Doing this recursively is easy
Give it a shot, what the hey...

Sorry. Can you repost the script. Can't find it.

It is here:
http://www.linuxquestions.org/questi...threadid=91333

Even doing chmod -R 755 / by itself isn't going to totally solve the problem because it won't reset the setuid or setgid bit on binaries (such as passwd and crontab) that require one or both of them. DB03 could find a list of setuid/setgid binaries and manually try to reset them, which would work.

Also, some directories should not be world readable/executable (home dirs and some config dirs) so this will leave a slightly open system from a security point of view. You can run a security scanner such as Tara or COPS (though they are slightly outdated), which will give hints as to how to correct a lot of that though.