CVE-2023-41973 in Client Connector
Summary
by MITRE • 03/26/2024
ZSATray passes the previousInstallerName as a config parameter to TrayManager, and TrayManager constructs the path and appends previousInstallerName to get the full path of the exe. Fixed Version: Win ZApp 4.3.0.121 and later.
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Analysis
by VulDB Data Team • 10/10/2025
The vulnerability identified as CVE-2023-41973 resides within the ZSATray component of the Win ZApp software suite, specifically manifesting in how it handles installer name parameters during tray management operations. This issue represents a classic path construction flaw that can be exploited to manipulate file paths and potentially execute arbitrary code. The vulnerability affects versions prior to Win ZApp 4.3.0.121, indicating a targeted fix for this specific security weakness in the software's installation and tray management mechanisms.
The technical flaw occurs when ZSATray forwards the previousInstallerName parameter to TrayManager as a configuration value. This parameter is subsequently used by TrayManager to construct file paths through concatenation operations, creating a path construction vulnerability that allows for path manipulation. The flaw essentially enables an attacker to influence the final executable path by controlling the previousInstallerName input, which is processed without adequate sanitization or validation. This type of vulnerability falls under CWE-73, which specifically addresses improper neutralization of special elements in file paths, commonly known as path traversal or path injection attacks.
The operational impact of this vulnerability extends beyond simple path manipulation, as it can potentially allow for privilege escalation and arbitrary code execution within the context of the application's operation. When TrayManager constructs paths using unvalidated user input, it creates opportunities for attackers to redirect execution to malicious files or directories. The vulnerability's exploitation potential is significant because it operates at the installation and tray management layer, which typically runs with elevated privileges. This aligns with ATT&CK technique T1068, which covers 'Exploitation for Privilege Escalation' and demonstrates how path manipulation can be leveraged to gain higher system privileges.
The fix implemented in Win ZApp 4.3.0.121 addresses this issue by properly validating and sanitizing the previousInstallerName parameter before it is used in path construction operations. This remediation ensures that input validation is performed to prevent malicious path manipulation attempts. The solution likely involves implementing proper parameter filtering, using secure path construction methods, and ensuring that all user-supplied parameters are thoroughly validated before being incorporated into file system operations. Organizations should prioritize upgrading to version 4.3.0.121 or later to mitigate this vulnerability, as the fix directly addresses the root cause of the path injection weakness in the tray management component. The vulnerability represents a critical security concern for systems running affected versions of Win ZApp, particularly in enterprise environments where installation and tray management components often operate with elevated privileges and access to sensitive system resources.