CVE-2017-2133 in KX-HJB1000
Summary
by MITRE
SQL injection vulnerability in Panasonic KX-HJB1000 Home unit devices with firmware GHX1YG 14.50 or HJB1000_4.47 allows authenticated attackers to execute arbitrary SQL commands via unspecified vectors.
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Analysis
by VulDB Data Team • 01/19/2021
The vulnerability identified as CVE-2017-2133 represents a critical SQL injection flaw within Panasonic KX-HJB1000 Home unit devices, specifically affecting firmware versions GHX1YG 14.50 and HJB1000_4.47. This security weakness resides in the device's handling of authenticated user input, creating a pathway for malicious actors to manipulate database queries through unspecified attack vectors. The vulnerability's classification as a SQL injection issue places it squarely within the scope of CWE-89, which defines the weakness as the improper handling of SQL commands where user-supplied data is directly incorporated into database queries without adequate sanitization or parameterization.
The technical implementation of this vulnerability stems from inadequate input validation mechanisms within the device's web interface or API endpoints that process user authentication and administrative functions. When authenticated users interact with the device's management interface, maliciously crafted input can bypass normal security controls and inject arbitrary SQL commands into the underlying database engine. This flaw operates under the premise that the device's firmware fails to properly escape or parameterize user-supplied data before incorporating it into SQL query structures, allowing attackers to manipulate the intended execution flow of database operations.
From an operational perspective, this vulnerability presents a significant risk to the security posture of organizations utilizing Panasonic KX-HJB1000 devices in their communication infrastructure. The authenticated nature of the attack means that adversaries must first establish valid credentials to exploit the flaw, but once achieved, they can execute arbitrary SQL commands with the privileges of the database user account. This capability enables attackers to extract sensitive information from the device's database, modify configuration parameters, potentially escalate privileges, or even corrupt database structures. The impact extends beyond simple data theft, as the vulnerability could allow for complete compromise of the device's administrative functions and potentially provide a foothold for further network infiltration.
The exploitation of this vulnerability aligns with tactics described in the ATT&CK framework under the T1071.004 technique for application layer protocol manipulation, where adversaries manipulate database interactions to achieve unauthorized access. Organizations should consider this vulnerability as part of a broader attack surface assessment, particularly in environments where these devices serve as part of critical communication infrastructure. The vulnerability's presence in multiple firmware versions indicates a systemic issue within the device's codebase rather than an isolated incident, suggesting that proper input sanitization and parameterization practices were not consistently applied across the product line.
Mitigation strategies should prioritize immediate firmware updates from Panasonic to address the identified SQL injection vulnerability, while also implementing network segmentation to limit access to these devices to authenticated administrative users only. Organizations should conduct thorough vulnerability assessments of their communication infrastructure to identify similar issues in other devices, as this flaw represents a pattern of insufficient input validation that may exist in other components. Additionally, implementing database query monitoring and logging mechanisms can help detect anomalous SQL command execution patterns that may indicate exploitation attempts. The vulnerability serves as a reminder of the critical importance of secure coding practices and proper input validation, particularly in devices that handle sensitive administrative functions and user data within network infrastructure environments.