CVE-2024-20847 in Samsung
Summary
by MITRE • 04/02/2024
Improper Access Control vulnerability in StorageManagerService prior to SMR Apr-2024 Release 1 allows local attackers to read sdcard information.
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Analysis
by VulDB Data Team • 04/02/2024
The vulnerability identified as CVE-2024-20847 represents a critical improper access control flaw within the StorageManagerService component of Android systems. This weakness exists in versions prior to the SMR Apr-2024 Release 1 and specifically affects the handling of sdcard information access controls. The vulnerability stems from insufficient validation of permissions and access restrictions when processing storage-related requests, creating a pathway for unauthorized data exposure.
The technical implementation of this flaw involves the StorageManagerService failing to properly enforce access control mechanisms when processing requests for sdcard information. Local attackers can exploit this weakness to bypass intended security boundaries and gain unauthorized access to sensitive storage data. The vulnerability operates at the system level where proper authorization checks are missing or inadequately implemented, allowing malicious processes running with limited privileges to escalate their access and retrieve sdcard metadata and potentially sensitive user data.
From an operational perspective, this vulnerability presents significant risks to user privacy and data security. Attackers with local access to a device can exploit this flaw to read sdcard information without proper authorization, potentially exposing personal files, application data, and other sensitive information stored on removable storage media. The impact extends beyond simple data reading as it undermines the fundamental security model of Android's storage management system, creating potential for further exploitation and privilege escalation attacks.
The vulnerability aligns with CWE-284, which describes improper access control, and relates to ATT&CK technique T1059 which covers command and scripting interpreter. This weakness creates opportunities for attackers to move laterally within the system and potentially access additional resources. The affected StorageManagerService component represents a critical attack surface where proper access controls should prevent unauthorized access to storage information.
Mitigation strategies should prioritize immediate deployment of the SMR Apr-2024 Release 1 patch which addresses the access control implementation. Organizations should also implement additional security monitoring to detect unauthorized access attempts to storage resources and consider restricting local application permissions where possible. System administrators should conduct thorough security assessments to identify any applications that might be exploiting this vulnerability and implement proper access control policies that align with the principle of least privilege. Regular security updates and vulnerability assessments remain essential for maintaining system integrity against similar access control weaknesses.