CVE-2023-48357 in SC7731E
Summary
by MITRE • 01/18/2024
In vsp driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with System execution privileges needed
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Analysis
by VulDB Data Team • 02/12/2024
The vulnerability identified as CVE-2023-48357 resides within the vsp driver component, representing a critical security flaw that could potentially compromise system integrity and availability. This issue manifests as a potential out of bounds write condition that arises from the absence of proper bounds checking mechanisms within the driver's code structure. The vsp driver, typically responsible for video streaming and processing operations, operates at a privileged level within the system architecture, making this vulnerability particularly concerning for threat actors seeking to escalate their privileges or disrupt system operations.
The technical flaw stems from insufficient input validation and boundary checking within the driver's memory management routines. When processing specific data inputs, the driver fails to verify that write operations remain within allocated memory boundaries, creating an opportunity for memory corruption that could be exploited by malicious actors. This type of vulnerability falls under the CWE-129 category, which specifically addresses issues related to insufficient bounds checking, and represents a direct violation of secure coding practices that should prevent buffer overflows and related memory corruption exploits. The absence of proper validation allows attackers to potentially craft malicious inputs that force the driver to write data beyond its intended memory allocation, leading to unpredictable system behavior.
The operational impact of this vulnerability extends beyond simple denial of service conditions, as it requires system execution privileges to exploit, indicating that an attacker must already have some level of access to the system before leveraging this weakness. This requirement for system execution privileges suggests that the vulnerability could be used as part of a multi-stage attack where initial access has been gained through other means, and the vsp driver represents a valuable target for privilege escalation or persistent access. The local nature of the vulnerability means that exploitation would occur on the same system where the driver is running, limiting the scope to local system compromise but potentially enabling attackers to establish persistent backdoors or escalate privileges to administrator or root levels.
Mitigation strategies for CVE-2023-48357 should prioritize immediate patching of affected systems through vendor-provided updates that implement proper bounds checking mechanisms within the vsp driver. Organizations should also implement monitoring and detection capabilities to identify potential exploitation attempts, particularly focusing on unusual memory access patterns or driver behavior that might indicate boundary violations. The ATT&CK framework categorizes this type of vulnerability under T1068, which involves the exploitation of legitimate credentials and system access for privilege escalation, making it a significant concern for security teams implementing comprehensive threat detection strategies. System administrators should also consider implementing least privilege principles and monitoring for unusual driver activity, while maintaining regular security assessments to identify similar vulnerabilities within other system components that might present similar attack vectors through the same or related driver interfaces.