I am doing something bad. I have a configuration file that is named via a CGI parameter. This file is config1 and I detaint it.

Now I open config1 and read another filename from it - config2. config2 I trust, because if someone has been able to edit config1 they've already breached my security. So I do this:

$index_file =~ /(.+)/;
$index_file = $1;

I realize this is kind of bad - is there a way someone can suggest to do this better? Or set my mind at ease and say there's no problem here ;P thanks

In reply to untainting that which needs no untainting by Anonymous Monk

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