CVE-2020-1114 in Windows
Summary
by MITRE
An elevation of privilege vulnerability exists when the Windows kernel fails to properly handle objects in memory, aka 'Windows Kernel Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1087.
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Analysis
by VulDB Data Team • 10/17/2020
This vulnerability represents a critical elevation of privilege flaw within the Windows kernel component that arises from improper handling of memory objects during system operations. The vulnerability specifically affects how the kernel manages memory structures and object references, creating a potential pathway for malicious actors to escalate their privileges from standard user level to system level access. The flaw exists in the kernel-mode execution environment where memory management routines fail to properly validate or sanitize object references, allowing for potential memory corruption or manipulation that could be exploited by attackers.
The technical nature of this vulnerability aligns with common weakness patterns identified in the CWE database, specifically relating to improper handling of memory objects and insufficient validation of system resources. This type of vulnerability falls under the category of kernel-level privilege escalation where attackers can manipulate memory structures to gain unauthorized system access. The Windows kernel's memory management subsystem is designed to handle object references and memory allocation in a secure manner, but this flaw creates a gap in that security model that can be exploited through carefully crafted memory operations.
From an operational impact perspective, successful exploitation of this vulnerability could allow attackers to execute arbitrary code with system-level privileges, potentially leading to complete system compromise. The vulnerability affects Windows operating systems where the kernel fails to properly validate memory object operations, making it particularly dangerous in enterprise environments where multiple users may have access to systems. Attackers could leverage this vulnerability to install persistent backdoors, escalate privileges beyond normal user boundaries, or access sensitive system resources that should be restricted to administrators only.
Security professionals should implement immediate mitigations including applying Microsoft security patches released in response to this vulnerability, monitoring for unusual memory allocation patterns, and implementing enhanced privilege monitoring. The vulnerability demonstrates the critical importance of kernel-level memory management security and aligns with ATT&CK tactics involving privilege escalation and persistence. Organizations should also conduct thorough vulnerability assessments to identify systems running affected Windows versions and ensure proper patch management protocols are in place to prevent exploitation attempts. The remediation approach should include both immediate patch deployment and long-term monitoring of kernel-level activities to detect potential exploitation attempts.