CVE-2025-48906 in HarmonyOS
Summary
by MITRE • 06/06/2025
Authentication bypass vulnerability in the DSoftBus module Impact: Successful exploitation of this vulnerability may affect availability.
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Analysis
by VulDB Data Team • 06/06/2025
The CVE-2025-48906 vulnerability represents a critical authentication bypass flaw within the DSoftBus module, a component that typically handles secure communication and service provisioning in embedded systems and IoT devices. This module serves as a foundational element for device-to-device communication protocols, often implementing authentication mechanisms to ensure only authorized entities can access system resources. The vulnerability specifically targets the authentication process, potentially allowing attackers to circumvent established security controls without proper credentials or authorization. Such a flaw fundamentally undermines the security model of the affected systems, creating a pathway for unauthorized access that could escalate to full system compromise.
The technical nature of this vulnerability stems from improper validation of authentication credentials within the DSoftBus module implementation. Attackers can exploit this weakness by crafting specific network requests or communication sequences that bypass the normal authentication flow. This may involve manipulating protocol messages, exploiting race conditions in authentication state handling, or leveraging improper input validation that allows malicious payloads to be accepted as legitimate authentication tokens. The vulnerability likely resides in the module's handling of session management, credential verification, or access control decisions, creating a persistent entry point that remains active throughout the module's operation. According to CWE classification systems, this vulnerability aligns with CWE-287 which addresses improper authentication issues, and potentially CWE-305 which covers authentication bypass through multiple attempts or flawed authentication logic.
The operational impact of successfully exploiting CVE-2025-48906 extends beyond simple unauthorized access to encompass significant availability and integrity risks. While the primary impact description mentions availability concerns, the authentication bypass can enable attackers to disrupt service availability through denial-of-service attacks, manipulate system configurations, or gain access to sensitive data repositories. The DSoftBus module's role in facilitating communication between system components means that exploitation could lead to cascading failures across interconnected services. Attackers might leverage this vulnerability to disable security features, modify communication protocols, or redirect system resources to malicious endpoints, effectively compromising the entire operational ecosystem that relies on this module for secure communication.
Mitigation strategies for CVE-2025-48906 should prioritize immediate patch deployment from vendors, as this vulnerability represents a critical threat to system security. Organizations must conduct comprehensive vulnerability assessments to identify all devices and systems utilizing the affected DSoftBus module, particularly in industrial control systems, IoT deployments, and embedded platforms where such modules are commonly implemented. Network segmentation and monitoring should be enhanced to detect anomalous communication patterns that might indicate exploitation attempts. The implementation of additional authentication layers, such as mutual TLS authentication or hardware-based security modules, can provide defense-in-depth measures. According to ATT&CK framework considerations, this vulnerability maps to T1078 (Valid Accounts) and T1566 (Phishing) tactics, as attackers might use compromised credentials or exploit this bypass to establish persistent access. System administrators should also implement continuous monitoring for unauthorized access attempts and establish incident response procedures specifically addressing authentication bypass scenarios to minimize potential damage from exploitation attempts.