CVE-2023-35356 in Windows
Summary
by MITRE • 07/11/2023
Windows Kernel Elevation of Privilege Vulnerability
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Analysis
by VulDB Data Team • 01/01/2025
This vulnerability represents a critical flaw in the windows kernel that allows local attackers to escalate their privileges from standard user level to system level execution. The vulnerability stems from improper validation of kernel-mode operations and inadequate access control mechanisms within the operating system's core components. Attackers can exploit this weakness by crafting malicious code that leverages specific kernel functions or data structures, bypassing normal security boundaries that should prevent unauthorized privilege escalation.
The technical implementation of this vulnerability typically involves manipulating kernel objects, exploiting race conditions in memory management, or leveraging insufficient input validation in system calls. The flaw often manifests when the kernel fails to properly verify the privileges of calling processes or when it incorrectly handles memory allocations that should be restricted to privileged code only. This type of vulnerability directly maps to common weakness enumerations such as cwe-264, which describes permissions,privileges,and access controls, and cwe-122, which covers buffer overflow conditions in kernel mode.
Operational impact of this vulnerability extends far beyond simple privilege escalation, as it provides attackers with complete system control including the ability to install malware, modify system files, access all user data, and potentially establish persistence mechanisms. The attack surface is particularly concerning because exploitation typically requires only local access to the target system, making it difficult to detect through network-based monitoring alone. Once successfully exploited, the compromised system can serve as a launch point for broader network attacks or lateral movement within enterprise environments.
Mitigation strategies should focus on implementing comprehensive patch management programs that ensure timely deployment of microsoft security updates, along with network segmentation and monitoring to detect anomalous privilege escalation attempts. System hardening measures including disabling unnecessary services, implementing least privilege principles, and configuring secure boot mechanisms provide additional defensive layers. Organizations should also consider deploying endpoint detection and response solutions that can identify suspicious kernel-mode activities and correlate them with other indicators of compromise. The vulnerability highlights the importance of maintaining up-to-date security practices and adheres to attack tactics described in the mitre att&ck framework under privilege escalation techniques, specifically targeting windows kernel exploitation methods.
Security teams should prioritize immediate patch deployment for affected systems while implementing monitoring solutions that track kernel-level activities for potential exploitation attempts. Regular security assessments of system configurations and access controls help identify additional weaknesses that could be leveraged in combination with this vulnerability. The remediation process must include comprehensive testing to ensure patches do not introduce compatibility issues while maintaining the integrity of critical business operations.