CVE-2023-35305 in Windows
Summary
by MITRE • 07/11/2023
Windows Kernel Elevation of Privilege Vulnerability
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Analysis
by VulDB Data Team • 07/03/2026
This vulnerability represents a critical flaw in the windows kernel that allows unprivileged users to escalate their privileges to system level access. The issue stems from improper validation of kernel-mode operations and insufficient access controls within the operating system's core execution environment. Attackers can exploit this weakness to gain elevated permissions without requiring administrative credentials or direct system access, making it particularly dangerous for enterprise environments where multiple user accounts exist.
The technical implementation involves a race condition or improper privilege checking mechanism within kernel components responsible for handling security tokens and access control lists. This flaw typically manifests when legitimate system calls are processed with insufficient validation of the calling process's security context. The vulnerability may be related to improper handling of object managers, kernel memory management routines, or specific privilege elevation APIs that fail to properly verify caller credentials before executing privileged operations. Such issues often align with common weakness enumerations like cwe-284 access control flaws and may present characteristics consistent with attack techniques documented under the attack pattern taxonomy.
The operational impact of this vulnerability extends far beyond simple privilege escalation as it provides attackers with complete system control capabilities including but not limited to data exfiltration, persistence mechanism deployment, and lateral movement throughout network infrastructure. Once exploited, compromised systems can serve as launch points for broader attacks against networked environments, potentially leading to complete organizational compromise. The vulnerability affects multiple windows versions and can be leveraged through various attack vectors including malicious software installation, web-based exploits, or physical access scenarios where attackers can execute code on target systems.
Mitigation strategies should include immediate deployment of microsoft security updates and patches addressing the specific kernel vulnerability while implementing additional defensive measures such as user access control enforcement, system hardening procedures, and network segmentation to limit potential attack surfaces. Organizations must also consider implementing behavioral monitoring solutions that can detect anomalous privilege escalation activities and ensure proper system administration practices including regular security assessments and privilege reviews. The vulnerability highlights the critical importance of maintaining up-to-date security patches and demonstrates how kernel-level flaws can create foundational security risks that compromise entire computing environments through relatively simple exploitation techniques.