Impact Analysis

The vulnerability allows a local attacker with limited privileges to execute arbitrary code and escalate their privileges to those of the service, which runs under the LocalSystem account. This means the attacker can gain full control over the affected system, potentially leading to unauthorized access, data compromise, or further malicious activities. [1, 2]

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Detection Guidance

This vulnerability can be detected by checking the service executable path for the MTAgentService to see if it is unquoted and contains spaces. On a Windows system, you can use the following command in an elevated command prompt or PowerShell to check the service path: sc qc MTAgentService. If the binary path shown is unquoted and contains spaces (e.g., C:\Program Files\MiniTool ShadowMaker\AgentService.exe without quotes), the system is vulnerable. Additionally, you can manually inspect the service properties via the Services MMC snap-in (services.msc) to verify the executable path. [1, 2]

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Mitigation Strategies

Immediate mitigation steps include correcting the unquoted service path by enclosing the executable path in quotation marks. This can be done by editing the service configuration to quote the path "C:\Program Files\MiniTool ShadowMaker\AgentService.exe". Alternatively, uninstalling or disabling the MTAgentService until a patched version is available can prevent exploitation. Ensuring that only trusted users have local access to the system also reduces risk. [1, 2]

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Executive Summary

This vulnerability is an unquoted service path issue in MiniTool ShadowMaker 3.2's MTAgentService. Because the service executable path contains spaces but is not enclosed in quotation marks, a local attacker can place a malicious executable in a location that the system might execute instead of the intended service binary. This allows the attacker to run arbitrary code with elevated privileges on the affected system. [1, 2]

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