CVE-2020-8345 in HardwareScan Plugin
Summary
by MITRE • 10/15/2020
A DLL search path vulnerability was reported in the Lenovo HardwareScan Plugin for the Lenovo Vantage hardware scan feature prior to version 1.0.46.11 that could allow escalation of privilege.
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Analysis
by VulDB Data Team • 11/20/2020
The vulnerability identified as CVE-2020-8345 represents a critical DLL search path vulnerability within the Lenovo HardwareScan Plugin component of Lenovo Vantage software. This flaw existed in versions prior to 1.0.46.11 and specifically targeted the hardware scan feature that is integral to Lenovo's system management suite. The vulnerability stems from improper handling of dynamic link library loading sequences, creating opportunities for malicious code execution with elevated privileges. The affected plugin operates with elevated permissions during hardware scanning operations, making it an attractive target for privilege escalation attacks. This vulnerability directly aligns with CWE-426, which addresses the execution of untrusted code through insecure library loading mechanisms.
The technical exploitation of this vulnerability occurs when the Lenovo HardwareScan Plugin attempts to load required dynamic link libraries without properly validating the search path. Attackers can manipulate the system's library loading behavior by placing malicious DLL files in directories that are searched before the legitimate library locations. This creates a scenario where the system loads attacker-controlled code instead of the intended legitimate libraries, enabling privilege escalation. The vulnerability is particularly dangerous because the plugin runs with elevated privileges during hardware scanning operations, allowing the malicious code to execute with system-level access. The flaw demonstrates poor input validation and insecure coding practices that violate established security principles for library loading operations.
Operationally, this vulnerability poses significant risks to Lenovo device security and system integrity. Organizations using affected Lenovo Vantage versions face potential system compromise, data theft, and persistent backdoor access through the privilege escalation vector. The attack surface is particularly concerning for enterprise environments where Lenovo hardware is prevalent, as successful exploitation could lead to widespread compromise across multiple devices. Security teams must consider this vulnerability as part of their threat modeling for Lenovo hardware management systems, especially when evaluating attack paths that could leverage system administration privileges. The vulnerability's impact extends beyond individual device compromise to potential network-wide infiltration through lateral movement capabilities that elevated privileges enable.
Mitigation strategies for CVE-2020-8345 require immediate patching of Lenovo Vantage software to version 1.0.46.11 or later, which addresses the DLL search path vulnerability through proper library loading validation. System administrators should also implement additional security controls such as monitoring for unusual library loading patterns and employing application whitelisting solutions to restrict execution of unauthorized DLL files. The vulnerability highlights the importance of secure coding practices and proper DLL search path management, which aligns with ATT&CK technique T1059.001 for execution through system binaries and T1068 for privilege escalation. Organizations should conduct comprehensive vulnerability assessments to identify other potentially affected Lenovo software components and implement regular security updates as part of their overall vulnerability management program. Additionally, network segmentation and monitoring controls can help detect anomalous behavior that might indicate exploitation attempts.