CVE-2023-35360 in Windows
Summary
by MITRE • 07/11/2023
Windows Kernel Elevation of Privilege Vulnerability
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Analysis
by VulDB Data Team • 07/30/2023
This vulnerability represents a critical security flaw in the windows kernel that allows malicious actors to escalate their privileges from standard user level to system level execution. The flaw resides within the kernel's privilege checking mechanisms and memory management subsystems, where insufficient validation permits unauthorized code execution with elevated permissions. Attackers can exploit this weakness by crafting specially designed payloads that manipulate kernel structures or leverage race conditions during privilege transitions. The vulnerability typically manifests when legitimate system processes attempt to perform operations that should be restricted to administrators or system components.
The technical implementation of this vulnerability involves exploiting memory corruption patterns within kernel mode operations, often through buffer overflows or use-after-free conditions in kernel drivers. Attackers can manipulate kernel data structures to bypass mandatory access controls and security policies that normally prevent privilege escalation. The flaw may also involve improper handling of kernel objects or insufficient validation of user-mode inputs when processed within kernel context. This allows adversaries to execute arbitrary code with system-level privileges, potentially leading to complete system compromise.
The operational impact of this vulnerability extends far beyond simple privilege escalation, as it provides attackers with unrestricted access to all system resources including sensitive data storage, network interfaces, and hardware components. Once elevated to kernel level, malicious actors can establish persistent backdoors, modify system files, disable security mechanisms, and exfiltrate confidential information without detection. The vulnerability affects multiple windows versions and can be exploited through various attack vectors including malicious software installation, web-based attacks, or physical access scenarios. Organizations may experience complete data breaches, system downtime, and regulatory compliance violations when this vulnerability is successfully exploited.
Mitigation strategies should focus on immediate patch deployment from microsoft security updates and implementing additional defense-in-depth measures such as kernel mode code integrity enforcement, application whitelisting policies, and enhanced monitoring for suspicious privilege escalation attempts. System administrators should disable unnecessary services and driver loading capabilities while enforcing strict access controls and privilege separation. Regular security assessments and vulnerability scanning should be conducted to identify potential exploitation vectors, with particular attention to kernel-level activities and process privilege changes. Network segmentation and endpoint protection solutions can help detect anomalous behavior patterns associated with privilege escalation attempts, while adherence to secure coding practices and regular security training for developers can reduce similar vulnerabilities in future releases. This vulnerability aligns with cwe-264 privilege escalation weaknesses and may map to attack techniques within the mitre att&ck framework under privilege escalation and persistence domains.