i am working on a script that will run setuid. i know the security lectures, but unfortunately, this one touches /etc/passwd so i am just trying to use taint checks as oft as possible and watch my back with any holes i can foresee.

in the process of the script however, i am writing the users being touched to a flat file. when running the script as setuid, i get an error complaining that opening a file via:

open(FH, "/etc/pop3/users.$domain")
  or die "Cant open file for reading : $!\n";
[download]

is not allowed or doesnt pass checks. sorry, but i cant at the moment recall the error and dont have the ability to duplicate it at the moment.

does this sound familiar? is there a way to safely perform such a task in a setuid file?

humbly -c

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