Horde webmail: mysql access

[sig@xxxxxxxxxxxxxxxxx]

Hello

I've found a very interesting feature in Horde webmail system...

Horde is a very popular PHP based webmail system, with many accessories. Most 
of these web applications (for example: turba, mnemo, etc) are using mysql
database server, to store e-mail addresses, user memos, informations about 
users, sometimes passwords etc.

By default, You can access to these database servers, with the username: 
"horde" and with no password, from a remote host. 
Then you will have permission to list the databases, and to use some of them. 
In fact, "horde" and "test" databases are available for reading, and 
writing, in many cases. 

I think it is dangerous; There are many open-wide database servers around the 
world -> everybody can use them for their own purposes.
(Horde users personal memos, address lists, and (sometimes their) passwords are 
also accessible)

This is not a bug, this is a feature. (?)
Problem can be solved using a configured firewall, or an ACL, or just deny the 
connections from outside and allow only localhost for mysqld. 

ps: i think, unwanted connections from the internet can cause Denial of Service 
attacks; too many db queries, or storing long size datas can be 
dangerous ...
what do you think about it?


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