January 25, 2005

Movable Spam

It appears that any web site running Movable Type, the online publishing software by Six Apart used not only by this humble site, but by countless other reputable blogs and online magazines large and small, have suddenly become incredibly vulnerable to spam.

No no no, not receiving comment spam. I know you already knew that. I'm referring to sending spam.

That's right. Spammers with the know-how (or the initiative to go and read how to do it) can hiijack the mt-comments.cgi script on a Movable Type installation and use it to send out spam to hundreds of email addresses at a time. Using your address.

This isn't spoofing (faking the return address), this is using your address and your mail server. Yes, that's right - this is extremely bad.

This is hot on the tail of news that this same script was responsible for bringing down expensive servers all over the place because of the load it places on the host when a spammer hammers it with an automated process that tries to leave comment spam on an MT blog.

So what can you do about it?

If you host on TypePad, you shouldn't have to do anything as no doubt Six Apart will upgrade you automatically. MT users who have bought a recent version of the software can upgrade to version 3.15 for free. And for those of us who are still running an earlier version, a patch is available, and should be good for most older versions (I think the most recent version before Six Apart began charging for MT was v 2.661).

Or you could just upgrade to TextPattern or WordPress, both fine personal publishing systems that are really evolving into mature and intelligent products. And so far, immune to such attacks. Whether these products are less susceptible because they are designed better, or just less popular, is a call I'm not qualified to make. It's probably a bit of both.

I have been using TextPattern for a few projects recently and have been impressed enough to decide to upgrade 35 Degrees and opinios to use it soon. Unfortunately it takes time and effort, so it won't happen overnight. But it will happen!

Posted by mattymcg at January 25, 2005 09:39 PM
Comments