CVE-2024-34617 in Samsung
Summary
by MITRE • 08/07/2024
Improper handling of insufficient permission in Telephony prior to SMR Aug-2024 Release 1 allows local attackers to configure default Message application.
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Analysis
by VulDB Data Team • 08/13/2024
The vulnerability identified as CVE-2024-34617 represents a critical permission handling flaw within the Telephony subsystem of Android operating systems prior to the SMR August 2024 security release. This issue stems from inadequate validation of user permissions when configuring default messaging applications, creating a significant attack surface for local adversaries who can exploit this weakness to gain unauthorized control over messaging functionality. The vulnerability specifically affects devices running Android versions where the Telephony service fails to properly enforce permission boundaries when processing default application settings.
The technical root cause of this vulnerability lies in the improper validation of permission checks within the telephony framework's message handling components. When local attackers attempt to configure default messaging applications, the system does not adequately verify whether the requesting process possesses the necessary privileges to perform such operations. This flaw allows malicious applications or processes running with limited privileges to manipulate the default messaging application settings, effectively bypassing the intended security controls that should prevent unauthorized configuration changes. The vulnerability manifests as a failure to properly implement access control mechanisms that should restrict messaging application configuration to authorized processes only.
From an operational perspective, this vulnerability enables local attackers to execute a privilege escalation attack by configuring malicious messaging applications as defaults, potentially leading to message interception, data exfiltration, or further system compromise. The impact extends beyond simple configuration changes since default messaging applications often have elevated privileges and access to sensitive user communications. Attackers could leverage this vulnerability to install malware that intercepts SMS messages, monitors communication patterns, or redirects messages to unauthorized recipients, fundamentally compromising the integrity and confidentiality of user messaging data. This represents a significant threat to user privacy and system security.
The vulnerability aligns with CWE-284, which addresses improper access control in software systems, and maps to ATT&CK technique T1068, which covers local privilege escalation through improper permission handling. Organizations should implement immediate mitigations including applying the SMR August 2024 security updates, reviewing and hardening default messaging application configurations, and monitoring for unauthorized changes to messaging application settings. System administrators should also consider implementing additional security controls such as application whitelisting and monitoring for suspicious permission requests to prevent exploitation of this vulnerability. Regular security assessments and vulnerability scanning should be conducted to identify and remediate similar permission handling flaws across the organization's Android device fleet.