CVE-2025-0093 in Android
Summary
by MITRE • 08/27/2025
In handleBondStateChanged of AdapterService.java, there is a possible unapproved data access due to a missing permission check. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.
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Analysis
by VulDB Data Team • 09/06/2025
The vulnerability identified as CVE-2025-0093 resides within the Bluetooth subsystem of an Android-based operating system, specifically within the AdapterService.java component that manages Bluetooth adapter state changes. This flaw represents a critical security oversight that allows unauthorized data access through a missing permission validation mechanism. The issue manifests in the handleBondStateChanged method where the system fails to verify appropriate authorization levels before processing bond state changes, creating a pathway for malicious actors to exploit this weakness.
The technical implementation of this vulnerability stems from insufficient input validation and access control enforcement within the Bluetooth framework. When a Bluetooth device attempts to change its bonding state, the system should verify that the requesting entity possesses proper authorization to perform such operations. However, the current implementation lacks this crucial permission check, allowing any application or process with Bluetooth connectivity to potentially access sensitive information related to device pairing and bonding states. This represents a violation of the principle of least privilege and directly contravenes security best practices outlined in industry standards such as CWE-284, which addresses improper access control mechanisms.
The operational impact of this vulnerability extends beyond simple information disclosure, creating potential avenues for more sophisticated attacks. An attacker with user interaction capability could leverage this flaw to gather sensitive pairing information, device identifiers, and authentication tokens that might be used in subsequent attacks. The vulnerability's classification as requiring user interaction indicates that exploitation typically involves social engineering or targeted phishing attacks where users unknowingly initiate Bluetooth operations that trigger the vulnerable code path. This scenario aligns with ATT&CK technique T1059, which encompasses command and scripting interpreter usage, as the attack vector may involve executing malicious code through compromised user interactions.
From a security perspective, this vulnerability undermines the fundamental trust model of Bluetooth communication protocols, where devices are expected to maintain secure pairing relationships and prevent unauthorized access to sensitive information. The lack of proper permission validation creates a persistent risk that remains active as long as the vulnerable system operates, making it particularly concerning for mobile devices that frequently establish and maintain Bluetooth connections. The vulnerability's exploitation requires no additional execution privileges beyond standard Bluetooth access, making it accessible to attackers with minimal privileges and significantly increasing the attack surface. Organizations should implement immediate mitigations including system updates, application sandboxing, and enhanced monitoring of Bluetooth-related activities to prevent unauthorized data access and maintain the integrity of their wireless communication infrastructure.