CVE-2024-34623 in Notes
Summary
by MITRE • 08/07/2024
Out-of-bounds write in applying connected information in Samsung Notes prior to version 4.4.21.62 allows local attackers to potentially execute arbitrary code with Samsung Notes privilege.
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Analysis
by VulDB Data Team • 08/10/2024
The vulnerability identified as CVE-2024-34623 represents a critical out-of-bounds write flaw discovered in Samsung Notes application prior to version 4.4.21.62. This vulnerability resides within the application's handling of connected information processing, where improper bounds checking allows attackers to write data beyond allocated memory boundaries. The flaw specifically manifests when the application processes connected information, which typically involves linking or associating various data elements within the note-taking environment. Such out-of-bounds write conditions are particularly dangerous because they can lead to memory corruption that attackers can potentially exploit to gain control over the application's execution flow.
The technical implementation of this vulnerability stems from inadequate input validation and memory management within Samsung Notes' connected information processing module. When the application receives or processes connected data elements, it fails to properly validate the size or boundaries of the data being handled, allowing malicious input to overwrite adjacent memory locations. This type of vulnerability falls under the CWE-787 category of out-of-bounds write conditions, which are classified as severe memory corruption vulnerabilities that can result in arbitrary code execution. The vulnerability is particularly concerning because it requires no special privileges to exploit, as it operates within the context of the Samsung Notes application itself, making it a local privilege escalation vector.
From an operational perspective, this vulnerability creates significant risks for Samsung Notes users who may inadvertently encounter maliciously crafted connected information within their notes. Attackers could potentially craft specially formatted notes containing malicious connected data that, when processed by the vulnerable Samsung Notes application, triggers the out-of-bounds write condition. The exploitability of this vulnerability is enhanced by the fact that it operates with the privileges of the Samsung Notes application, which may include access to user data, file system operations, and potentially other system resources depending on the device configuration. The local execution context means that successful exploitation could lead to unauthorized access to sensitive user information stored within the notes application.
The mitigation strategy for this vulnerability centers on updating Samsung Notes to version 4.4.21.62 or later, which contains the necessary patches to address the bounds checking deficiencies in the connected information processing module. Security administrators should prioritize deployment of this update across all affected devices to prevent potential exploitation. Additionally, users should be educated about the risks of opening notes from untrusted sources and the importance of maintaining current software versions. The vulnerability's classification as a local privilege escalation issue aligns with ATT&CK technique T1068 which covers local privilege escalation, and more specifically relates to T1059 which covers command and scripting interpreters, as exploitation may involve manipulating application behavior through crafted data inputs. Organizations should also consider implementing application whitelisting controls and monitoring for unusual application behavior that might indicate exploitation attempts, particularly focusing on memory access patterns that could indicate out-of-bounds write conditions.