CVE-2022-24644 in KeyMouse Windows
Summary
by MITRE • 03/10/2022
ZZ Inc. KeyMouse Windows 3.08 and prior is affected by a remote code execution vulnerability during an unauthenticated update. To exploit this vulnerability, a user must trigger an update of an affected installation of KeyMouse.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 03/12/2022
The vulnerability identified as CVE-2022-24644 affects ZZ Inc. KeyMouse Windows version 3.08 and earlier, representing a critical remote code execution flaw that can be exploited without authentication during the software update process. This vulnerability resides within the update mechanism of the KeyMouse application, which is a mouse and keyboard automation tool designed for Windows environments. The flaw allows attackers to execute arbitrary code on affected systems through a specially crafted update payload, potentially compromising the entire system. The vulnerability is particularly concerning because it does not require user authentication or elevated privileges to exploit, making it accessible to any attacker who can intercept or manipulate the update process. The attack vector specifically targets the update functionality, which is a common attack surface in software applications where the update mechanism is not properly secured against malicious inputs.
The technical implementation of this vulnerability stems from inadequate validation and sanitization of update files within the KeyMouse application. When a user triggers an update process, the software downloads and processes update files from a remote server without sufficient verification mechanisms. This lack of proper input validation creates an environment where malicious actors can craft specially formatted update packages that contain executable code or malicious payloads. The vulnerability is classified under CWE-434, which describes "Unrestricted Upload of File with Dangerous Type," indicating that the application fails to properly validate file types and content during the update process. The flaw likely involves insufficient signature verification, lack of integrity checks, or improper handling of update file execution paths within the application's update subsystem. This represents a classic example of a software supply chain attack vector where the legitimate update mechanism becomes a pathway for malicious code execution.
The operational impact of CVE-2022-24644 extends beyond simple remote code execution, as it provides attackers with persistent access to compromised systems through the update process. Once successfully exploited, attackers can establish backdoors, escalate privileges, or deploy additional malware through the compromised KeyMouse installation. The vulnerability affects organizations that use KeyMouse for mouse and keyboard automation, which may include industrial control systems, automated testing environments, or desktop automation workflows. The attack surface is particularly broad because the update process is often automated or triggered during system startup, making exploitation more likely and less detectable. The vulnerability also has implications for enterprise environments where software updates are managed through centralized deployment mechanisms, as a compromised update server could affect multiple systems simultaneously.
Mitigation strategies for CVE-2022-24644 should focus on immediate software updates from ZZ Inc. to address the vulnerability in versions 3.09 and later. Organizations should implement network segmentation to limit update server access and monitor update traffic for suspicious patterns. The implementation of secure update mechanisms including digital signatures, integrity checks, and secure update channels can prevent exploitation attempts. Security controls should include endpoint detection and response capabilities to monitor for unusual update behavior or execution patterns. Organizations should also consider disabling automatic updates for KeyMouse until a patched version is confirmed secure, and implement strict access controls for update servers. From an ATT&CK framework perspective, this vulnerability maps to T1072 for Application Deployment Software and T1219 for Proxy Usage, as attackers may leverage the update mechanism to establish persistence. Network administrators should deploy intrusion detection systems to monitor for update-related traffic anomalies and implement software restriction policies to prevent execution of unauthorized update packages. Regular vulnerability assessments should be conducted to identify similar flaws in other software update mechanisms within the organization's infrastructure.