How To Write a Setuid Program


Published: Apr 12, 2000 Updated: Apr 12, 2000 Section: Network Security Library :: Software Engineering Author: Printable Version Adjust font size: Rating: 3.1/5 - 12 Votes 1 2 3 4 5

UNIX Systems allow certain programs to grant privileges to users temporarily; these are called setuid programs. Because they explicitly violate the protection scheme designed into UNIX, they are among the most difficult programs to write. This paper discusses how to write these programs to make using them to compromise a system as difficult as possible.

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