CVE-2021-1680 in Windows
Summary
by MITRE • 01/13/2021
Diagnostics Hub Standard Collector Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-1651.
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Analysis
by VulDB Data Team • 10/09/2024
The Diagnostics Hub Standard Collector Elevation of Privilege Vulnerability represents a critical security flaw in Microsoft Windows operating systems that allows unprivileged users to escalate their privileges to system level access. This vulnerability specifically affects the diagnostics hub standard collector component within the Windows operating system, which is designed to collect diagnostic information from various system components and applications. The flaw stems from improper privilege checks and access controls within the diagnostic collection service, creating an opportunity for malicious actors to exploit the system's trust model and gain unauthorized administrative access.
The technical nature of this vulnerability resides in the insufficient validation of user permissions within the diagnostics hub standard collector service. When legitimate diagnostic collection requests are processed, the system fails to properly verify whether the requesting user possesses appropriate privileges to access certain system resources or execute privileged operations. This weakness enables attackers to manipulate the diagnostic collection process to execute arbitrary code with elevated privileges, effectively bypassing the standard Windows security model that separates user-level processes from system-level operations. The vulnerability is particularly concerning because it leverages legitimate system functionality to achieve privilege escalation, making detection more challenging for traditional security monitoring tools.
From an operational impact perspective, this vulnerability poses significant risks to enterprise environments where multiple users share systems or where users may have access to potentially compromised devices. The elevation of privilege allows attackers to access sensitive system files, modify registry entries, install malicious software, and potentially establish persistence mechanisms within the target system. The vulnerability affects multiple Windows versions including Windows 10, Windows 11, and various Windows Server editions, making it a widespread concern for organizations that have not yet applied the relevant security patches. The exploitability of this vulnerability is relatively straightforward, requiring only basic user-level access to the system to potentially gain complete system control, which significantly increases the attack surface for organizations.
Organizations should implement immediate mitigations including applying the Microsoft security patches released in their January 2021 security updates, which address the privilege escalation flaw in the diagnostics hub standard collector. Additionally, system administrators should consider implementing enhanced monitoring of diagnostic collection services and user access patterns to detect anomalous behavior that might indicate exploitation attempts. The vulnerability aligns with CWE-276, which covers improper privilege management, and maps to ATT&CK technique T1068, which involves exploiting vulnerabilities to gain system privileges. Security teams should also consider implementing application control policies that restrict access to diagnostic collection utilities and monitor for unusual privilege escalation events within their environments to prevent successful exploitation of this vulnerability.