CVE-2022-43293 in Driver
Summary
by MITRE • 04/11/2023
Wacom Driver 6.3.46-1 for Windows was discovered to contain an arbitrary file write vulnerability via the component \Wacom\Wacom_Tablet.exe.
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Analysis
by VulDB Data Team • 02/11/2025
The vulnerability identified as CVE-2022-43293 represents a critical arbitrary file write flaw within the Wacom Driver 6.3.46-1 for Windows operating systems. This security weakness resides in the component \Wacom\Wacom_Tablet.exe which serves as the primary executable for Wacom tablet driver functionality. The vulnerability stems from inadequate input validation and insufficient file system access controls within the driver installation and execution processes. Attackers can exploit this flaw by manipulating the installation procedure or by injecting malicious files through the vulnerable executable component, potentially leading to unauthorized modifications of critical system files or the installation of malicious payloads.
The technical implementation of this vulnerability aligns with CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal attacks. The Wacom_Tablet.exe component appears to lack proper validation of file paths during installation or update processes, allowing attackers to write files to arbitrary locations within the Windows file system. This flaw particularly affects systems where the driver is installed with elevated privileges, as the vulnerable executable may operate with administrator-level permissions. The attack vector typically involves crafting malicious installation packages or exploiting existing installation processes to place unauthorized files in system directories or protected locations.
The operational impact of CVE-2022-43293 extends beyond simple file system manipulation, as it creates potential for privilege escalation and persistent system compromise. An attacker who successfully exploits this vulnerability can install rootkits, backdoors, or other malicious software that persists across system reboots. The vulnerability affects the integrity of the Windows operating system by allowing unauthorized modifications to critical driver components and system files. This flaw particularly threatens enterprise environments where Wacom tablets are widely deployed, as it could enable attackers to establish persistent access points within corporate networks. The vulnerability also aligns with ATT&CK technique T1547.001, which covers registry run keys and startup folder, as attackers might leverage this flaw to establish persistence mechanisms.
Mitigation strategies for CVE-2022-43293 should prioritize immediate driver updates from Wacom's official sources, as the vendor has likely released patches addressing this specific vulnerability. System administrators should implement strict access controls and privilege separation, ensuring that driver installation processes run with minimal required permissions rather than administrator privileges. Network segmentation and monitoring should be enhanced to detect unusual file system modifications or installation activities related to Wacom components. Organizations should also conduct thorough vulnerability assessments to identify systems running the vulnerable driver version and implement automated patch management solutions to prevent future exploitation. Additionally, endpoint detection and response solutions should be configured to monitor for suspicious file write activities in system directories, particularly those associated with driver installation and update processes. The vulnerability demonstrates the importance of secure software development practices and proper input validation in device driver components, as these elements directly impact system security and user safety.