Mistakes
  chdir "/tmp";
  Come on - check exit values already!
  open FILEHANDLE, ">tmp.$$";
  Filename is predictable.
  Can be abused by dangling symlink attacks, etc.

Copyright 2003, Bri Hatch of Onsight, Inc.

Presented at SPUG, 2003.

Presentation created using vim and MagicPoint.