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As the title states, is there a way to prevent DLL injections in jpackage generated binaries? I have created an EXE for a JavaFX application. During security testing of this application, it was noticed that arbitrary DLLs can be loaded during execution of the application.

Some remediation steps were mentioned such as:

  • Use of SearchPath to identify location of library or component
  • Use of LoadLibrary to identify OS version
  • Use fully qualified paths for all LoadLibrary, ShellExecute and CreateProcess calls where possible
  • Implement calls to SetDllDirectory with an empty string to remove current working directory from default DLL search order where required
  • Sign executable files and verify signature before executing EXE or DLL files

If my code used any of the above calls directly, I could control it. But is there any way to control these after the files have been generated?

P.S. I use JDK 16 and the Badass Runtime Plugin to generate the EXE via a Gradle task

Aayush Jain
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