CVE-2020-0325 in Android
Summary
by MITRE
In NFC, there is a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-145079309
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Analysis
by VulDB Data Team • 09/19/2020
The vulnerability identified as CVE-2020-0325 resides within the Near Field Communication (NFC) subsystem of Android operating systems, specifically affecting Android 11 builds. This issue manifests as a missing bounds check within the NFC implementation, representing a critical security flaw that could potentially compromise system integrity and data confidentiality. The vulnerability falls under the category of memory safety issues, with the specific weakness being a lack of proper input validation that allows for unauthorized data access.
The technical flaw occurs when the NFC service processes incoming data without adequately verifying the boundaries of the data structures it handles. This missing bounds check creates an opportunity for malicious actors to manipulate NFC communication protocols and potentially extract sensitive information from the system. The vulnerability requires system execution privileges for exploitation, indicating that an attacker would need to have elevated access rights or find a way to escalate privileges within the Android environment. The absence of user interaction requirements makes this vulnerability particularly concerning as it can be exploited automatically without requiring any direct user engagement or specific actions from the target.
From an operational impact perspective, this vulnerability creates a significant risk for local information disclosure, potentially allowing attackers to access confidential data that should remain protected within the system's memory space. The exploitation of this flaw could lead to unauthorized access to sensitive information stored within NFC-related processes, including but not limited to authentication credentials, personal data, or system configuration details. The Android security model relies heavily on proper bounds checking to maintain isolation between different system components, and the absence of such checks in the NFC subsystem undermines this fundamental security principle. This vulnerability directly impacts the integrity of the Android security framework and could serve as a stepping stone for more sophisticated attacks.
The mitigation strategies for CVE-2020-0325 should focus on implementing proper bounds checking mechanisms within the NFC subsystem and ensuring that all input data is validated against predefined size limits before processing. System administrators should prioritize applying the relevant security patches released by Google and device manufacturers to address this vulnerability. Additionally, organizations should consider implementing network segmentation and access controls to limit the potential impact of such vulnerabilities. The vulnerability aligns with CWE-129, which addresses issues related to insufficient bounds checking, and may also relate to ATT&CK technique T1068, which covers 'Exploitation for Privilege Escalation' through the use of system-level vulnerabilities. Regular security audits of NFC implementations and other system services should be conducted to identify similar missing bounds checks that could create similar security risks within the Android ecosystem.