CVE-2023-51587 in ViewPower Pro
Summary
by MITRE • 05/03/2024
Voltronic Power ViewPower getModbusPassword Missing Authentication Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Voltronic Power ViewPower. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the getModbusPassword method. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-22073.
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Analysis
by VulDB Data Team • 07/09/2025
The CVE-2023-51587 vulnerability represents a critical information disclosure flaw in Voltronic Power ViewPower systems that exposes stored credentials through the getModbusPassword method. This vulnerability falls under the category of improper authentication as defined by CWE-287, where the system fails to properly verify the identity of users attempting to access sensitive information. The flaw exists within the Modbus protocol implementation of the power management software, creating an attack surface that allows unauthenticated remote exploitation. The vulnerability specifically targets the authentication mechanism that should protect access to sensitive credential storage, making it particularly dangerous as it eliminates any barrier between potential attackers and stored password information.
The technical implementation of this vulnerability stems from the absence of proper authentication checks within the getModbusPassword method, which serves as a direct interface to retrieve stored Modbus credentials. This method operates without requiring any form of user verification, authentication tokens, or session management controls that would normally prevent unauthorized access to sensitive data. The flaw creates a persistent exposure where any remote attacker can simply invoke the method without providing credentials, username, or any form of authentication verification. This represents a fundamental failure in the principle of least privilege and demonstrates a critical gap in the security architecture of the affected systems. The vulnerability aligns with ATT&CK technique T1552.001 for credentials from password files and T1071.004 for application layer protocols, as it enables unauthorized access to stored credentials through a network-based interface.
The operational impact of this vulnerability extends beyond simple credential disclosure, creating a significant risk for organizations relying on Voltronic Power ViewPower systems for critical infrastructure management. Attackers can leverage this vulnerability to gain access to Modbus credentials that may be used to control power distribution systems, potentially leading to service disruption, unauthorized access to critical facilities, or even physical security breaches. The remote exploitation capability means that attackers can target these systems from anywhere on the network without requiring physical access or prior credentials, making the attack surface extremely broad. Organizations may face compliance violations under regulations such as NIST SP 800-53 controls CM-7 and SI-7, as the vulnerability represents a failure to implement proper access controls and information protection mechanisms. The disclosure of Modbus credentials could enable attackers to manipulate power systems, potentially causing cascading failures or creating unauthorized access points within facility management networks.
Mitigation strategies for CVE-2023-51587 should focus on immediate network segmentation and access control measures to limit exposure of affected systems. Organizations must implement proper authentication controls at the application level, ensuring that the getModbusPassword method requires valid credentials before returning any stored information. The vulnerability highlights the importance of applying security patches and updates from Voltronic Power as soon as they become available, as this represents a known issue that has been documented in the ZDI database under reference ZDI-CAN-22073. Network monitoring should be enhanced to detect unusual access patterns to Modbus interfaces, and organizations should consider implementing additional authentication layers such as multi-factor authentication for systems that cannot be immediately patched. Security teams should conduct comprehensive vulnerability assessments to identify all systems running Voltronic Power ViewPower and ensure that proper access controls are implemented across all Modbus-related interfaces to prevent similar authentication bypass vulnerabilities.