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Staff FTP v3.04 Software - DLL Hijacking Vulnerability
A local dll injection vulnerability has been discovered in the official Staff-FTP v3.04 software.
The issue allows local attackers to inject code to vulnerable libraries to compromise the process or to gain higher access privileges.
The windows software is vulnerable to dll hijacking attacks. The vulnerability is located in the netapi32.dll and dwmapi.dll file extensions.
The software does not specify the fully qualified path to a dynamic-linked libraries (netapi32.dll and dwmapi.dll). The vulnerable version affects
the Wise-FTP v3.04 software. The security risk of the local file include vulnerability is estimated as high with a cvss (common vulnerability
scoring system) count of 6.0.
Proof of Concept (PoC):
The dll hijack vulnerability can be exploited by local attackers with restricted system user account and without user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.
Manual steps to reproduce the local vulnerability ...
1. Compile dll and rename to Linkinfo.dll or mpr.dll
2. Copy Linkinfo.dll to C:\Program Files\Staff-FTP
3. Launch Staff-FTP
BOOL WINAPI DllMain(HINSTANCE hinstDLL,DWORD fdwReason, LPVOID lpvReserved)