CVE-2020-0741 in Windows
Summary
by MITRE
An elevation of privilege vulnerability exists in the way that the Connected Devices Platform Service handles objects in memory, aka 'Connected Devices Platform Service Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-0740, CVE-2020-0742, CVE-2020-0743, CVE-2020-0749, CVE-2020-0750.
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Analysis
by VulDB Data Team • 03/30/2024
The vulnerability described in CVE-2020-0741 represents a critical elevation of privilege flaw within Microsoft's Connected Devices Platform Service, which operates as a background component facilitating device connectivity and synchronization across Windows operating systems. This service enables seamless communication between Windows devices and various connected peripherals, including IoT devices, smartphones, and other networked equipment through standardized protocols. The vulnerability specifically manifests in how the service manages memory objects, creating a pathway for malicious actors to escalate their privileges from standard user level to SYSTEM level access, effectively compromising the entire system. The flaw exists within the service's memory handling mechanisms, where improper validation or sanitization of objects could lead to arbitrary code execution with elevated privileges.
The technical exploitation of this vulnerability leverages memory corruption principles that align with common software security weaknesses categorized under CWE-121, which addresses stack-based buffer overflow conditions, and CWE-122, which covers heap-based buffer overflow scenarios. Attackers can potentially manipulate the Connected Devices Platform Service by crafting malicious inputs that cause memory corruption during object handling operations. This type of vulnerability falls within the ATT&CK framework's privilege escalation techniques, specifically under T1068, which involves exploiting legitimate credentials and system access to gain higher privileges. The service's operation in a privileged context makes it an attractive target for attackers seeking to establish persistent access or escalate their current access level to full system control.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it can enable attackers to execute arbitrary code with SYSTEM privileges, potentially leading to complete system compromise. Once an attacker gains elevated privileges through this vulnerability, they can access sensitive system resources, modify critical system files, install malicious software, and establish persistence mechanisms that are difficult to detect or remove. The Connected Devices Platform Service typically runs with high privileges due to its role in managing device connections, making the potential impact of this vulnerability particularly severe. Organizations running affected Windows versions may experience unauthorized access to network resources, data exfiltration, and the establishment of backdoors that persist across system reboots. The vulnerability's presence in the Connected Devices Platform Service means that any device with this service enabled and running is potentially at risk, particularly in enterprise environments where device connectivity is extensively utilized.
Mitigation strategies for CVE-2020-0741 should focus on immediate patch deployment through Microsoft's regular security updates, as the vulnerability was addressed in the Microsoft security bulletin released in April 2020. System administrators should ensure that all Windows systems are updated to the latest security patches, particularly those addressing the Connected Devices Platform Service. Network segmentation and access control measures can help limit the potential impact of exploitation by restricting unauthorized access to systems running this service. Monitoring for unusual behavior in the Connected Devices Platform Service logs and memory usage patterns can help detect potential exploitation attempts. Additionally, implementing least privilege principles and disabling unnecessary device connectivity features can reduce the attack surface. Security teams should also consider implementing behavioral monitoring solutions that can detect anomalous privilege escalation activities and memory corruption patterns that may indicate exploitation of this vulnerability. The vulnerability's classification as an elevation of privilege issue emphasizes the importance of maintaining up-to-date security patches and implementing comprehensive endpoint protection strategies to prevent exploitation attempts.