While trying to debug the Shorten2Ping plugin (a really nifty thing, if I could get it working) I went digging through my Apache error logs looking for any PHP errors. (Well, okay, I didn’t actually dig, I just did a last on the file.) What I saw was interesting, even though it did not help the debugging at all. In fact it kind of derailed the whole process. What I saw was an obvious attempt to find Horde on my server (which I did run temporarily a few years ago). My first guess was that there was a new exploit out for Horde. I did some digging around and found that, yes, indeedy, there is. I found the details of the exploit at securityvulns.com (which is a mirror of or mirrored by www.security.nnov.ru which is where the first relevant Google link took me.) Oddly enough I have not seen this show up on any other security sites yet, even though I see that the report on securityvulns.com is from March.
Anyhow, in case you are curious, here are the relevant lines from the log. (IPs have not been changed to protect the guilty.)
[Sat Jun 06 01:46:53 2009] [error] [client 81.210.76.194] File does not exist: /var/www/localhost/htdocs/evardsson.com/README [Sat Jun 06 01:46:53 2009] [error] [client 81.210.76.194] File does not exist: /var/www/localhost/htdocs/evardsson.com/horde [Sat Jun 06 01:46:54 2009] [error] [client 81.210.76.194] File does not exist: /var/www/localhost/htdocs/evardsson.com/horde2 [Sat Jun 06 01:46:55 2009] [error] [client 81.210.76.194] File does not exist: /var/www/localhost/htdocs/evardsson.com/horde3 [Sat Jun 06 01:46:56 2009] [error] [client 81.210.76.194] File does not exist: /var/www/localhost/htdocs/evardsson.com/horde-3.0.5 [Sat Jun 06 01:46:57 2009] [error] [client 81.210.76.194] File does not exist: /var/www/localhost/htdocs/evardsson.com/horde-3.0.6 [Sat Jun 06 01:46:58 2009] [error] [client 81.210.76.194] File does not exist: /var/www/localhost/htdocs/evardsson.com/horde-3.0.7 [Sat Jun 06 01:46:58 2009] [error] [client 81.210.76.194] File does not exist: /var/www/localhost/htdocs/evardsson.com/horde-3.0.8 [Sat Jun 06 01:46:59 2009] [error] [client 81.210.76.194] File does not exist: /var/www/localhost/htdocs/evardsson.com/horde-3.0.9 [Sat Jun 06 01:47:00 2009] [error] [client 81.210.76.194] File does not exist: /var/www/localhost/htdocs/evardsson.com/mail [Sat Jun 06 01:47:01 2009] [error] [client 81.210.76.194] File does not exist: /var/www/localhost/htdocs/evardsson.com/email [Sat Jun 06 01:47:02 2009] [error] [client 81.210.76.194] File does not exist: /var/www/localhost/htdocs/evardsson.com/webmail [Sat Jun 06 01:47:03 2009] [error] [client 81.210.76.194] File does not exist: /var/www/localhost/htdocs/evardsson.com/newmail [Sat Jun 06 01:47:03 2009] [error] [client 81.210.76.194] File does not exist: /var/www/localhost/htdocs/evardsson.com/mails [Sat Jun 06 01:47:04 2009] [error] [client 81.210.76.194] File does not exist: /var/www/localhost/htdocs/evardsson.com/mailz