LPPlus programs dccsched, dcclpdser, dccbkst, dccshut, dcclpdshut, and dccbkstshut are installed setuid root and world executable, which allows arbitrary local users to start and stop various LPD services.

LPPlus creates the lpdprocess file with world-writeable permissions, which allows local users to kill arbitrary processes by specifying an alternate process ID and using the setuid dcclpdshut program to kill the process that was specified in the lpdprocess file.

The dccscan setuid program in LPPlus does not properly check if the user has the permissions to print the file that is specified to dccscan, which allows local users to print arbitrary files.