CVE-2024-34638 in Samsung
Summary
by MITRE • 09/04/2024
Improper handling of exceptional conditions in ThemeCenter prior to SMR Sep-2024 Release 1 allows local attackers to delete non-preloaded applications.
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Analysis
by VulDB Data Team • 09/06/2024
The vulnerability identified as CVE-2024-34638 represents a critical flaw in the ThemeCenter component of a mobile operating system platform, specifically affecting versions prior to the September 2024 Security Maintenance Release. This issue stems from inadequate exception handling mechanisms that fail to properly manage error conditions during theme application processes. The flaw exists within the system's privilege escalation pathways where local attackers can exploit malformed or improperly validated theme data to execute unauthorized deletion operations on non-preloaded applications. The vulnerability demonstrates a clear breakdown in the system's security model, where the normal flow of theme installation and application management does not adequately verify the integrity and authorization status of operations performed by local users.
The technical root cause of this vulnerability lies in the improper implementation of error recovery protocols within the ThemeCenter subsystem. When the system encounters exceptional conditions during theme processing, such as corrupted theme files or unexpected data structures, the error handling routines fail to properly validate the attacker's privileges or the legitimacy of the requested operations. This improper handling creates a privilege escalation vector where local users can manipulate the system into performing destructive actions against applications that should remain protected. The vulnerability specifically affects non-preloaded applications, suggesting that the system maintains different security contexts or access controls for preloaded versus user-installed applications, but the exception handling mechanism fails to enforce these distinctions properly.
From an operational perspective, this vulnerability poses significant risks to device security and user data integrity. Local attackers who can execute code on a device can leverage this flaw to remove critical applications that may include system utilities, security tools, or user applications that have been installed but are not part of the preloaded system image. The impact extends beyond simple application deletion, as removing certain applications could disrupt system functionality, disable security features, or create recovery challenges for users. This vulnerability particularly affects mobile devices where users may have local access and where the distinction between system applications and user applications is crucial for maintaining device integrity and security posture.
The exploitation of this vulnerability aligns with several ATT&CK tactics including privilege escalation and defense evasion, as attackers can manipulate the system's error handling to perform unauthorized operations while potentially avoiding detection mechanisms that would normally monitor for such activities. This flaw also relates to CWE-707, improper handling of exceptional conditions, which specifically addresses situations where systems fail to properly manage error states that could lead to security implications. The vulnerability demonstrates how seemingly minor implementation details in error handling can create significant security weaknesses, particularly when dealing with components that have elevated privileges or access to system resources. Organizations should prioritize patching this vulnerability through the September 2024 Security Maintenance Release, which includes improved exception handling mechanisms and enhanced validation procedures for theme processing operations. Additionally, system administrators should implement monitoring for unusual application deletion patterns and consider implementing additional access controls to limit the scope of operations that local users can perform on system applications.