CVE-2023-30702 in SSHDCPAPP TA
Summary
by MITRE • 08/10/2023
Stack overflow vulnerability in SSHDCPAPP TA prior to "SAMSUNG ELECTONICS, CO, LTD. - System Hardware Update - 7/13/2023" in Windows Update for Galaxy book Go, Galaxy book Go 5G, Galaxy book2 Go and Galaxy book2 Pro 360 allows local attacker to execute arbitrary code.
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Analysis
by VulDB Data Team • 09/02/2023
This vulnerability represents a critical stack overflow condition within the SSHDCPAPP Trusted Application component that operates within the Samsung Galaxy Book series devices running Windows. The flaw exists in the Trusted Application framework that handles display control functionalities, specifically affecting models including the Galaxy Book Go, Galaxy Book Go 5G, Galaxy Book2 Go, and Galaxy Book2 Pro 360. The vulnerability manifests as a buffer overflow during the processing of malformed input data within the application's stack memory allocation, creating a potential entry point for privilege escalation attacks. The affected Trusted Application resides in the system hardware update component that manages display protocols and hardware interactions, making it a prime target for local attackers seeking to elevate their privileges within the system.
The technical exploitation of this vulnerability occurs when the SSHDCPAPP TA receives unvalidated input data that exceeds the allocated stack buffer space, causing a stack corruption condition that can be leveraged to overwrite return addresses and execute arbitrary code with the privileges of the Trusted Application. This represents a classic stack-based buffer overflow scenario that aligns with CWE-121, which specifically addresses stack-based buffer overflow conditions where insufficient bounds checking allows attackers to overwrite adjacent memory locations. The vulnerability's impact is amplified by the Trusted Application's elevated privileges, as it typically operates with system-level access and hardware control capabilities that would normally be restricted to authorized system components.
The operational implications of this vulnerability extend beyond simple code execution, as it provides local attackers with a mechanism to bypass normal security controls and gain deeper system access. Attackers could potentially leverage this vulnerability to install malicious software, modify system configurations, or establish persistent backdoors within the device's operating environment. The vulnerability's presence in the system hardware update component means that exploitation could occur during normal system operations when display protocols are processed, making detection and prevention more challenging. This aligns with ATT&CK technique T1059.007 for command and scripting interpreter and T1547.001 for registry run keys, as successful exploitation would likely involve establishing persistence mechanisms and executing malicious code through system-level interfaces.
Samsung addressed this vulnerability through their scheduled System Hardware Update released on July 13, 2023, which included patched versions of the SSHDCPAPP Trusted Application component. The update specifically modified the input validation mechanisms within the application to prevent buffer overflow conditions and implemented proper bounds checking for all data processing operations. Organizations and users should immediately apply this update to mitigate the risk of exploitation, as the vulnerability provides a direct path to privilege escalation and system compromise. Security teams should monitor for potential exploitation attempts and implement additional controls such as application whitelisting and system integrity monitoring to detect unauthorized modifications to the Trusted Application components. The vulnerability demonstrates the critical importance of validating all inputs within trusted application environments and highlights the need for comprehensive security testing of system-level components that handle hardware interactions and privileged operations.