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dnnnhostname
1997 Oct 20
1
LPRng security
...ess to the line printer daemon from a privileged
> port on a valid print client can tell lpd to create a file, providing
> the name of the file, including directory names, is no longer than 5
> characters.
LPRng checks that data and control file names conform to the spool file
format: [cf]dNNNhostname, where hostname must contain only alphanumeric
characters or "-_.".
> Problem 2: File deletion
>
> Individuals with access to the line printer daemon from a privileged
> port on a valid print client can tell lpd to remove any file on the
> system.
When given the U optio...