The (1) Activity Monitor.app/Contents/Resources/pmTool, (2) Keychain Access.app/Contents/Resources/kcproxy, and (3) ODBC Administrator.app/Contents/Resources/iodbcadmintool programs in /Applications/Utilities/ in Mac OS X 10.4.8 have weak permissions (writable by admin group), which allows local admin users to gain root privileges by modifying a program and then performing permissions repair via diskutil.