following manufacturers' recommendations to change the default password."'

The vulnerability type is classified under CWE-1393. The CVSS score is 9.3, indicating a critical severity level. This vulnerability affects all versions of Hirsch Enterphone MESH prior to a vendor patch.

Technical Analysis

The root cause of this vulnerability lies in the failure to enforce secure credential management practices. The default credentials are not changed during the initial setup process, leading to a common security oversight. The attack vector is network-based, allowing remote exploitation without the need for physical access to the system.

The attack complexity is low, as attackers do not require any special privileges to exploit this vulnerability. Furthermore, no user interaction is necessary for an attacker to gain access. The confidentiality impact is rated as high due to the potential exposure of sensitive PII. The integrity impact is also rated as high, as attackers could alter system settings or gain unauthorized control over access mechanisms.

Risk & Impact Analysis

The risks associated with CVE-2025-26793 are significant for organizations that deploy the Hirsch Enterphone MESH system for access control. The presence of default credentials that are not changed poses a critical threat, as attackers can gain unauthorized access to residential facilities and potentially exploit sensitive data. The blast radius could extend to numerous buildings, impacting many residents' personal information and privacy.

Given the CVSS score of 9.3, organizations should address this vulnerability in their priority patch cycle. The urgency is further amplified by the potential for widespread exploitation if these default credentials remain unchanged.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

All versions of Hirsch Enterphone MESH prior to a vendor patch are affected by this vulnerability.

Mitigation & Remediation

Organizations should take immediate steps to mitigate this vulnerability. The first step is to change the default credentials to strong, unique passwords. Following this, it is crucial to educate users about the importance of password management and to implement policies that enforce regular password changes.

If a patch is not currently available, organizations should consider applying configuration hardening measures, such as restricting access to the web GUI from untrusted networks. Regular monitoring of access logs can also help identify unauthorized access attempts.

For comprehensive security checks, organizations may wish to engage in penetration testing to validate the effectiveness of their security measures.

Detection Guidance

Organizations should monitor logs for any unauthorized access attempts and review changes to user credentials. Behavioral anomalies, such as access from unexpected IP addresses, should be flagged for further investigation.

AppSecure Threat Intelligence Insight

The long-term significance of CVE-2025-26793 highlights the critical importance of secure configuration in access control systems. This vulnerability serves as a reminder for organizations to prioritize security during the setup phase of any system. By analyzing patterns in vulnerabilities like this, security teams can identify potential weaknesses before they are exploited.

Organizations should consider implementing a vulnerability management program to ensure that similar vulnerabilities are promptly addressed in the future.

In the context of increasing cyber threats, this incident underscores the necessity for organizations to adopt a proactive approach to security, including regular penetration testing methodology to identify and remediate potential risks.

Ultimately, organizations must prioritize continuous security validation to stay ahead of emerging threats.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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