[HAL9000]

Ruby and Perl are UNIX programming languages that are NOT installed by default on OS X.

Let's double-check that. I believe that Perl and Ruby are part of the standard distribution. Open your Terminal.app and try a couple of commands -

perl -v

ruby -v

That will print the version numbers if they're installed on your system.

So far, moab is not attacking Ruby - they're using Ruby to generate the attack.

[Swordmaker]

So far, moab is not attacking Ruby - they're using Ruby to generate the attack.

No, they require a runtime interpreter for Ruby.

[Swordmaker]

I've installed them because I installed X11 to run some UNIX apps so my system is not a good test for this..

[Swordmaker]

That will print the version numbers if they're installed on your system.

I hadn't tested this... but yesterday, none of the demonstration exploits would work on my Mac. The MOAB guys did say a "working" version of Perl and Ruby. After you mentioned double-checking, I invoked Perl from a terminal and then tried the #2 exploit and it worked. Tried 1,3,& 4 and they didn't. Then I Invoked Ruby and they worked. The programing languages have to be running... then their vulnerabilities work. Thanks for the heads up.